RE: How do you tell orion not to autocommit?
Wrap a transaction around your operation. This way, the transaction will begin when your operation starts, and commits only when your operation is complete. Unless, you are accessing your entity beans from a client layer. This is one of the reasons why you need to use Stateless session beans to wrap your model. You should never have to touch the autoCommit property of a connection. -AP_ http://www.myprofiles.com/member/profile/apara_personal -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of prasanth sb Sent: Saturday, May 25, 2002 10:44 PM To: Orion-Interest Subject: Re: How do you tell orion not to autocommit? Hi Keith, If you are using Bean managed persistence, then get the connection object using jndi lookup, then use connection.setAutocommit(false). I am not aware how to do this in container managed persistence.Can some great guys explain this?Wish you a good day. thanks, Prasanth God gives you more than you expect From: Keith Kwiatek [EMAIL PROTECTED] Reply-To: Orion-Interest [EMAIL PROTECTED] To: Orion-Interest [EMAIL PROTECTED] Subject: How do you tell orion not to autocommit? Date: Wed, 17 Apr 2002 07:16:48 -0400 Hello, I am running orion with a datasource and some jsp's with some jdbc beans. When I insert/update/delete it seems to be set to autocommit. How do I tell orion not to autocommit? Thanks, Keith _ Send and receive Hotmail on your mobile device: http://mobile.msn.com
RE: Initial context problem.
Not sure if the code you pasted is correct, however, you are missing a new
keyword in front of the InitialContext(). Also, in your second try/catch
block you are missing a call to new InitialContext(). I might be picky, but
the source code you posted is not at all the source code that you are using
(unless are you using a strange version of the Java Complier).
Can you isolate your problem into a small piece of code that works, and try
to post again?
Thanks.
-AP_
http://www.alexparansky.com
Java/J2EE Architect/Consultant
http://www.myprofiles.com/member/profile/apara_personal
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jesper
Rasmussen
Sent: Wednesday, May 01, 2002 3:10 AM
To: Orion-Interest
Subject: Initial context problem.
Hi all,
Im trying to make an application which askes for the login and password
to connect to the application deployed on 1.5.4 orion server.
It works fine if i specify the correct login(admin). However if I uses
some wrong cridentials(admin1) i get an exception which also is fine.
HOWEVER when i try to login again, without restarting the application)
using the correct info I still get the old exception
(javax.naming.AuthenticationException: Invalid username/password for
beansApp (admin1)).
If i close the app and login again with the correct it works fine.
to me it seems like the enviroment i pass to the constructor of
InitialContext is ignored the second time.
I have tried to use close() to no avail.
Does anyone have a clue?? Thanks!
cheers
JEsper
--more or less the code that cause the bug!
server=ormi://127.0.0.1/beansApp;
login=admin1;
password=123;
env = new java.util.Hashtable();
env.put(java.naming.provider.url,server);
env.put(java.naming.factory.initial,com.evermind.server.ApplicationCl
ientInitialContextFactory);
env.put(java.naming.security.principal,login);
env.put(java.naming.security.credentials,password);
InitialContext initial;
try {
initial = InitialContext(env);
catch(NamingException e) {
try {
login=admin;
env = new java.util.Hashtable();
env.put(java.naming.provider.url,server);
env.put(java.naming.factory.initial,com.evermind.server.ApplicationCl
ientInitialContextFactory);
env.put(java.naming.security.principal,login);
env.put(java.naming.security.credentials,password);
} catch(NamingException ex) {
//ACK. chould not get here!!!
}
RE: How can I simplify a URL?
I decided to take Scott's Farquhar approach to url simplification, here is what I decided on: http://www.myprofiles.com/member/profile/apara_personal Other options were viable but I did not choose them for the following reasons: 1. A filter would have difficulties distinguishing between IMG and other types of requests 2. Using HTTP error 404 page to attempt to read the profile did not seem clean 3. Using a virtual server along with response.sendRedirect(new server) would have exposed the virtual server to the user. I did not want to do this, since once the user gets to the virtual server it's difficult to return back to the original. Besides, now I would have to maintain two different applications. Thanks for all your help. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant http://www.myprofiles.com/member/profile/apara_personal -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Scott Farquhar Sent: Thursday, April 18, 2002 3:04 AM To: Orion-Interest Subject: Re: How can I simplify a URL? Just have one directory level. eg: http://view.myprofiles.com/p/127 Then map the servlet to /p* That avoids problems with images. Cheers, Scott Alex Paransky wrote: I have a url which looks like this: http://www.myprofiles.com/view.do?profileId=127 I would like to be able to replace it with: http://view.myprofiles.com/127 I know how to create a new website with view.myprofiles being serviced by orion. I am just not sure how to map the /127 to execute /view.do?profileId=127. I was thinking of mapping a servlet to / context, however, the concern I have is that if there are any images I don't want to servlet to process them. Also, will the jsp:include work correctly with this scenario? Thanks for any suggestions. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant http://www.myprofiles.com/member/view.do?profileId=127 -- Scott Farquhar :: [EMAIL PROTECTED] Atlassian :: http://www.atlassian.com Supporting YOUR J2EE World
How can I simplify a URL?
I have a url which looks like this: http://www.myprofiles.com/view.do?profileId=127 I would like to be able to replace it with: http://view.myprofiles.com/127 I know how to create a new website with view.myprofiles being serviced by orion. I am just not sure how to map the /127 to execute /view.do?profileId=127. I was thinking of mapping a servlet to / context, however, the concern I have is that if there are any images I don't want to servlet to process them. Also, will the jsp:include work correctly with this scenario? Thanks for any suggestions. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant http://www.myprofiles.com/member/view.do?profileId=127
RE: distribute beans in different jars
One immediate way to speed your deployment time up, is to switch to using Jikes as your compiler. We have done this recently and it takes seconds to redeploy entire application. Afterwards, you can look in to splitting session beans from entity beans. - -AP_ See my profile at http://www.myprofiles.com/member/view.do?profileId=128 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Matthias Gottschlich Sent: Friday, April 05, 2002 5:09 AM To: Orion-Interest Subject: distribute beans in different jars Hi, i am new in development of j2ee-applications, so i think my question could be too stupid.. We have 70 entity-beans with local and remote interfaces and 5 session beans (will be more in future) in one ejb-jar-file. The session-beans reference the entity beans with local interfaces! The entity-beans are very stable ( because we are developing the session beans now). The ejb-jar-file resides in addition with an client.jar-file in on ear-file. The deployment time is very long ( a few minutes ). I think the time is very long, because orion test the entity-beans on changes (which never occure in the moment). Is there any way to speed up the deployment time? Could we divide the entity-beans and the session-beans in two different jar, to speed up? (i think the local references could be a problem) best regards Matthias Gottschlich mail: [EMAIL PROTECTED]
ejbStore not getting called! Please provide any comments you have...
Dear OrionServer group,
I know this is a far shot, but I am hoping that someone had a similar
experience.
The ejbStore method is not being called for an CMP2.0 entity bean. Not all
beans, just this one! The record is updated, and seems to be correct
somewhere in memory, but it's never written out to disk. If I restart
orion, the record is back to what it is on disk. The only time I see
ejbStore IS called is on initial create. Again, this is happening on only 1
bean. Here is the trace:
rejecting: 714 note: asdfasdfasdfasdfasdf
request.MemberRequestServiceBean (?:?) - rejectRequest: 714
note:asdfasdfasdfasdfasdf
request.RequestEntityBean (?:?) - reject request begin: 714 with note:
asdfas current status: 1
request.RequestEntityBean (?:?) - reject request end: 714 with note: asdfas
current status: 3
In the following code sample setStatus and setNote are both abstract
functions (CMP2.0). The setStatus is changing the state of the object since
I print it out in the second log statement.
The code:
public void ejbStore() {
log.debug(ejbStore: + getKey().getId());
}
public void ejbLoad() {
super.ejbLoad();
log.debug(ejbLoad: + getKey().getId());
}
public void reject(final String note) {
if (log.isDebugEnabled())
log.debug(reject request begin: + getKey().getId() + with note: +
note + current status: + getStatus());
//Assure proper status
//
if (getStatus() != RequestEntity.STATUS_PENDING)
throw
new EJBException(Cannot reject request in non-pending status);
//Configure new status
//
setStatus(RequestEntity.STATUS_REJECTED);
//Configure note
//
setNote(note);
//Debug
//
if (log.isDebugEnabled())
log.debug(reject request end: + getKey().getId() + with note: +
getNote() + current status: + getStatus());
}
Thanks.
-AP_
RE: ejbStore not getting called! Please provide any comments youhave...
I did not mention that I am running Orion 1.5.3 (I cannot switch to 1.5.4)
because I have too many entity objects with relations already implemented in
1.5.3). This used to work before, but is not working now. I am not sure
what could have changed to cause such a problem.
I have already tried the exclusive-write-access=false but that did not
help at all. I am also running on RedHat 7.1 Linux, and using java version
1.3.1_01.
Thanks for any help you can offer.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky
Sent: Wednesday, March 20, 2002 5:07 AM
To: Orion-Interest
Subject: ejbStore not getting called! Please provide any comments you
have...
Dear OrionServer group,
I know this is a far shot, but I am hoping that someone had a similar
experience.
The ejbStore method is not being called for an CMP2.0 entity bean. Not all
beans, just this one! The record is updated, and seems to be correct
somewhere in memory, but it's never written out to disk. If I restart
orion, the record is back to what it is on disk. The only time I see
ejbStore IS called is on initial create. Again, this is happening on only 1
bean. Here is the trace:
rejecting: 714 note: asdfasdfasdfasdfasdf
request.MemberRequestServiceBean (?:?) - rejectRequest: 714
note:asdfasdfasdfasdfasdf
request.RequestEntityBean (?:?) - reject request begin: 714 with note:
asdfas current status: 1
request.RequestEntityBean (?:?) - reject request end: 714 with note: asdfas
current status: 3
In the following code sample setStatus and setNote are both abstract
functions (CMP2.0). The setStatus is changing the state of the object since
I print it out in the second log statement.
The code:
public void ejbStore() {
log.debug(ejbStore: + getKey().getId());
}
public void ejbLoad() {
super.ejbLoad();
log.debug(ejbLoad: + getKey().getId());
}
public void reject(final String note) {
if (log.isDebugEnabled())
log.debug(reject request begin: + getKey().getId() + with note: +
note + current status: + getStatus());
//Assure proper status
//
if (getStatus() != RequestEntity.STATUS_PENDING)
throw
new EJBException(Cannot reject request in non-pending status);
//Configure new status
//
setStatus(RequestEntity.STATUS_REJECTED);
//Configure note
//
setNote(note);
//Debug
//
if (log.isDebugEnabled())
log.debug(reject request end: + getKey().getId() + with note: +
getNote() + current status: + getStatus());
}
Thanks.
-AP_
RE: ejbStore not getting called! Please provide any comments youhave...
I seem to have solved my problem. It had to do with boolean isModified()
function call. I accidentally added this function to my base class and
defaulted the return value to false.
Thanks to all that responded.
-AP_
http://www.alexparansky.com
Java/J2EE Architect/Consultant
http://www.myprofiles.com/member/view.do?profileId=127
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky
Sent: Wednesday, March 20, 2002 8:35 AM
To: Orion-Interest
Subject: RE: ejbStore not getting called! Please provide any comments
you have...
I did not mention that I am running Orion 1.5.3 (I cannot switch to 1.5.4)
because I have too many entity objects with relations already implemented in
1.5.3). This used to work before, but is not working now. I am not sure
what could have changed to cause such a problem.
I have already tried the exclusive-write-access=false but that did not
help at all. I am also running on RedHat 7.1 Linux, and using java version
1.3.1_01.
Thanks for any help you can offer.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky
Sent: Wednesday, March 20, 2002 5:07 AM
To: Orion-Interest
Subject: ejbStore not getting called! Please provide any comments you
have...
Dear OrionServer group,
I know this is a far shot, but I am hoping that someone had a similar
experience.
The ejbStore method is not being called for an CMP2.0 entity bean. Not all
beans, just this one! The record is updated, and seems to be correct
somewhere in memory, but it's never written out to disk. If I restart
orion, the record is back to what it is on disk. The only time I see
ejbStore IS called is on initial create. Again, this is happening on only 1
bean. Here is the trace:
rejecting: 714 note: asdfasdfasdfasdfasdf
request.MemberRequestServiceBean (?:?) - rejectRequest: 714
note:asdfasdfasdfasdfasdf
request.RequestEntityBean (?:?) - reject request begin: 714 with note:
asdfas current status: 1
request.RequestEntityBean (?:?) - reject request end: 714 with note: asdfas
current status: 3
In the following code sample setStatus and setNote are both abstract
functions (CMP2.0). The setStatus is changing the state of the object since
I print it out in the second log statement.
The code:
public void ejbStore() {
log.debug(ejbStore: + getKey().getId());
}
public void ejbLoad() {
super.ejbLoad();
log.debug(ejbLoad: + getKey().getId());
}
public void reject(final String note) {
if (log.isDebugEnabled())
log.debug(reject request begin: + getKey().getId() + with note: +
note + current status: + getStatus());
//Assure proper status
//
if (getStatus() != RequestEntity.STATUS_PENDING)
throw
new EJBException(Cannot reject request in non-pending status);
//Configure new status
//
setStatus(RequestEntity.STATUS_REJECTED);
//Configure note
//
setNote(note);
//Debug
//
if (log.isDebugEnabled())
log.debug(reject request end: + getKey().getId() + with note: +
getNote() + current status: + getStatus());
}
Thanks.
-AP_
How can I reload (stop/start) an application-client with startup=true property set?
I have an application client which starts up when server is started. This client is a timer which causes certain session to execute every 30 seconds or so. The problem occurs when I redeploy my application by dropping a new .EAR file. While the application is re-deployed, the old client continues to run along with the instance of the new client. How can I terminate the old client when the server re-deployes the application? I have been thinking about a couple ways, but have not tried any of these yet: 1. Perhaps the client's main thread will get an InterruptedException when the server re-deploys. I can use this to terminate the old client. This is just a guess. I am not sure if this indeed happends. 2. I could setup a socket listener in the client to listen on a particular port for a quit command. The new instance would first post a quit command on that port, and then proceed to take over and listen. This way, each new instance will signal to the old one to stop before starting. Are there better ways to stop an old client? Hopefully, they will also be portable. Thanks. - -AP_ See my profile at http://www.myprofiles.com/member/view.do?profileId=128
How can I perform an action when web user is first logged on?
I would like to keep lastLogonDate for my users. However, with the J2EE security model it does not appear that I can inject any processing between the time when user is authenticated and a forward to the target url occurs. Did anyone solve this problem. If so, could you share your solution? -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant
RE: Orion 1.5.4 - M-N Relationship chokes (?)
I got the same result. At first, I thought it had something to do with the fact that I was still using non Local interfaces (since 1.5.3 does not have support for Local interfaces yet), however, trying a small example returned the same exception. I am not sure how these guys tested their N-M relationship support, but it does not appear to be working as of yet. For now, I am sticking with 1.5.3. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Phillip Ross Sent: Friday, February 15, 2002 9:25 PM To: Orion-Interest Subject: Re: Orion 1.5.4 - M-N Relationship chokes (?) Yeah i get the same thing... was wondering if i was just doing something wrong. I'll send an update when i get it working. --- Ray Harrison [EMAIL PROTECTED] wrote: Resend - it didn't post the first time:--- - --- Hello - For the hell of it I decided to test M-N relationships in the latest release of Orion (1.5.4). I started by trying to work with some of Monson-Haefel's examples - the result was the same as that below. To simplify it, I just created a couple of test entities, each with a collection based reference to the other entity. Using local interfaces. The 1-N relationships seem to work just fine. I am wondering if I am missing something in the M-N relationship construction. otest1Local: // Collection ref to otest2 public Collection getOtest2s( ); public void setOtest2s(Collection otest2s); otest1EJB: // abstract methods public abstract Collection getOtest2s( ); public abstract void setOtest2s(Collection otest2s); There is a similar setup for the other entity. The relationship references are (from ejb-jar.xml): relationships ejb-relation ejb-relation-nameotest1-otest2/ejb-relation-name ejb-relationship-role ejb-relationship-role-name otest1-has-many-otest2 /ejb-relationship-role-name multiplicityMany/multiplicity relationship-role-source ejb-nameotest1/ejb-name /relationship-role-source cmr-field cmr-field-nameotest2s/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-name otest2-has-many-otest1 /ejb-relationship-role-name multiplicityMany/multiplicity relationship-role-source ejb-nameotest2/ejb-name /relationship-role-source cmr-field cmr-field-nameotest1s/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role /ejb-relation /relationships As I said earlier, the faithful 1-many relationships work. When changed to an m-n relationship, as the entity jar is being deployed it comes back with the following: Auto-deploying testorion (New server version detected)... Auto-deploying server.jar (No previous deployment found)... java.lang.NullPointe rException at com.evermind._eh._hg(.:120) at com.evermind._eh._de(.:173) at com.evermind._ef._de(.:292) at com.evermind._em._nvc(.:395) at com.evermind._eq.init(.:63) at com.evermind._ed._aa(.:186) at com.evermind._ai._kmd(.:526) at com.evermind._aj._kmd(.:287) at com.evermind._aj._vxb(.:119) at com.evermind.server.ApplicationServer._sxc(.:1308) at com.evermind.server.ApplicationServer._ige(.:1265) at com.evermind.server.ApplicationServer._vxb(.:1003) at com.evermind._cxb.run(.:89) at java.lang.Thread.run(Thread.java:536) at com.evermind._bt.run(.:47) = and then doesn't deploy of course. Before I submit a bug for this - did I miss something somewhere or is this legit? Cheers! Ray __ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com __ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com
RE: Orion 1.5.4 - M-N Relationship chokes (?)
I was able to use M-N relationship in 1.5.3, although it did create 2 different tables and did not act as expected. But, I was able to have it working. With this version (1.5.4) it does not work, period. So, I cannot really move onto the 1.5.4 version until this problem is fixed. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ray Harrison Sent: Saturday, February 16, 2002 5:10 PM To: Orion-Interest Subject: RE: Orion 1.5.4 - M-N Relationship chokes (?) I think 1.5.4 has enough stable changes in it to move forward (I was particularly interested in the JMS changes and a few other items), and the 1-N relationships still seem to work, but I would like to know how they tested the N-M feature. I used local interfaces, and ejb2.0 style CMP/R. Ray --- Alex Paransky [EMAIL PROTECTED] wrote: I got the same result. At first, I thought it had something to do with the fact that I was still using non Local interfaces (since 1.5.3 does not have support for Local interfaces yet), however, trying a small example returned the same exception. I am not sure how these guys tested their N-M relationship support, but it does not appear to be working as of yet. For now, I am sticking with 1.5.3. -AP_ http://www.alexparansky.com Java/J2EE Architect/Consultant -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Phillip Ross Sent: Friday, February 15, 2002 9:25 PM To: Orion-Interest Subject: Re: Orion 1.5.4 - M-N Relationship chokes (?) Yeah i get the same thing... was wondering if i was just doing something wrong. I'll send an update when i get it working. --- Ray Harrison [EMAIL PROTECTED] wrote: Resend - it didn't post the first time:--- - -- -- --- Hello - For the hell of it I decided to test M-N relationships in the latest release of Orion (1.5.4). I started by trying to work with some of Monson-Haefel's examples - the result was the same as that below. To simplify it, I just created a couple of test entities, each with a collection based reference to the other entity. Using local interfaces. The 1-N relationships seem to work just fine. I am wondering if I am missing something in the M-N relationship construction. otest1Local: // Collection ref to otest2 public Collection getOtest2s( ); public void setOtest2s(Collection otest2s); otest1EJB: // abstract methods public abstract Collection getOtest2s( ); public abstract void setOtest2s(Collection otest2s); There is a similar setup for the other entity. The relationship references are (from ejb-jar.xml): relationships ejb-relation ejb-relation-nameotest1-otest2/ejb-relation-name ejb-relationship-role ejb-relationship-role-name otest1-has-many-otest2 /ejb-relationship-role-name multiplicityMany/multiplicity relationship-role-source ejb-nameotest1/ejb-name /relationship-role-source cmr-field cmr-field-nameotest2s/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-name otest2-has-many-otest1 /ejb-relationship-role-name multiplicityMany/multiplicity relationship-role-source ejb-nameotest2/ejb-name /relationship-role-source cmr-field cmr-field-nameotest1s/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role /ejb-relation /relationships As I said earlier, the faithful 1-many relationships work. When changed to an m-n relationship, as the entity jar is being deployed it comes back with the following: Auto-deploying testorion (New server version detected)... Auto-deploying server.jar (No previous deployment found)... java.lang.NullPointe rException at com.evermind._eh._hg(.:120) at com.evermind._eh._de(.:173) at com.evermind._ef._de(.:292) at com.evermind._em._nvc(.:395) at com.evermind._eq.init(.:63) at com.evermind._ed._aa(.:186) at com.evermind._ai._kmd(.:526) at com.evermind._aj._kmd(.:287) at com.evermind._aj._vxb(.:119) at com.evermind.server.ApplicationServer._sxc(.:1308) at com.evermind.server.ApplicationServer._ige(.:1265) at com.evermind.server.ApplicationServer._vxb(.:1003) at com.evermind._cxb.run(.:89) at java.lang.Thread.run(Thread.java:536) at com.evermind._bt.run(.:47) = and then doesn't deploy of course. Before I submit a bug for this - did I miss something somewhere or is this legit? Cheers! Ray __ Do You Yahoo!? Yahoo! Sports
RE: IllegalStateException
You mention that one of the entity beans contains a timer, but you have not mentioned how are you holding on to that timer. Is it a "Static" reference in the entity bean or is it a Member of the EJB? Container could physically remove the EJB from memory at any time, how are you dealing with this? A typical Timer implementation uses a thread. You cannot start or stop threads in an EJB object. If you want to use a timer, you might want to consider using an external object that lives outside of EJB and triggers events on a periodic basis. If you need access to that object you might want to create an RMI object, and deploy it into the orion JNDI tree so you can have access to it from EJB. -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Magnus HoemSent: Monday, January 28, 2002 3:33 AMTo: Orion-InterestSubject: IllegalStateExceptionHi!I have a strange problem which I can't find a solution to. I am running a system with a two message-driven beans and a couple of entity beans. They are all listening to (and able to publish messages to) the same Topic. One of the entity beans contains a Timer with a couple of TimerTasks that publish messages to the topic that tells to mdb:s to do different things. I also have a jsp that refreshes itself every couple of minutes. When the system has been up and running for a while I suddenly get a very strange error. When the self-refreshing jsp-page (or load any other jsp-page connected to the system) is loaded I get "java.lang.IllegalStateException: Transaction expired (Committed)" and a reference to the line in the jsp where I try to connect to the Home interface and run the create(), findByPrimaryKey() or findAll() methods. Does anybody know why this happens and have a sollution?I log all the messages sent to the topic, and the timer-bean keeps sending messages after the error occurs...Thanks,Magnus--Magnus Hoem[EMAIL PROTECTED]Phone: +46-8-343206Cell: +46-733-343206
RE: javax.naming.NameNotFoundException
Well, from CMSAuthorisationEJB, the ejb-ref-name is CMSUsersEntityEJB but in your code you are using CMSUsersEntityEJBHome (CMSAuthorisationEJBClass.java). -AP_ -Original Message- From: Chris Francis [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 23, 2002 4:39 AM To: 'Alex Paransky'; Orion-Interest Cc: Chris Francis Subject: RE: javax.naming.NameNotFoundException OK here's some of the relevant files. Lookups are fine from the web service but I included web.xml aswell... ejb-jar.xml does include the ejb-ref tags. I also deploy an application-client.xml. Maybe I shouldn't do this? Chris. -Original Message- From: Alex Paransky [mailto:[EMAIL PROTECTED]] Sent: 23 January 2002 00:14 To: Orion-Interest Cc: [EMAIL PROTECTED] Subject: RE: javax.naming.NameNotFoundException Yes, you do (bean to bean as well) Show some code of how you are trying to lookup the bean, and something from your deployment descriptor (ejb-jar.xml)... -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chris Francis Sent: Tuesday, January 22, 2002 7:55 AM To: Orion-Interest Subject: RE: javax.naming.NameNotFoundException I meant within the session tag in ejb-jar.xml I shouldn't need something like the following: ejb-ref ejb-ref-nameblah/ejb-ref-name ejb-ref-typeEntity/ejb-ref-type homeblahHome/home remoteblahEJB/remote /ejb-ref I should only need this if I'm trying to refer to an EJB in a different jar file? I might then need the ejb-link tag aswell. But anyhow, I did put these in just to check, but it didn't make any difference. I guess I didn't explain things very well below. The beans all work, I can look them all up and use them from the associated web application and Orion doesn't grumble about anything on start up. It's only the bean to bean lookup that fails. This is why I'm confused as to what is going on. Chris. -Original Message- From: Magnus Rydin [mailto:[EMAIL PROTECTED]] Sent: 22 January 2002 12:00 To: Orion-Interest Subject: SV: javax.naming.NameNotFoundException Hi Chris, You only need a application-client.xml for your application-clients. Your EJBs DO want to have references to any resources they are to use in their ejb-jar.xml entries. Why did you NOT put them there (ie what are you refering when you say that you dont need to) ? WR -Ursprungligt meddelande- Från: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]För Chris Francis Skickat: den 22 januari 2002 12:21 Till: Orion-Interest Ämne: FW: javax.naming.NameNotFoundException Hi All, I'm tearing my hair out trying to get this to work. I have a couple of entity beans and a session bean. Everything deploys OK. The session needs to access the two entities. I've seen the examples but they look to be the same as what I've got. The ejb's are not in a jar but all live in the same package hence directory. This means I shouldn't need ejb-ref tags within my ejb-jar.xml, and I shouldn't need a application-client.xml at all. However, it appears to make little difference as to whether they are there or not. So it's something else. The only thing is, I've run out of ideas! Anyone out there suggest something? Chris.
RE: Client access to UserTransaction
Transactions on the client are an optional feature which Orion chooses not
to support. In general, client transactions are dangerous since they could
lock up the server for a long time. Instead of doing client transactions,
create a session bean, and wrap that with the transaction attribute of your
choice.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Shawn Pourchot
Sent: Wednesday, January 23, 2002 11:08 AM
To: Orion-Interest
Subject: Client access to UserTransaction
I sent this to support but maybe someone on this list has already come
across this problem:
I'm having problems getting the UserTransaction for external clients. The
following is basically how I'm trying to get at it:
env.put(Context.PROVIDER_URL,"ormi://localhost/app");
Context ctx = new InitalContext(env);
UserTransaction ut =
(UserTransaction)ctx.lookup("java:comp/UserTransaction");
I've noticed via running the console ("java -jar orion.jar -console") that
the local server does have a UserTransaction listed for my app, but the
"ormi//localhost/app" does not. Is there a way to remotely get a hold of
the UserTransaction?
FW: Integrating LOG4J into Orion...
One more time, the last one did not show up -Original Message- From: Alex Paransky [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 11:09 AM To: Orion-Interest Subject: Integrating LOG4J into Orion... I have a full EJB/JSP application running with Orion. Is there a preferred method of initializing LOG4J in this situation? Looking at the LOG4J documentation, they mention using a startup servlet to do the initialization. I am concerned as to how this would work with the CLASSLOADER hierarchy. If I initialize my LOG4J at the servlet (WEB) layer, will the EJB's be able to see the initialized LOG4J or will they attempt to re-initialize due to the different classloader? Thanks. -AP_
RE: can't figure out this one. need help: logging, reloading custom usermanager class
Can you be a little bit more specific as to what is not working? I just
spend 2 days trying to get EJBUserManager to work, and I am happy to report
that I was successful. I assume your functions are getting called, so you
have properly registered your user manager is the orion-application.xml.
What specifically is not working?
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jesse Schoch
Sent: Friday, January 11, 2002 11:21 AM
To: Orion-Interest
Subject: can't figure out this one. need help: logging, reloading custom
usermanager class
ok so i tried to write a custom usermanager but it will not work and will
not give me any clue as to why. I have followed the directions on the
support site, and have turned on -verbosity 10, i think i may have had it
wrong the first time i compiled it but i don't know how to find out what
version of my class i am using.
Is there a way to see the date of the class file that's loaded? how do you
insure that it is reloaded? i've done touch application.xml web.xml and
every other xml that i can think of.
here is my code. it compiles fine, and this is from my active login system
so i'm pretty sure the code works. how do i get the damn logging to work?
System.out.println() does not show up on my logs or STDOUT from running
orion.jar
package jesse;
import java.util.*;
import com.orionsupport.security.SimpleUserManager;
import java.sql.*;
import java.io.*;
import javax.sql.*;
import javax.naming.*;
//
// fuck some shit up with da user manager.
//
public class uM extends SimpleUserManager
{
private Map users = new HashMap();
protected boolean userExists( String username )
{
boolean result = false;
try
{
Context ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup(jdbc/mysql);
Connection con = ds.getConnection();
Statement st = con.createStatement();
Statement st2 = con.createStatement();
String q = select count(*) from stamps.users where
username='+username+';
ResultSet rs = st.executeQuery(q);
int test = rs.getInt(1);
if (test == 1)
{
result = true;
}
if (result){}
else {System.out.println(user: +username+ does not
exist\n);}
con.close();
}
catch (SQLException e)
{System.out.println(SQL error: +e);}
catch (NamingException er)
{System.out.println(jndi naming error+ er);}
return result;
}
protected boolean checkPassword( String username, String password )
{
boolean result = false;
try
{
Context ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup(jdbc/mysql);
Connection con = ds.getConnection();
Statement st = con.createStatement();
Statement st2 = con.createStatement();
if (userExists(username))
{
String q = select password user_id from stamps.users where
username='+username+';
ResultSet rs = st.executeQuery(q);
while (rs.next())
{
String u = rs.getString(2);
String p = rs.getString(1);
String q2 = select password('+password+');
ResultSet rs2 = st2.executeQuery(q2);
rs2.next();
String enpass = rs2.getString(1);
if (p.equals(enpass))
{
result = true;
users.put(username,u);
}
}
}
if (result){}
else {System.out.println(user: +username+ failed pass check\n);}
con.close();
}
catch (SQLException e)
{System.out.println(SQL error: +e);}
catch (NamingException er)
{System.out.println(jndi naming error+ er);}
return result;
}
protected boolean inGroup( String username, String groupname )
{
return true;
}
protected String getUID(String username)
{
String result = (String)users.get(username);
return result;
}
}
RE: deploying ejb without jar'ing
Yes you can, 1. Configure an application deployment at directory app with app/META-INF (I'll call my app directory app for this example) 2. Inside of app/META-INF/application.xml add your ejb module, let's call it model 3. Create a directory app/model 4. Create a directory app/model/META-INF and put ejb-jar.xml in it 5. Update orion-application.xml and put a librarty path=path to your classes pointing to where your EJB classes live Follow standard procedures to deploy an application (i.e. updating server.xml etc...) -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Morten Wilken Sent: Wednesday, January 09, 2002 1:10 AM To: Orion-Interest Subject: deploying ejb without jar'ing im sure ive come across this... can i deploy ejb's directly from a filestructure instead fo jarring them first? and if so how? sincerely Morten Wilken
RE: Help!
Title: Message Most likely, your .jsp page is too large. I think there is a limit of 64K per method, and since the JSP page all get's generated into a single method, you might be exceeding that. Try using dynamic includes instead of static includes, or if you are not using includes at all, try to break up the page and use dynamic includes. -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of NihilistSent: Wednesday, January 09, 2002 6:41 AMTo: Orion-InterestSubject: Help! Can anybody explain this error to me: Error parsing JSP page /process/index.jsp Error creating jsp-page instance: java.lang.VerifyError: (class: __jspPage1_process_index_jsp, method: _jspService signature: (Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V) Illegal target of jump or branch It can't be replicated on a consistent basis, it seems to pop up, then go away, all by itself. And that's disturbing... Gotta be able to trust the app server! Thanks, Michael -Michael LaccettiDeveloper, Eldan Software[EMAIL PROTECTED]
How to get target page on the loginError page...
After the user has entered improper login information, I want the loginError page to contain a link to the page that the user was going to along with all the necessary parameters. Is there a way to get this target information from the errorPage and generate a link? I am trying to avoid having the user to press the back button to attempt re-login again. Thanks. -AP_
Best way to add user records to EJBUserManager...
I am using EJBUserManager for security in Orion. What is the best way to update users? Should I directly use EJBUser EJB or use the API's in the UserManager. If UserManager is the answer, then how do I get access to it while running in Orion? Thanks -AP_
Using RMI objects with Orion...
In one instance, I have created an RMI object (extending Remote and using
RMIC to compile), put it into the Orion hosted JNDI tree, and was able to
use it from a SessionObject running in Orion.
In another instance, I need Orion to callback onto my client. So I
created another RMI object in the client (so the client is acting as a
server, in a way):
Remote:
public interface EventListener extends Remote {
public void event(int status) throws RemoteException;
}
Implementation (in the client side):
public class Listener extends UnicastRemoteObject implements EventListener {
public Listener() throws RemoteException {
}
public void event(int status) {
System.out.println(Event: + status + recevied on the client!);
}
};
Attempting to call server (session is Stateless Session Bean) from client:
session.play(1, content.mpg, new Listener());
Trying to pass this RMI object from the client to the server I get the
following exception:
Exception in thread main com.evermind.server.rmi.OrionRemoteException:
Error (de-)serializing object: __Proxy0
at com.evermind.server.ejb.EJBUtils.cloneObject(.:352)
at
ControlSession_StatelessSessionBeanWrapper0.play(ControlSession_StatelessSes
sionBeanWrapper0.java:101)
at java.lang.reflect.Method.invoke(Native Method)
at com.evermind._dr._fm(.:79)
at com.evermind._bs.run(.:62)
at connection to individualmusic.com/64.172.193.203 as admin
at
com.evermind._dn.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(.:1446)
at com.evermind._dn.invokeMethod(.:1369)
at com.evermind._yd.invoke(.:53)
at __Proxy2.play(Unknown Source)
at com.indnet.enseo.server.test.Client.main(Unknown Source)
Nested exception is:
java.io.NotSerializableException: __Proxy0
at java.io.ObjectOutputStream.outputObject(Unknown Source)
at java.io.ObjectOutputStream.writeObject(Unknown Source)
at com.evermind.server.ejb.EJBUtils.cloneObject(.:340)
at
ControlSession_StatelessSessionBeanWrapper0.play(ControlSession_StatelessSes
sionBeanWrapper0.java:101)
at java.lang.reflect.Method.invoke(Native Method)
at com.evermind._dr._fm(.:79)
at com.evermind._bs.run(.:62)
at connection to individualmusic.com/64.172.193.203
at com.evermind.server.rmi.OrionRemoteException._ge(.:130)
at com.evermind._dn._cte(.:1556)
at com.evermind._dn.run(.:475)
at java.lang.Thread.run(Thread.java:484)
Any idea?
Thanks.
-AP_
Various levels of security, how do you do it?
We are in a process of developing an application, and are looking for ways to implement security, we have the following requirements: 1. There are operations that certain members cannot perform in general 2. There are operations that certain members cannot perform relative to an object (owner vs non-owner) What are some of the mechanims that you are using to deal with these problems. I assume, in the first case you can use deployment descriptor. Also isInRole query can be made to determine if particular option should be shown to the user during the .JSP processing. The second option is a bit more difficult to implement, since a particular user can be an owner of some objects but not others. How can this requirement be implemented? Thanks. -AP_
RE: 1.5.3 is out, but what is so new?
These are really MINOR changes for 4 months of development. I have reported a pretty serious bug (#599) with stack traces, and instructions on how to duplicate, and that's not fixed. For all this time, these changes seem superficial. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Russell White Sent: Wednesday, October 17, 2001 6:11 AM To: Orion-Interest Subject: 1.5.3 is out, but what is so new? I am somewhat disapointed in the new release. My EJB 2.0 local interfaces are still not supported. Bummer. Still at least there are some bug fixes. __ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com
RE: problem using primary key class with orion
And if you are using EJB 2.0 style CMP, hopefully, the primaryKey is defined as: public abstract String getPrimaryKey(); public abstract void setPrimaryKey(String key); or as a public String primaryKey; in a 1.0 style CMP. Methods. Right? -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jack C. Miller Sent: Thursday, October 11, 2001 2:32 PM To: Orion-Interest Subject: problem using primary key class with orion I am having some difficulty getting orion to use my primary key class during deployment. I have an EJB AnyPerson with which I use a primary key class AnyPersonKey that has a public java.lang.String primaryKey field. During deployment, I get a compilation error that looks like the CMP isn't being generated properly. The orion-ejb-jar.xml file looks fine, as does the ejb-jar file. I get this error on deploy: Auto-deploying kwu-ejb.jar (Classes were updated)... Error compiling C:\orion\applications\kwu-phase-2\kwu-ejb.jar: Incompatible type for prim-key-class and type of the specified primkey-field: Cannot convert from class com.kw.kwu.model.AnyPerson.AnyPersonKey to class java.lang.String It doesn't seem to recognize that I'm using a primary key class at all, even though it is mapped in the orion-ejb-jar.xml file. Has anyone got a working example of this? I'm tired of tweaking the orion-ejb-jar to try and get it working. Here's a snippet from my orion-ejb-jar.xml: enterprise-beans entity-deployment name=AnyPerson location=AnyPerson wrapper=AnyPersonHome_EntityHomeWrapper45 max-tx-retries=3 table=AnyPerson data-source=jdbc/SQLServerDSCore primkey-mapping cmp-field-mapping fields cmp-field-mapping name=primaryKey persistence-name=primaryKey / /fields /cmp-field-mapping /primkey-mapping cmp-field-mapping name=FirstName persistence-name=FirstName / cmp-field-mapping name=LastName persistence-name=LastName / cmp-field-mapping name=Salutation persistence-name=Salutation / cmp-field-mapping name=Username persistence-name=Username / cmp-field-mapping name=Password persistence-name=Password / cmp-field-mapping name=Address1 persistence-name=Address1 / cmp-field-mapping name=Address2 persistence-name=Address2 / cmp-field-mapping name=City persistence-name=City / cmp-field-mapping name=StateProvId persistence-name=StateProvId / cmp-field-mapping name=PostalCd persistence-name=PostalCd / cmp-field-mapping name=Country persistence-name=Country / cmp-field-mapping name=HomePhone persistence-name=HomePhone / cmp-field-mapping name=Fax persistence-name=Fax / cmp-field-mapping name=Email persistence-name=Email / cmp-field-mapping name=LastModTime persistence-name=LastModTime / cmp-field-mapping name=ModifiedBy persistence-name=ModifiedBy / and the matching ejb-jar.xml file: ejb-jar descriptionGenerated deployment descriptors/description enterprise-beans entity ejb-nameAnyPerson/ejb-name homecom.kw.kwu.model.AnyPerson.AnyPersonHome/home remotecom.kw.kwu.model.AnyPerson.AnyPerson/remote ejb-classcom.kw.kwu.model.AnyPerson.AnyPersonBean/ejb-class persistence-typeContainer/persistence-type prim-key-classcom.kw.kwu.model.AnyPerson.AnyPersonKey/prim-key-class reentrantfalse/reentrant cmp-fieldfield-nameprimaryKey/field-name cmp-fieldfield-nameFirstName/field-name/cmp-field cmp-fieldfield-nameLastName/field-name/cmp-field cmp-fieldfield-nameSalutation/field-name/cmp-field cmp-fieldfield-nameUsername/field-name/cmp-field cmp-fieldfield-namePassword/field-name/cmp-field cmp-fieldfield-nameAddress1/field-name/cmp-field cmp-fieldfield-nameAddress2/field-name/cmp-field cmp-fieldfield-nameCity/field-name/cmp-field cmp-fieldfield-nameStateProvId/field-name/cmp-field cmp-fieldfield-namePostalCd/field-name/cmp-field cmp-fieldfield-nameCountry/field-name/cmp-field cmp-fieldfield-nameHomePhone/field-name/cmp-field cmp-fieldfield-nameFax/field-name/cmp-field cmp-fieldfield-nameEmail/field-name/cmp-field cmp-fieldfield-nameLastModTime/field-name/cmp-field cmp-fieldfield-nameModifiedBy/field-name/cmp-field primkey-fieldprimaryKey/primkey-field /entity Thanks! Jack Miller
RE: How to access Orion EJBs from C++ ?
There is no direct way that I know of, however, there are a lot of indirect ways. For example: 1. Wrap a JSP/XML layer around the beans, so that you can submit requests via http, this providing a WEB service type of an approach to your interface. You can then use HTTP from C to execute calls. 2. Wrap your stateless session beans with a CORBA wrapper using a TIE approach, then you can use CORBA to interface to the beans. 3. You can always use JNI to start a runtime in your C environment, and proceed to call various functions, kind of cumbersome, but possible if you need to do this. Quite frankly, I prefer method (1), since after you are done with it, you can use the services from different environments including Visual Basic, C/C++. We are using the above mechanism as an interface from Flash, since our client is written in Flash and we need to talk to our EJB services. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of J.D. Bertron Sent: Thursday, October 04, 2001 5:30 AM To: Orion-Interest Subject: How to access Orion EJBs from C++ ? Sensitivity: Private I need a way to access my EJBs on Orion using C++. Normally I would try RMI over IIOP, but Orion doesn't support that. Should I look into OC4J ? Thanks.
RE: Help with HTTP Internal Server Error
Disable IE's friendly error messages, then you should see a stack trace... -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, October 04, 2001 7:09 AM To: Orion-Interest Subject: Help with HTTP Internal Server Error Hi I'm getting a HTTP 500 Internal Server error when I try to access one of my JSP pages. The following is written to the web-access.log file, but no other errors are reported anywhere. GET /budgeting/Test?event=accountSummaryaccType=SAVNG HTTP/1.1 500 482 Does the 482 at the end mean something or is there anywhere else where I could get more information about the error. Just to make things interesting, the page works fine if I run it through Tomcat. Thanks Derek Hardy E-mail communication is not secure and may be intercepted by a third party. This message is confidential to the intended addressee. If you are not the intended addressee, please inform us immediately and then delete this message. Virgin Direct does not accept responsibility for changes made to this message after it was sent. Although Virgin Direct believes this e-mail is free of any virus or other defect which may affect a computer, it is the responsibility of the recipient to ensure that it is virus free and Virgin Direct does not accept any responsibility for any loss or damage arising in any way from it's use. Virgin Direct Personal Financial Service Ltd is regulated by the Personal Investment Authority for life insurance, pension and unit trust business and represents only the Virgin Direct marketing group. Registered office: Discovery House, Whiting Road, Norwich NR4 6EJ, UK. Registered in England No. 3072766. The Virgin One account is a secured personal bank account with The Royal Bank of Scotland plc. It is provided by Virgin Direct Personal Finance Ltd which is a representative only of Virgin Direct Personal Financial Service Ltd. Registered office: Waterhouse Square, 138-142 Holborn, London EC1N 2TH, UK. Registered in England no 3414708. The Virgin Deposit Account is a personal deposit account with The Royal Bank of Scotland plc administered by Virgin Direct Personal Financial Service Ltd. All telephone calls are recorded and may be monitored.
RE: EJB Primary Key of int
User Integer... -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Marc Rabil Sent: Thursday, October 04, 2001 1:56 PM To: Orion-Interest Subject: EJB Primary Key of int I can not figure out how to get Orion's EJB CMP to work when the primary key is an 'int'. In the deployment descriptor (ejb-jar.xml), the code is: prim-key-classint/prim-key-class When starting up Orion, I get: Class 'int' not found Any help will be greatly appreciated, Marc
RE: OR mapping (1/* relationship between 2 entity beans)
Orion is pretty good as far as keeping the relationships in
orion-ejb-jar.xml current. We have not been using BMP, but mostly 2.0 style
CMP, and this particular area has been working for us without a flaw.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of George Mardale
Sent: Wednesday, October 03, 2001 2:18 AM
To: Orion-Interest
Subject: OR mapping (1/* relationship between 2 entity beans)
Hello everyone,
I have an OR mapping that involves 2 entity beans, named Group and User,
like in the following example:
public class GroupBean implements EntityBean
{
...
List users;
public addUser(User user)
{
users.add(user);
}
}
So, I have an 1/* relationship.
What I want to know is what modifications do I have to made to
orion-ejb-jar.xml to reflect this OR mapping? On the orionsupport site,
there are 2 example for advanced OR mapping, one involving a relationship
between 2 entity bean, but in an one/one relationship (one entity bean has
as an attribute other entity bean, not a list of them), and one involving a
relationship between an entity bean and a regular JavaBean (not an entity
bean). I tried to combine those two to solve my situation, but it didn't
worked out.
If you are kind enough to give me an example, I will greatly appreciated.
Thanks for listening,
George.
RE: Design strategy
Yes, I have noticed the same behavior in 2.0 CMP style beans. What I have
been doing is simply alerting orion-ejb-jar.xml, and changing one of the
tables into another one. So, instead of 2 tables, there is actually 1
table. I am not sure, if this is working correctly during transaction, in
other words, I think orion still keeps two separate relationships in memory
until a commit is done. So GroupBean.add(user), will not find group in
the user entity until a commit and update to the relational table. This
is somewhat frustrating and I am hoping will get fixed with the next release
of Orion (not clear when that will happen since we have not seen any updates
for over 9 months now!).
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of George Mardale
Sent: Wednesday, October 03, 2001 5:49 AM
To: Orion-Interest
Subject: Re: Design strategy
Hello Daniel,
What I said about those 2 tables, was strictly Orion-related. You are right,
in designing relational databases, a n-m relationship will be normalized by
introducing 1 (one) table and two 1-n relationships between the existing 2
tables (Group, User) and the new one (let's say GroupUser). Thus, we will
avoid redundancy.
In Orion, as far as I know, if I use something like this:
public class GroupBean
{
...
List users;
...
}
public class UserBean...
{
...
List groups;
}
to simulate a *-* relationship, Orion will create, by OR mapping, a table
for my first 1-* relationship Group-User (let's say the table is named
Group_users) and another table for my other 1-* relationship User-Group
(let's say the table is named Users_group). Of course, these 2 tables
(Group_users and Users_group) are identical, but I think Orion will not know
that these two 1-n relationships represent in fact one n-m relationship.
Please be advised that his is only my supposition about Orion. I don't know
if I'm right about this one but I'll be glad if someone can clarify this
issue for me. I was trying to find out for some days, how Orion handles *-*
relationships, but I wasn't lucky to find something useful.
best regards,
George.
- Original Message -
From: Daniel Lopez [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Tuesday, October 02, 2001 5:04 PM
Subject: Re: Design strategy
Hi George,
I don't know about EJB, as we don't use them, but having an extra table to
represent an n-m relationship is a well stablished technique when
designing
relational databases. AFAIK there's no other way to do that while
providing
db-enforced consistency and avoiding redundancy. You represent a logical
n-m
relationship, you create a new table that implements two real 1-n
relationships,
thus creating one extra table. I don't see where you get two extra tables
per
relationship from.
regards,
D.
George Mardale wrote:
Hello Owen,
Thank you for your kind response. Yesterday, while waiting for a
response on
the Orion mailing list, we thought of a design somehow close to yours.
We
thought that using 3 different tables (ClassRoles, GroupRoles,
UserRoles)
was a good ideea.
But today, we came up with a solution that we thought would benefit of
Orion's powerful features. Thanks to Alex Paransky who helped us a lot,
we
tried to redesign the system, using OR mapping. So, we designed
something
like this:
public class GroupBean implements EntityBean
{
...
List users; //1..* relationship with UserBean
}
public class UserBean implements EntityBean
{
List groups; //1..* relationship with GroupBean
}
Practically, we broke every *..* relationship (in this case Group(*) -
User(*)) into two 1..* relationships. And so on, for every relationship
that
we have:
Class(1) - Group(*)
User(*) - Role(*)
Group(*) - Role(*)
Class(*) - Role(*)
As far as I know, Orion will create an additional table in the database
that
will store the relationship. For example, for users attribute in
GroupBean,
it will create a new table Group_users, besides the existing Group and
User
tables. Practically, for every *-* relationship will have 2 more tables
in
the database. Is that correct?
What I want to know is if this design is correct. Are there any
drawbacks
that would make this system work unproperly (may be some OR mapping
problems)?
Tkanks,
George.
- Original Message -
From: Owen Fellows [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Tuesday, October 02, 2001 10:58 AM
Subject: RE: Design strategy
Hello,
We have done a similar thing were we don't know the type of class
assign
the
role except at runtime.
The solution we used was to have an Object Type table (contain Class,
Group,
User).
Then created a interface which was Roleable (i.e. this class can have
a
role
assigned).
In the database you can store each assignment in a different table
RE: Design strategy
1) It seemed to me that a class was merely a container of N groups. From your example, it seems that group (chemistry professor) was just a sub-group of a group called (Professor). In other words: Professor | +-- Chemistry Professor I was not aware of other fields in the Class, and this was the reason for the suggestion. Since you can still attach roles to the groups, from the example above Chemistry Professor could inherit the roles from the Professor Group 2) You can use standard many/many relationships for this. I have had limited success with this. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of George Mardale Sent: Monday, October 01, 2001 10:06 PM To: Orion-Interest Subject: RE: Design strategy Hello Alex, Thank you for your prompt response. Your suggestions are excellent. You're right, the analysis is not correct. I tried to reduce the problem to a simple example. To avoid complexity, I just limited the relationships to 1..*. Maybe the example is not the best, but I only wanted to know if I could model the Abstract being bean in Orion. There are still 2 issues we are unclear about: 1. what are the advantages of dumping entity Class? (Class has specific fields that Group does not have) 2. could you please detail the best way to implement a *-* relationship in Orion? Thanks, George.
ejbLoad is getting called during a transaction
I have a piece of code that looks like this: debug(Before); for (int i = 0; i values.length; i++) programValueEntityHome.create(us, attribute, values[i]); debug(After); For some reason an ejbLoad is sneaking into the picture. As you can see from the following output, when Before prints the size of certain collection 1 (because I just added something to it), then before the ejbCreate is called in responce to programValueEntityHome.create(...) an ejbLoad sneaks in. The ejbLoad, clears the collection again because it refreshes from disk. Now during the operation and after, the collection remains EMPTY. Before Object: ProgramEntityBean_PersistenceManager812@5bfb5d values collection: [com.indnet.common.model.base.EntityKey@268 id: 616] size: 1 ejbLoad: ProgramEntityBean_PersistenceManager812@5bfb5d During create of value Object: ProgramEntityBean_PersistenceManager812@5bfb5d values collection: [] size: 0 After Object: ProgramEntityBean_PersistenceManager812@5bfb5d values collection: [] size: 0 Does any one have any ideas why would an ejbLoad sneak in? The entire operation is done in a single transaction. I am puzzled as to why this might be happening? This all is occuring during the create operation here is a stack trace when excpetion occurs because the collection is EMPTY: javax.ejb.EJBException: Attribute: Actors not a valid attribute for program: 3971 at com.indnet.symbiosis.model.entity.program.ProgramEntityBean.setValues(Progra mEntityBean.java:344) at com.indnet.symbiosis.model.entity.program.ProgramEntityBean.createDefaultVal uesFor(ProgramEntityBean.java:196) at com.indnet.symbiosis.model.entity.program.ProgramEntityBean.addProgramType(P rogramEntityBean.java:157) at com.indnet.symbiosis.model.entity.program.ProgramEntityBean.ejbPostCreate(Pr ogramEntityBean.java:63) at ProgramEntityHome_EntityHomeWrapper813.create(ProgramEntityHome_EntityHomeWr apper813.java:806) at com.indnet.symbiosis.service.programmanagement.ProgramManagementServiceBean. createProgram(ProgramManagementServiceBean.java:50) at ProgramManagementService_StatelessSessionBeanWrapper26.createProgram(Program ManagementService_StatelessSessionBeanWrapper26.java:70) at com.indnet.symbiosis.client.jsp.admin.programadmin.pagegen.beans.ProgramCrea teBean.initialize(ProgramCreateBean.java:106) at com.slsideas.pagegen.beans.Bean.processRequest(Bean.java:106) Thanks. -AP_
RE: Design strategy
I am not sure if your analysis is quite correct. The Group(1)-User(*) relationship is not quite correct, since User might want to be in two groups at the same time. For example, John can be in the group of Chemistry Professor, as well as Substitute Teacher. Your relationship implies that a user can ONLY be in 1 group. Similarly, your relationships to the Role imply that the same Role cannot be shared among various entities. In fact, most of the relationships are N-to-N type of relationships. A User CAN be in more than one Group, and the same Role CAN be applied to more than 1 User/Group. So here is my suggestion: 1. Dumpeither Class or Group 2.Assuming you dump Class, add a parent/children relationships to Group as inGroup(1)-Group(*), to indicate that one parent group can contain multiple children groups. 3. Add a Group(*)-Role(*) relationship to indicate that a group can have many roles and a single role can be in many groups 4. Add a User(*)-Role(*) relationship to indicate that a user can have multiple roles, and a role can accommodate many users 5. Finally, add a Group(*)-User(*) relationship to indicate that a user can be a part of many groups and a group can contain many users Your Group will contain a method called getRoles() as well as getAllRoles() which would scan up the Group tree and return a set of all the Roles assigned. Finally, your user would have a method called getRoles() and getAllRoles() to return just the roles assigned directly to the user, or all the roles that the user has access to through the assignment to a Group(s) or otherwise. You can also keep a side entity called UserRole which would be maintained as you change the Group/User/Role relationships dynamically. This will allow you to quickly answer the question isInRole(User, Role). This can be done with OrionServer. -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of George MardaleSent: Monday, October 01, 2001 8:29 AMTo: Orion-InterestCc: [EMAIL PROTECTED]Subject: Design strategy Hi everybody, During our last application design, I have encountered the following issue and I don't know ifOrion can handled it in a specific manner: I have a hierarchy of users that consists of 3 levels: Class, Group, User. A class can contain one or more groups, a group can contain one or more users. For instance, an instance of Class can be "professor", an instance of Group can be "chemistry professor", and an instance of User can be "John" (John is a chemistry professor). We have 1..* relationship for each of the 3 levels. Of course, theseare entity beans. Furthermore, we have another entity bean, called Role. The ideea is that every User canhave a Role in an application (for instance, John can be a SystemAdmin inan application), but also, a Group or a Class canhave one or moreRoles (instead of assigning a Role to every User in a Group or a Class, we assign the Role to the whole Group or Class,saving a lot of time this way, thus all the User in the respective Group or Classwill have that Role). For all the Roles, we need to keepthe id of the person(s) to whomthe Role was assigned.But only at run-time Ican find out the type of the component in the user hierarchy (either Class, Group, or User), to which the rolehas beenassigned.In other words, an attribute in class Role has to store a value that is sometimes an instance of Class, sometimes an instance of Group and sometimes an instance of User. Analyzing this issue, we came along with this diagram: 1 * Abstract being -- Role | inherits -- | | | | | | Class Group User 1--- * 1- * How can we achieve this in Orion? Is it possible? Thank you for your time, best regards, George.
RE: STRANGE (and BIG!!!) PROBLEM
Try this: java -Xmx128M -Dcom.slsideas.pagegen.SystemRoot=. -jar %ORION_HOME%\orion.jar -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of OMurchu, OisinSent: Thursday, September 27, 2001 12:53 AMTo: Orion-InterestSubject: RE: STRANGE (and BIG!!!) PROBLEM check in the orion-application.jar file in your application-deployments\APP_NAME directory - I tend to get multiple library path="./lib" / tags in it, which causes Orion to hang. (Orion adds these into tags in itself upon deployment for some strange reason.) -Original Message-From: Magnus Rydin [mailto:[EMAIL PROTECTED]]Sent: 26 September 2001 20:17To: Orion-InterestSubject: SV: STRANGE (and BIG!!!) PROBLEM My bet is that you have something strange in your ejb-jar.xml that causes Orion to start eating memory like popcorn. It would be great to hear the typo that led to this situation once you've found it. WR -Ursprungligt meddelande-Från: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]För Mirel RataSkickat: den 26 september 2001 18:50Till: Orion-InterestÄmne: Re: STRANGE (and BIG!!!) PROBLEM It's a little bit strange... I'm implementing security on my application and customizing my xml descriptors. All went ok (I had Basic Authentication) and I wanted to implement security also in the EJBs methods. I change the ejb-jar.xml source and this text appears : Auto-deploying UbicuaCMP.jar (Classes were updated)... The compiler has run outof memory. Consider using the "-J-mxnumber" command line option to increase the maximum heap size.Error compiling D:\Orion155\ubicua/UbicuaCMP.jar: Syntax error in sourceOrion/1.5.2 initialized I work with 512MB memory... so I don´t think is a problem of lack of memory... I try to use also the "-J-mxnumber" command but it doesnt work !. Can anybody explain where and how works this command ? (a sample example will be wellcomed !)
RE: External EJB Client
Make sure your default directory (the directory you are in) is JUST above
the META-INF where the application-client.xml resides. So if you are in the
default directory, and do a ls or DIR you will see META-INF. Then, start
your client from this directory regardless of where the client is located.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Ed Brown
Sent: Monday, August 27, 2001 8:44 PM
To: Orion-Interest
Subject: External EJB Client
I'm trying to call an EJB from outside of the Orion enviornment.
I get the following stack trace:
javax.naming.NamingException: META-INF/application-client.xml resource not
found
at
com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext
(JAX)
at
javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668)
at
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246)
at javax.naming.InitialContext.init(InitialContext.java:222)
at javax.naming.InitialContext.init(InitialContext.java:198)
at
com.ekb.email.ReceiptMailServer.getContext(ReceiptMailServer.java:62)
at com.ekb.email.ReceiptMailServer.init(ReceiptMailServer.java:85)
at com.ekb.email.ReceiptMailServer.main(ReceiptMailServer.java:224)
-
I'm using ant to build and deploy. I defined the following in the build.xml
file:
target name=ejb-meta-inf depends=prepare
copy file=${etc.dir}/ejb-jar.xml
tofile=${lib.dir}/ejb/META-INF/ejb-jar.xml /
copy file=${etc.dir}/application-client.xml
tofile=${lib.dir}/ejb/META-INF/application-client.xml /
/target
Does anyone know why I'm still getting the exception?
Thanks in advance.
Ed Brown
_
This mail sent via toadmail.com, web e-mail @ ToadNet - want to go fast?
http://www.toadmail.com
RE: List rant (was RE: Virtual DirecTory -- Help)
You are missing the point. The list is broken most of the time. You send your message at 6:21am, I get it at 7:32am. More than 1 hour later. Sometimes, I get at 2 hours later, 20 hours later, 24 hours later. Many times I don't get it at all. What good is it to have a list that you cannot rely on. If you have a problem which needs addressing fast, you don't want to wait for 24 or 48 hours while the list sends the question to all the people. Sometimes, it does not send at all. So many of us have been making 1, 2, 3, or more postings to the list, just to PUSH the damn message through. Furthermore, I hate having to type a long detailed response, only to not have it go through on the list. It's a waste of my time. So, I think, this list should be closed, and people redirected to the Yahoo list. By the way, I just posted to the Yahoo list and I see the message in my mail box 3 minutes later. That's response time! -AP_ PS: Let's see how long it takes this message to get propagated. It's Sunday, August 26th, 2001 8:28am PST. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Hani Suleiman Sent: Sunday, August 26, 2001 6:21 AM To: Orion-Interest Subject: List rant (was RE: Virtual DirecTory -- Help) I have to add my voice to this. This is just an example of the problems that can happen when a lot of well meaning and eager people do what seems to be a good idea, yet turns out to do nothing beyond make the problem they're trying to fix even worse. The people who end up suffering are those who need actual help with Orion, as every new mailing list further dilutes the pool of competent knowledgable people present on any given resource that can provide help. I for one will NOT be joining any orion related mailing lists other o-i, and I would go so far as asking you all to likewise resist the temptation of 'encouraging' these other lists, for the following reasons: - Any individual list is 'worth less', as it's only a subset of the community. - The barrier of entry to Orion is higher (who wants to join 4 mailing lists just to ask a simple question?) - Bias that is very likely to occur (MY support site/list/whatever is cooler/better/richer than yours!) - Turf issues. (don't crosspost to our list! Go away and ask *that* list! Oh now you come to us after you failed on *that* list?) - Same old same old. Does anyone truly think the rash of 'is Orion dead/gone/sold out' and 'have Magnus/Karl given up/died/become hermits/taken up fishing/sold out' questions that pop up every couple of months iks going to dimish? On the contrary, now you get per-list threads about the exact same thing! Wheee! Of course, feel free to ignore all this and join six orion related lists and sign up with four orion support websites. More power to you. Hani On Sun, 26 Aug 2001, Mike Cannon-Brookes wrote: Guys, I'm both for and against this new Orion list, but surely we're solving NOTHING other than creating more email if we send support messages to both lists? (Meaning everyone subscribes to both lists, everyone get's everything twice) Is there a sensible way we can resolve this? Personally I'd say use o-i when it's up, only use the egroups list when there's a problem. -mike Mike Cannon-Brookes :: [EMAIL PROTECTED] Atlassian :: http://www.atlassian.com Supporting YOUR J2EE World -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Daniele Arduini Sent: Sunday, August 26, 2001 7:14 PM To: Orion-Interest Subject: Re: Virtual DirecTory -- Help Eddie Post wrote: Hellu, I am trying to exculde my JSP files from the war file, such that the designer can easily change them without my help (withoud deployment, etc...). Anyone any idea/advice how to do that as I tried many things, but appearantly am not able to succeed ? 1. create an orion user and an orion group. 2. chown -R orion:orion /opt/orion 3. Run Orion as orion user from a shell script: ... umask 002 # IMPORTANT! cd /opt/orion java -jar orion.jar $@ ... 4. add your designer to the orion group. in /etc/group: ... orion::204:designer ... 5. use symbolic links to enable access .jsp pages from designer's home. bye, Daniele Arduini What I tried (I am running on a linux box, RedHat 7.0, Orion 1.5.1, JDK 1.3) ? - First I changed the jsp entry in my web.xml, from a relative path to a absolute path, that doesn't work, as he always starts looking from within the web application: --- servlet servlet-nameMainWebShop/servlet-name display-nameMain page of web-shop/display-name description/description jsp-file/home/development/vwr/web-client/jsp/webwinkel/html/main .jsp/jsp- file /servlet -- - I did add a virtual directoy entry in
I think, I will start a support site too....
(in style of Andy Rooney) I see everyone is starting their support sites for Orion. I think it's a poor solution for something that's broken, mainly, this mailing list. How many support sites do we actually have now? Why is it such a problem to keep the mailing list up and running? Now, we need to post the message to at least 3 places to make sure it gets maximum exposure. I think I will start a support site, that posts to all other support sites, just so that people don't have to search various support sites for help. I don't mind so many support sites starting up, I just think they are starting up for poor reasons and fragmenting what little knowledge we already have about this product. What is the problem with the list? Why is it down half the time? I hope it's not running under Orion... -AP_
RE: ORA-01000: maximum open cursors exceeded Exception
Denis, the code you were looking at was not posted by me. In the case of
ORA-01000 we have a system built entirely with CMP beans and Orion 1.5.2.
We have a program, we call the loader, which loads a number of entities into
the database after initial database refresh. It is during the execution of
the loader, that we get this error. The loader, is doing a lot of
ejbCreate() and finds to create the relationships between the entities. So
to answer your original question, there is only 1 user.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of DENNIS
STRAIGHT
Sent: Tuesday, August 14, 2001 5:45 PM
To: Orion-Interest
Subject: Re: ORA-01000: maximum open cursors exceeded Exception
Then again, it could be normal operation and we just need to increase the
number
of cursors allowed.
This is possible but I doubt it. Setting up the limit seems like a
cheap way to fix the problem... for now. How many concurrent users are
executing this code? And how long does it take for the error to occur?
I also noticed that your closing everything in its own try block inside
the finally block. Of course you realize that if the line rs.close();
for example, causes an error (because rs == null for example) then the
code would get thrown into the catch block and nothing else would get
closed. At the very least I would remove the try - catch that is inside
the finally block.
Cheers,
Dennis
Alex Paransky wrote:
We are not using any direct connections to the database. We only use CMP
beans. So there might be something wrong in the way I am using the beans,
or the could be a bug in Orion which is leaving a lot of cursors open.
Then
again, it could be normal operation and we just need to increase the
number
of cursors allowed.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of The
elephantwalker
Sent: Tuesday, August 14, 2001 10:55 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
Here's a bit of code I use alot in ejb's. The handler interface only has
one
method, processResultSet. The getDBConnection is a helper method. Notice
how
the connection, resultset and statement are closed. If these are'nt
executed
in the proper order, and within a finally clause, oracle will glorck on
you
with the 01000 error.
If you have many cmp beans, it could be that your maximum's for open
cursors
is like 50 or so. It should be up around 300. This can be modified in the
ora.ini file.
Regards,
the elephantwalker
private void executeStatement(String statement, Handler handler)
throws
RemoteException {
Connection con = null;
ResultSet rs = null;
Statement stmt = null;
try{
con = getDBConnection();
stmt = con.createStatement();
rs = stmt.executeQuery(statement);
handler.processResultSet(rs);
} catch (Exception ex){
throw new EJBException( ex.getMessage());
} finally {
try{
rs.close();
stmt.close();
con.close();
rs = null;
stmt = null;
con = null;
} catch (SQLException se){
throw new EJBException( se.getMessage());
}
}
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Kesav Kumar
Sent: Tuesday, August 14, 2001 10:26 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
This is because you have too many opened statements and Resultsets. Make
sure that you close your statements and resultsets properly. Try to debug
the jdbc activity by setting the following properties.
jdbc.debug=true
debug.jdbc.check=true
jdbc.connection.debug=true
Kesav Kumar Kolla
Voquette Inc
650 356 3740(W)
510 889 6840(R)
VoquetteDelivering Sound Information
-Original Message-
From: Alex Paransky [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 13, 2001 6:51 PM
To: Orion-Interest
Subject: ORA-01000: maximum open cursors exceeded Exception
We have been using the server more frequently now, and are getting this
exception from time to time. Does any one know why does this exception
occur and what to do about it? Could I be doing something wrong in my CMP
2.0 Entity Beans? I am using Orion Server 1.5.2.
Thanks.
-AP_
Embedded Exception -
com.evermind.server.rmi.OrionRemoteException: Database error:
at
InterestEntityHome_EntityHomeWrapper532.findExistingEntity(InterestEntityHom
e_EntityHomeWrapper532.java:54)
at
InterestEntityHome_EntityHomeWrapper532.findByPrimaryKey(InterestEntityHome_
EntityHomeWrapper532.java:269)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getValue(InterestManagementServiceBean.java:229
RE: ORA-01000: maximum open cursors exceeded Exception
It is a fairly small number of objects, but about 30 CMP's or so. At the
time we are loading general things into our database (Lookup beans) such as
Languages, States, Countries, Gender, Income, Interests, and other such
objects which later act as Lookup or relational objects. It could very
well be, that we are running out of cursors on the Oracle's side, and we
need to increase the count.
When a user is created, this is when the actual problem occurs, we are doing
ejbFinds all over the place for all of these entities. So for example, to
create a user, there would be an EJB find executed on Languages, States,
Countries, Gender, Income, Interests, and a whole bunch of other things.
How long do cursors stay open? Is Orion using cursors? When do they get
closed?
It is quite silly at this point, but we are not using transactions for our
Loads, so there is A LOT OF UPDATE/SELECT type of calls going out to the
database. I am sure, if we wrap all the loaders into a single transaction
this problem might go away.
At this point, I am not sure if I want to open a bug, since it's so
difficult to reproduce, and I am not even sure if it is a bug.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of The
elephantwalker
Sent: Wednesday, August 15, 2001 2:56 PM
To: Orion-Interest
Subject: FW: ORA-01000: maximum open cursors exceeded Exception
resend, first one didn't catch...
-Original Message-
From: The elephantwalker [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 15, 2001 12:46 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
Alex and Dennis,
This is from experience with oracle. The try/catch in the finally is
necessary for these statements, or they won't compile.
Also, it looks like Alex's problem has to do with the number of open cursors
with cmp's and orion. I would be interested in the cmp.size() for a
findAll() on this just to see what the maximum problem could be. It could be
that his maximum cursor can't handle 1000 simulataneous open cursors, even
though his application is regularly producing this activity.
If its a small number of cmp's, then Karl and Magnus need to know...its a
bug.
Regards,
the elephantwalker
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of DENNIS
STRAIGHT
Sent: Tuesday, August 14, 2001 5:45 PM
To: Orion-Interest
Subject: Re: ORA-01000: maximum open cursors exceeded Exception
Then again, it could be normal operation and we just need to increase the
number
of cursors allowed.
This is possible but I doubt it. Setting up the limit seems like a
cheap way to fix the problem... for now. How many concurrent users are
executing this code? And how long does it take for the error to occur?
I also noticed that your closing everything in its own try block inside
the finally block. Of course you realize that if the line rs.close();
for example, causes an error (because rs == null for example) then the
code would get thrown into the catch block and nothing else would get
closed. At the very least I would remove the try - catch that is inside
the finally block.
Cheers,
Dennis
Alex Paransky wrote:
We are not using any direct connections to the database. We only use CMP
beans. So there might be something wrong in the way I am using the beans,
or the could be a bug in Orion which is leaving a lot of cursors open.
Then
again, it could be normal operation and we just need to increase the
number
of cursors allowed.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of The
elephantwalker
Sent: Tuesday, August 14, 2001 10:55 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
Here's a bit of code I use alot in ejb's. The handler interface only has
one
method, processResultSet. The getDBConnection is a helper method. Notice
how
the connection, resultset and statement are closed. If these are'nt
executed
in the proper order, and within a finally clause, oracle will glorck on
you
with the 01000 error.
If you have many cmp beans, it could be that your maximum's for open
cursors
is like 50 or so. It should be up around 300. This can be modified in the
ora.ini file.
Regards,
the elephantwalker
private void executeStatement(String statement, Handler handler)
throws
RemoteException {
Connection con = null;
ResultSet rs = null;
Statement stmt = null;
try{
con = getDBConnection();
stmt = con.createStatement();
rs = stmt.executeQuery(statement);
handler.processResultSet(rs);
} catch (Exception ex){
throw new EJBException( ex.getMessage());
} finally {
try{
rs.close();
stmt.close();
con.close();
rs = null;
stmt = null;
con = null
RE: ORA-01000: maximum open cursors exceeded Exception
I am using CMP beans only, so i am not controlling any connections directly. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of DENNIS STRAIGHT Sent: Tuesday, August 14, 2001 10:55 AM To: Orion-Interest Subject: Re: ORA-01000: maximum open cursors exceeded Exception I've seen this before with my code. It has nothing to do with Orion. Make sure you are closing your Connections, Statements, PreparedStatements, CallableStatements and ResultSets. The proper place to do this is in a finally statement so the code will always get executed, even if an exception is thrown. BTW: SQL Server seems to allow you to be sloppy in closing connections. I guess (think) SQL Server somehow closes them for you. Oracle, however, does not :) -DStraight Nusairat, Joseph F. wrote: I believe u get this error when you are opening tooo many connections. (duh) In other words make sure you are closing your Statements or PreparedStatements. If you are, then check with your DBA to see how many current cursors you are allowed and see if you could get that increased. Joseph Faisal Nusairat, Sr. Project Manager WorldCom tel: 614-723-4232 pager: 888-452-0399 textmsg: [EMAIL PROTECTED] -Original Message- From: Alex Paransky [mailto:[EMAIL PROTECTED]] Sent: Monday, August 13, 2001 6:51 PM To: Orion-Interest Subject: ORA-01000: maximum open cursors exceeded Exception We have been using the server more frequently now, and are getting this exception from time to time. Does any one know why does this exception occur and what to do about it? Could I be doing something wrong in my CMP 2.0 Entity Beans? I am using Orion Server 1.5.2. Thanks. -AP_ Embedded Exception - com.evermind.server.rmi.OrionRemoteException: Database error: at InterestEntityHome_EntityHomeWrapper532.findExistingEntity(InterestEntityHom e_EntityHomeWrapper532.java:54) at InterestEntityHome_EntityHomeWrapper532.findByPrimaryKey(InterestEntityHome_ EntityHomeWrapper532.java:269) at com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea n.getValue(InterestManagementServiceBean.java:229) at com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea n.getValue(InterestManagementServiceBean.java:254) at com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea n.getTree(InterestManagementServiceBean.java:193) at com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea n.getTrees(InterestManagementServiceBean.java:202) at com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea n.getRootTrees(InterestManagementServiceBean.java:218) at InterestManagementService_StatelessSessionBeanWrapper8.getRootTrees(Interest ManagementService_StatelessSessionBeanWrapper8.java:849) at com.indnet.symbiosis.client.jsp.pagegen.services.UserMaintenanceService.init ialize(UserMaintenanceService.java:291) at com.slsideas.services.GenericServiceManager.initialize(GenericServiceManager .java:99) at com.slsideas.pagegen.contexts.ServerContext.init(ServerContext.java:197) at com.slsideas.pagegen.servlets.BaseControllerServlet.doGet(BaseControllerServ let.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:195) at javax.servlet.http.HttpServlet.service(HttpServlet.java:309) at javax.servlet.http.HttpServlet.service(HttpServlet.java:336) at com.evermind._cxb._abe(Unknown Source) at com.evermind._cxb._uec(Unknown Source) at com.evermind._io._twc(Unknown Source) at com.evermind._io._gc(Unknown Source) at com.evermind._if.run(Unknown Source)
RE: ORA-01000: maximum open cursors exceeded Exception
We are not using any direct connections to the database. We only use CMP
beans. So there might be something wrong in the way I am using the beans,
or the could be a bug in Orion which is leaving a lot of cursors open. Then
again, it could be normal operation and we just need to increase the number
of cursors allowed.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of The
elephantwalker
Sent: Tuesday, August 14, 2001 10:55 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
Here's a bit of code I use alot in ejb's. The handler interface only has one
method, processResultSet. The getDBConnection is a helper method. Notice how
the connection, resultset and statement are closed. If these are'nt executed
in the proper order, and within a finally clause, oracle will glorck on you
with the 01000 error.
If you have many cmp beans, it could be that your maximum's for open cursors
is like 50 or so. It should be up around 300. This can be modified in the
ora.ini file.
Regards,
the elephantwalker
private void executeStatement(String statement, Handler handler) throws
RemoteException {
Connection con = null;
ResultSet rs = null;
Statement stmt = null;
try{
con = getDBConnection();
stmt = con.createStatement();
rs = stmt.executeQuery(statement);
handler.processResultSet(rs);
} catch (Exception ex){
throw new EJBException( ex.getMessage());
} finally {
try{
rs.close();
stmt.close();
con.close();
rs = null;
stmt = null;
con = null;
} catch (SQLException se){
throw new EJBException( se.getMessage());
}
}
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Kesav Kumar
Sent: Tuesday, August 14, 2001 10:26 AM
To: Orion-Interest
Subject: RE: ORA-01000: maximum open cursors exceeded Exception
This is because you have too many opened statements and Resultsets. Make
sure that you close your statements and resultsets properly. Try to debug
the jdbc activity by setting the following properties.
jdbc.debug=true
debug.jdbc.check=true
jdbc.connection.debug=true
Kesav Kumar Kolla
Voquette Inc
650 356 3740(W)
510 889 6840(R)
VoquetteDelivering Sound Information
-Original Message-
From: Alex Paransky [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 13, 2001 6:51 PM
To: Orion-Interest
Subject: ORA-01000: maximum open cursors exceeded Exception
We have been using the server more frequently now, and are getting this
exception from time to time. Does any one know why does this exception
occur and what to do about it? Could I be doing something wrong in my CMP
2.0 Entity Beans? I am using Orion Server 1.5.2.
Thanks.
-AP_
Embedded Exception -
com.evermind.server.rmi.OrionRemoteException: Database error:
at
InterestEntityHome_EntityHomeWrapper532.findExistingEntity(InterestEntityHom
e_EntityHomeWrapper532.java:54)
at
InterestEntityHome_EntityHomeWrapper532.findByPrimaryKey(InterestEntityHome_
EntityHomeWrapper532.java:269)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getValue(InterestManagementServiceBean.java:229)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getValue(InterestManagementServiceBean.java:254)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getTree(InterestManagementServiceBean.java:193)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getTrees(InterestManagementServiceBean.java:202)
at
com.indnet.symbiosis.service.interestmanagement.InterestManagementServiceBea
n.getRootTrees(InterestManagementServiceBean.java:218)
at
InterestManagementService_StatelessSessionBeanWrapper8.getRootTrees(Interest
ManagementService_StatelessSessionBeanWrapper8.java:849)
at
com.indnet.symbiosis.client.jsp.pagegen.services.UserMaintenanceService.init
ialize(UserMaintenanceService.java:291)
at
com.slsideas.services.GenericServiceManager.initialize(GenericServiceManager
.java:99)
at
com.slsideas.pagegen.contexts.ServerContext.init(ServerContext.java:197)
at
com.slsideas.pagegen.servlets.BaseControllerServlet.doGet(BaseControllerServ
let.java:238)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:195)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:309)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
at com.evermind._cxb._abe(Unknown Source)
at com.evermind._cxb._uec(Unknown Source)
at com.evermind._io._twc(Unknown Source)
at com.evermind._io._gc(Unknown Source)
at com.evermind._if.run(Unknown Source)
NullPointerException during deployment...
I just spent 3 hours tracking a NullPointerException which occured during
deployment of an ejb-jar.xml (Orion 1.5.2 Windows 2000, JDK 1.3.1). For the
benefit of everyone else:
If you get a NullPointerException without any other messages from orion
during deployment, check to make sure that any bean entities which are
referenced from deployed beans are also deployed.
For example (EJB2.0 CMP), if you have UserEntityBean which references
AddressEntity, as in:
class UserEntityBean ... {
public abstract AddressEntity getAddress();
public abstract void setAddress(AddressEntity address);
}
Make sure that you have also deployed AddressEntity bean in ejb-jar.xml The
same goes for orion-ejb-jar.xml. Any beans that you reference which are not
deployed might cause a NullPointerException to occur during deployment.
-AP_
having to specify location attribute in orion-ejb-jar.xml...
For some reason, I always have to specify the location= attribute on every ejb-ref-name in orion-ejb-jar.xml. If I don't do this, the beans cannot find each other through an ejb-ref tag. I am using the link tag in ejb-jar.xml, but that does not translate into a location attribute in orion-ejb-jar.xml. Has anyone else seen this problem. Is this a bug? Thanks. -AP_
Difference between default-web-app and web-app with root attribute??
Inside of default-web-site.xml, what is the difference between indicating: default-web-app application=default name=defaultWebApp / AND web-app application=default name=defaultWebApp root=/ / Is there a functional difference between these two specifications? Thanks. -AP_
RE: Disappearing env-entry-mapping from orion-ejb-jar.xml
That's strange, we have made extensive modifications to our orion-ejb-jar in the area of query specifications, and they seem to persist ok. The thing we could not get working is the max-tx-retry parameter keeps resetting to 3, but Magnus said it was fixed in the next release, 1.5.3 I assume. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of elephantwalker Sent: Friday, July 20, 2001 9:59 PM To: Orion-Interest Subject: RE: Disappearing env-entry-mapping from orion-ejb-jar.xml not just env-entry-mapping, its just about everything in the orion-ejb-jar.xml file. This is bug 512. I had the problem with group-role mapping. Buts its the same thing, when server restarts or redeploys the app the orion-ejb-jar.xml is GENERATED and not COPIED. You will have to regress to version 1.5.1 as a workaround. Regards, the elephantwalker -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Rian Schmidt Sent: Friday, July 20, 2001 9:21 PM To: Orion-Interest Subject: Disappearing env-entry-mapping from orion-ejb-jar.xml Hi, Does anyone have any idea why we would be seeing an env-entry-mapping disappear from orion-ejb-jar.xml upon deployment? There is a stateless session bean that reads a value env-entry-mapping name=databaseTypeMSSQL/env-entry-mapping from a stateless session beans entry in orion-ejb-jar.xml. And upon deployment the first time, it spits out the right value over and over (we're forcing it to read the value each time another bean uses the stateless session bean to read it). But when we restart the server, the bean reports the default value instead of the mapped one. What's more, the entry is completely gone from the orion-ejb-jar.xml file. I can provide more information, but I thought I'd check first if this smacks of anything obvious. Thanks, Rian
RE: best way to build a link to work in different deploymentconfigurations??
Instead of deploying on different path, how about deploying in a different website on a different port? -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Thompson Sent: Friday, July 20, 2001 8:02 AM To: Orion-Interest Subject: best way to build a link to work in different deployment configurations?? I have an application that during development is deployed multiple times with the following... http://devwebsite/customerApp1 http://devwebsite/customerApp2 In production, I'd like to deploy the applications as... http://customerApp1 http://customerApp2 In the first case file references would look like the following img src=/customerApp1/images/logo.gif while in the second case it should be img src=/images/logo.gif My question is what is the best way to handle file references (links, images, etc) within the application to support both deployments. We could use the request.getContextPath() as a prefix to all file references img src=%=request.getContextPath()%/images/logo.gif but to do this across an entire application seems like extra overhead. It seems like there should be a more elegant solution. I've scoured the orion doc to see if there is a way to do this through configuring websites and webapps, but with no success. Has anyone discovered a better way?? Thanks.
RE: Bi-directional N-to-N support does it work in orion?
I believe bi-directional relationships were in the initial draft of the 2.0 EJB spec. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Scot Weber Sent: Tuesday, July 03, 2001 7:14 AM To: Orion-Interest Subject: Re: Bi-directional N-to-N support does it work in orion? Current OrionServer 1.5.2 is EJB2.0PFD1 compliant, not EJB2.0PFD2. Not speaking for the developers, but merely surmising, I would suspect that it will remain PFD1 until the spec is in final. No sense chasing a rabit down the hole! =) - scot Alex Paransky wrote: I read some time ago that Orion does not support bi-directional N-to-N relationships. Recently (1.5.2) I created such a relationship and initially Orion created TWO relationship tables. Afterwards, I removed one of the tables, and updated orion-ejb-jar.xml to use the same table for both sides of the relationship. Question: Is this type of usage supported in Orion 1.5.2? Am I asking for trouble? Is anyone aware of any problems with using orion-ejb-jar.xml to manipulate the deployment descriptor in such a way? Thanks. -AP_ -- scot weber - [EMAIL PROTECTED] - Given a choice between a folly and a sacrament, one should always choose the folly -- because we know a sacrament will not bring us closer to God and there's always a chance that a folly will. - Erasmus The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt.
RE: Question about port listener
Not everything using EJB has to BE an EJB. In your example, any kind of EJB would be a poor choice for a port listener, due to the passivation/activation constraints that you have to deal with. So: a. If you choose to create a stateless session bean, the container could create a number of them, causing all but the first one to fail (since only one can really listen to the port at the same time). Also, you have little control over how a particular container will choose to create/remove your stateless session beans. b. If you create a statefull session bean, you might have a similar problem. Also, someone has to create the bean to start the process. Something has to bootstrap the create mechanism. c. Using Entity is out of the question since this is not what they were created for. What you really want to do, is write a small client application which does what you need (i.e. listens on a port), and then posts a message into some queue/topic. At this point you can have an MDB listening on the port to perform some action. In the script to start your server, you can also start up the client application which goes along with the server. Weblogic allows you to register startup/shutdown classes, you can use this facility to start your client automatically. As far as creating a connection only once, you can use statics to initialize the collection, and expose the functionality through stateless session beans. In this scenario EACH of your EJB servers in the cluster will open such a connection (since they are not aware of each other). The other way, is to create a RMI object, and put this object into the JNDI name space. Then some stateless session deployed on various servers could all lookup this SINGLE RMI object and invoke methods on it. This introduces a single point of failure, but you need to decide if this is acceptable to your implementation. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Greg Matthews Sent: Sunday, July 01, 2001 3:54 PM To: Orion-Interest Subject: Re: Question about port listener yes, but theoretically, EJBs aren't supposed to interact with the real world, i.e. they're not supposed to manipulate files, open sockets, or do anything useful unless it's through the container's services. you're choices are: 1. do what you said, i.e. open a socket. it would be against the spec but who cares if it works right? 2. if everyone's on the same network, look at using JMS, and then getting your client to put a message in the JMS 3. open the socket from a servlet, not a bean, which is sort of the same as option 1 but within the EJB spec. - Original Message - From: Karri Niemelä [EMAIL PROTECTED] To: Orion-Interest [EMAIL PROTECTED] Sent: Saturday, June 30, 2001 3:03 AM Subject: Question about port listener Question 1) Is it possible to build an bean, which is some sort of tcp port listener? Idea is to listen for traffic on port and then fire an even/send a msg to queue if something is received Question 2) What if we have an 3rd party java api to connect some server using rmi (for an example an api which builds up an connection to short message center) Would it be possible to create an bean which builds up this connection(and does this only once), keeps it up and listens for method calls from clients and then sends them away
How to reference arrays when creating finders in orion-ejb-jar.xml???
I have a home finder method with the following signature: Collection findByTypes(TypeEntity[] types) throws RemoteException; Is there a way to implement this method using CMP by either directly writing the query in ejb-jar.xml, or using orion-ejb-jar.xml method? I am using Orion 1.5.2. Thanks. -AP_
BUG: Show stopper!!!!! max-tx-retries
There seems to be a SERIOUS bug in Orion 1.5.2. It turns out that you cannot disable the max-tx-retries AT ALL!!! Setting it to 0 removes it as a TAG from orion-ejb-jar.xml. The next time around, it adds max-tx-retries=3. There is NO WAY to disable the max-tx-retries. This seems like a serious problem, since there are cases when I do not want to retry a transaction. -AP_
Is location attribute always necessary in orion-ejb-jar.xml for properlookup operation?
Every time I deploy a bean, I seem to have to go into orion-ejb-jar and update every new ejb-ref-name with the location attribute indicating where on the naming tree the home can be found. If I don't do this, I get all kind of lookup errors. Is there a solution to this, or is this normal? -AP_ www: http://www.standardset.com resume: http://www.standardset.com/resume_body.jsp
Question regarding usage of the transaction context...
In HTTP world a single HttpServletRequest ties together execution of multiple Servlets on the same http request. It is similar to the way a Transaction ties together multiple API calls to various EJB objects. Like a common thread, both HttpServletRequest and a Transaction meander through various servlets or APIs respectively. Is there a way to achieve something similar to HttpServletRequest.getAttribute/setAttribute functionality in the EJB world in relation to Transactions? In other words, I would like to attach some values to existing transaction, and be able to retrieve these values in other methods (executing inside of the transaction boundry) without having to explicitly alter the interfaces of the EJBs. Thanks. -AP_
How to execute a SUM function???
I need to do something like this: select sum(price) from lineitem; I have an entity bean called LineItem, with a field called price (getPrice()/setPrice(float)). How can I make this work with Orion? Thanks. -AP_
Is ejbSelect supported in Orion 1.5.1???
I am trying to use ejbSelect method, but getting the following exception: Auto-deploying model (ejb-jar.xml had been touched since the previous deployment)... Error compiling C:\work\individualnetwork\deployment\development\symbiosis\enterprise\server \model: Illegal abstrac t method in dependent class com.indnet.symbiosis.service.adpricingplacement.strategy.user.saturation.Use rSaturationEntityBean: public abstract double com.indnet.symbiosis.service.adpricingplacement.st rategy.user.saturation.UserSaturationEntityBean.ejbSelectTotalSaturation(com .indnet.symbiosis.model.entity.user.UserEntity,java.util.Date,java.util.Date ) Orion/1.5.1 initialized My code looks like this: public abstract double ejbSelectTotalSaturation(UserEntity user, Date fromDate, Date toDate); The exception talks about dependent class, but this is a regular EJB CMP bean (2.0 style). Thanks. -AP_
Colon missing from the Content-Location, in HTTP header...
We are looking at the header which orion returns, and it appears that there is a : missing after the http//. Is this a bug. Is there something I can do to put the colon after content location? HTTP/1.1 200 OK Date: Tue, 08 May 2001 16:52:18 GMT Server: Orion/1.4.7 Content-Location: http//www.wilson.com:444/wilson/page1.jsp Content-Length: 617 Set-Cookie: JSESSIONID=KLKOCNBKDAKB; Path=/ Cache-Control: private Connection: Close Content-Type: text/vnd.wap.wml Thanks. -AP_
RE: Simple Java Doubts
1. Use synchronization with the synchronized keyword 2. Since a server cannot open an http port to the remote client, I don't think HTTP can be used from the server side to notify client of changes. Client would have to either: a. Use polling, by making http requests every so often b. Use persistent socket connection to the server c. Use open http request strategy to always keep an http request outstanding -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Santosh Kumar Sent: Tuesday, May 08, 2001 8:17 AM To: Orion-Interest Subject: Simple Java Doubts Question 1: How does an elementary Singleton pattern based Object behave in a multi-threaded environment? What is this phenomenon called? How do you make such a Singleton Object thread safe? Question 2: What are the two methods typically employed to notify remote clients distributed over the Internet of events that take place on a central server? Like changes in the price of options, market depth, or an order execution? What are the relative advantages/disadvantages of each of these strategies? Specifically, how can they be implemented in Java to allow for firewall tunneling over HTTP?
RE: Colon missing from the Content-Location, in HTTP header...
OOps, once more I spoke before looking. Orion 1.4.8 corrected this problem -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Tuesday, May 08, 2001 10:02 AM To: Orion-Interest Subject: Colon missing from the Content-Location, in HTTP header... We are looking at the header which orion returns, and it appears that there is a : missing after the http//. Is this a bug. Is there something I can do to put the colon after content location? HTTP/1.1 200 OK Date: Tue, 08 May 2001 16:52:18 GMT Server: Orion/1.4.7 Content-Location: http//www.wilson.com:444/wilson/page1.jsp Content-Length: 617 Set-Cookie: JSESSIONID=KLKOCNBKDAKB; Path=/ Cache-Control: private Connection: Close Content-Type: text/vnd.wap.wml Thanks. -AP_
RE: Advanced OR mapping
I have been able to do amazing things with Orion's OR mapping. What specific problem are you having? As you have described: Product - ProductType Product - Supplier - Country Product - Packing Unit Attribute - AttributeType Media - MediaType Price - Currency Price - ClientType Price - SalesTax Are all unidirectional relationships and are supported directly by Orion. The finders such as findProductsBy(ProductType), findProductsBySupplier(Supplier) and findProductsBy(PackingUnit) are directly supported by orion using EJB-QL (supplier = ?1, for example). Product - Attribute(s) Product - Price(s) Product - Media(s) Product - AccessoryProduct(s) (Product and AccessoryProduct as two different ejbs) is a 1-n relationship, and is also directly supported by Orion (in ejb-jar.xml). I belive all of these are supported by Orion, and you can write finder methods for any of these using orion-ejb-jar.xml. Please note that some of the more complicated finder methods are NOT supported through ejb-jar.xml (because ORION does not implement full EJB-QL, however, you can always use orion-ejb-jar.xml to do such a find). Here is an example of a more complicated finder that I have manged to get working: finder-method query=SELECT i.* FROM model_entity_Interest i, symbiosis_model_entity_Node n WHERE i.nodeEntityId = n.id AND n.id = (SELECT nn.parentNodeId FROM model_entity_interest ii, symbiosis_model_entity_Node nn WHERE ii.nodeEntityId = nn.id AND ii.id = $1) partial=false !-- Generated SQL: SELECT i.* FROM model_entity_Interest i, symbiosis_model_entity_Node n WHERE i.nodeEntityId = n.id AND n.id = (SELECT nn.parentNodeId FROM model_entity_interest ii, symbiosis_model_entity_Node nn WHERE ii.nodeEntityId = nn.id AND ii.id = ?) -- method ejb-namecom.indnet.symbiosis.model.entity.Interest/ejb-name method-namefindParentByChild/method-name method-params method-paramcom.indnet.symbiosis.model.entity.interest.InterestEntity/met hod-param /method-params /method /finder-method This method will find a parent for a child in a tree (circular relationship through external nodes). -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Joerg Weishaupt Sent: Sunday, April 29, 2001 10:42 AM To: Orion-Interest Subject: Advanced OR mapping Hi, I'm having some problems with the OR mapping, especially for entity bean reference mappings. Although I've gone thru the Advanced Object-Relational mapping topic on orionsuppurt.com, I'm unable to transfer this to our object model, i.e.: EJB Product has references to - ProductType - Supplier which references to - Country - PackingUnit and also has Collections of - Attributes which references to - AttributeType - Prices which references to - Currency - ClientType - SalesTax - Medias which references to - MediaType - AccessoryProducts which are of the same type as the Product itself. So it's quite complicated and maybe someone can give me some directions of what to do. For me it's very important to see, whether for this model Orion CMP works better (in regard to performance) than the existing BMP, as I've seen that it's faster for simple EJB's TIA Joerg
Does Orion support container managed relationships among entities inmultiple EJB-JAR files???
I am trying to breakup my one giant ejb-jar file into different multiple ejb-jar files, and I was wondering if Orion supports relationships between two Container Managed Entity beans in different ejb-jar files. Is there a section in the SPEC that talks about this? Thanks. -AP_
Is this a 1.4.8 bug??
The following exception occurs when I move to 1.4.8, but DOES NOT occur in 1.4.7: Exception in thread main com.evermind.server.rmi.OrionRemoteException: Transaction was rolled back: java.lang.InternalError: Was not in used mode at ContentManagementService_StatelessSessionBeanWrapper4.createVideoContent(Con tentManagementService_StatelessSessionBeanWrapper4.java:758) at java.lang.reflect.Method.invoke(Native Method) at com.evermind._hw._oa(Unknown Source) at com.evermind._jw.run(Unknown Source) at connection to localhost/127.0.0.1 as admin at com.evermind._br.EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER(Unknown Source) at com.evermind._br.invokeMethod(Unknown Source) at com.evermind._di.invoke(Unknown Source) at __Proxy2.createVideoContent(Unknown Source) at com.indnet.symbiosis.service.contentmanagement.test.Client.main(Client.java: 62) Nested exception is: java.lang.InternalError: Was not in used mode at com.evermind.server.ejb.DataSourceConnection.release(Unknown Source) at OptionEntityHome_EntityHomeWrapper390.findDefaultsByGroup(OptionEntityHome_E ntityHomeWrapper390.java:654) at com.indnet.symbiosis.service.optionmanagement.common.Utility.findDefaultsByG roup(Utility.java:106) at com.indnet.symbiosis.service.optionmanagement.contentoption.ContentOptionSer viceBean.findLanguageDefaultOptions(ContentOptionServiceBean.java:54) at ContentOptionService_StatelessSessionBeanWrapper14.findLanguageDefaultOption s(ContentOptionService_StatelessSessionBeanWrapper14.java:66) at com.indnet.symbiosis.service.contentmanagement.ContentManagementServiceBean. setContentValue(ContentManagementServiceBean.java:363) at com.indnet.symbiosis.service.contentmanagement.ContentManagementServiceBean. setVideoContentValue(ContentManagementServiceBean.java:481) at com.indnet.symbiosis.service.contentmanagement.ContentManagementServiceBean. createVideoContent(ContentManagementServiceBean.java:101) at ContentManagementService_StatelessSessionBeanWrapper4.createVideoContent(Con tentManagementService_StatelessSessionBeanWrapper4.java:708) at java.lang.reflect.Method.invoke(Native Method) at com.evermind._hw._oa(Unknown Source) at com.evermind._jw.run(Unknown Source) at connection to localhost/127.0.0.1 at com.evermind.server.rmi.OrionRemoteException._ny(Unknown Source) at com.evermind._br._mh(Unknown Source) at com.evermind._br.run(Unknown Source) at java.lang.Thread.run(Thread.java:484) Is this a 1.4.8 bug? I am just calling a finder, and getting this exception. Thanks. -AP_
Does any one else see any problems with latest PDF2?
Looking at the latest spec PFD2, it appears that it is not possible to establish a unidirectional relationship between two entity beans in separate ejb-jar.xml files. With the removal of remote-ejb-name as a possible value for role-souce it makes integration of two packages impossible without the mess of taking and trying to merge two ejb-jar files into one. Scenario 1: We are developing an general accounting package. Our clients need to integrate with our package by establishing uni-directional relationships from their CMP Entities into what we provide them. Since they will not be altering our ejb-jar (except for deployment) how can they reference our beans? Scenario 2: Our accounting package contains a good number of CMP Entity beans. Since EJB A relates to B, and B relates to C, and C relates to D and E, and E relates to G and so on. It is not possible to separate the ejb-jar into multiple, smaller, ejb-jar files for the purpose of managing and controlling change. With over 100 EJBs a single ejb-jar becomes very unmanageable. Are there any solutions to these problems? Thanks. Alex Paransky Individualnetwork.com
RE: ejb 2.0 proposed final draft #2 is out
Title: RE: ejb 2.0 proposed final draft #2 is out Ooops, my bad. -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex ParanskySent: Friday, April 27, 2001 12:37 PMTo: Orion-InterestSubject: RE: ejb 2.0 proposed final draft #2 is out I read the spec, and still saw the Dependent Objects in there. Where does it say that the DOs are gone? -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Russ WhiteSent: Friday, April 27, 2001 9:53 AMTo: Orion-InterestSubject: RE: ejb 2.0 proposed final draft #2 is out Am I the only one that think the following makes more sense? EJBObject - Local interface RemoteEJBObject - Remote interface as opposed to EJBObject - Remote interface EJBLocalObject - Local interface Isn't is the more natural state for an object to be local? I am gladthe whole DO thing is gone. It made no good sense at all. Just my 2C -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim DrurySent: Friday, April 27, 2001 9:14 AMTo: Orion-InterestSubject: RE: ejb 2.0 proposed final draft #2 is out Here is the section that says what is different between PFD 1 and 2: E.12 Proposed Final Draft 2 Introduced local interfaces and local home interfaces for entity beans and session beans. Added characterization of local client view. Added subclasses of EJBException for systems exceptions thrown from local interface methods. Revisions to architecture for container managed persistence: * Shifted container managed relationships among entity beans from remote interfaces to local interfaces. * Removed dependent object classes. * Removed remote relationships among entity beans.
Can any one be so kind to help me with this problem...
In this example, I have followed a one-to-one unidirectional relationship to
AddressEntity type. I seem to get a valid reference, but when I proceed to
execute a method (AddressEntity.getId() in this case), I get
NoSuchObjectException. The second time, it works correctly and I do not get
an exception.
Nested exception is:
java.rmi.NoSuchObjectException: com.indnet.common.model.base.EntityKey@49d
at
AddressEntityHome_EntityHomeWrapper734.findExistingEntity(AddressEntityHome_
EntityHomeWrapper734.java:40)
at
AddressEntity_EntityBeanWrapper28.reActivate(AddressEntity_EntityBeanWrapper
28.java:3163)
at
AddressEntity_EntityBeanWrapper28.getId(AddressEntity_EntityBeanWrapper28.ja
va:395)
at
com.indnet.symbiosis.service.common.address.ServiceAddressHelper.getValue(Se
rviceAddressHelper.java:43)
at
com.indnet.symbiosis.service.companymanagement.CompanyManagementServiceBean.
getValue(CompanyManagementServiceBean.java:685)
at
com.indnet.symbiosis.service.companymanagement.CompanyManagementServiceBean.
getValue(CompanyManagementServiceBean.java:661)
at
com.indnet.symbiosis.service.companymanagement.CompanyManagementServiceBean.
findContactByAliasLogin(CompanyManagementServiceBean.java:244)
at
CompanyManagementService_StatelessSessionBeanWrapper2.findContactByAliasLogi
n(CompanyManagementService_StatelessSessionBeanWrapper2.java:2389)
at java.lang.reflect.Method.invoke(Native Method)
at com.evermind.server.rmi.bd.dr(JAX)
at com.evermind.util.f.run(JAX)
at connection to localhost/127.0.0.1
at com.evermind.server.rmi.OrionRemoteException.ib(JAX)
at com.evermind.server.rmi.bb.h4(JAX)
at com.evermind.server.rmi.bb.run(JAX)
at java.lang.Thread.run(Thread.java:484)
I have done some more investigation, and it seems to have to do with the
finder I execute. The first function always works correctly, the second
function fails the first time (with above exception) and then proceeds to
work correctly. If I call the first function, followed by the second, then
everything works fine. It's like something is dirty and then gets set
correctly.
public Contact findContactById(final Long contactId) throws
RemoteException, NamingException, FinderException, FieldException {
return
getValue(
ContactEntityHomeFinder.getHome().findByPrimaryKey(new
EntityKey(contactId))
);
}
public Contact findContactByAliasLogin(final String alias, final String
login) throws RemoteException, NamingException, FinderException,
FieldException {
return
getValue(
ContactEntityHomeFinder.getHome().findByAliasLogin(alias, login)
);
}
The actual lines of code that fails is:
public static Address getValue(final AddressEntity entity) throws
RemoteException, FieldException {
Address value = null;
if (entity != null) {
value = new Address();
value.set(Address.FIELD_ID, entity.getId()); //-- this line fails
}
return value;
}
Does any one have any ideas?
Thanks.
-AP_
RE: Null pointer bug?
Can you post some code? The code of your Control bean, and the code of the TestBean that you are creating. Also post the code for your primary key classes. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chris Bergstresser Sent: Sunday, April 15, 2001 10:48 AM To: Orion-Interest Subject: Null pointer bug? I think I've found a bug in Orion. I've created a primary key for an EJB which contains only an int. However, when this class is deployed, I get the following stack trace on the server: java.lang.NullPointerException at TestBeanHome_EntityHomeWrapper73.hashCode(TestBeanHome_EntityHomeWrapper73.j ava:112) at com.evermind.util.ExternalHashSet.get(JAX) at TestBeanHome_EntityHomeWrapper73.create(TestBeanHome_EntityHomeWrapper73.jav a:544) at com.testing.ControlEJB.ejbPostCreate(ControlEJB.java:97) at ControlHome_EntityHomeWrapper69.create(ControlHome_EntityHomeWrapper69.java: 422) at java.lang.reflect.Method.invoke(Native Method) at com.evermind.server.rmi.bd.dr(JAX) at com.evermind.util.f.run(JAX) And the following on the client: Exception in thread "main" javax.ejb.EJBException at com.evermind.server.rmi.bb.invokeMethod(JAX) at com.evermind.server.rmi.a2.invoke(JAX) at com.evermind.server.rmi.a3.invoke(JAX) at __Proxy2.create(Unknown Source) at com.testing.InitializeSystem.main(InitializeSystem.java:52) The client code creates a "Control" Bean and, in the ejbPostCreate of that bean I lookup the home of the "TestBean" and create it. The null pointer isnt happening in my code -- in fact, everything executes successfully until the thread leaves the ejbCreate method in the TestBean but before it calls the ejbPostCreate method. Then it blows up. Any ideas? -- Chris
RE: How to enable UserManager support for arbitrary user...
Here is the problem that I am not sure how to really fix. Our EJB application is wrapped with a number of "command" URL's which return XML results. For example: http://localhost/getAccountInformation.jsp?account=2234 would return an XML representation of an account. An http://localhost/addUserToAccount?account=2234userName=test... would add a user to a particular account. A Visual Basic client, then uses these "command" URLs and resulting XML to present a user interface. Given the above scenario, what would be your recommendation for authenticating the user starting right after I accept the user/password from the VB form (I don't much care for VB specifics, just the part which deals with EJB/JSP/J2EE security). After accepting user authentication information from a VB dialog, what should I do next. How do I get this information "registered" with Orion or any j2ee application server so that the deployment descriptor information works correctly. Is this the way J2EE security was meant to be used. A non super-user account, cannot execute a setSuperuser(boolean) function on the User bean. Is this how I should be controlling this? Is this the proper method? I was reading the J2EE EJB spec which states that coding security should be the last resort. I am not clear on how to execute the above scenario. Thanks to all the people who have already posted in regards to this issue. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jeff Schnitzer Sent: Friday, April 13, 2001 10:09 PM To: Orion-Interest Subject: RE: How to enable UserManager support for arbitrary user... I suggest using an MVC (aka "Model 2") approach, separating your view from your controller. One of the controller's responsibilities can be to check for authentication and provide to the user either the requested page or the login page. If you use a dispatcher-servlet-action framework for your controller, you typically will only need to put the authentication checking code in a base action class from which all protected action classes derive. If you use JSPs as controllers you'll need some sort of code in every one (you can use @include for this). You will be much happer if you use an MVC appraoch, trust me. The J2EE automatic form-based authentication is very crude and fails to accomodate simple use cases like automatically logging in new users. You might want to look at WebWork: http://www.sourceforge.net/projects/webwork. BTW, if you use the Orion UserManager (and RoleManager), you should not do your own database lookup. Calling RoleManager.login() causes methods to be called on the UserManager, which can either be your class or one of the UserManagers that ship with Orion. DataSourceUserManager looks up password and group information in a table. Jeff -Original Message- From: Alex Paransky [mailto:[EMAIL PROTECTED]] Sent: Friday, April 13, 2001 3:20 PM To: Orion-Interest Subject: RE: How to enable UserManager support for arbitrary user... Tim, this IS what I am looking for, but does it mean that I need to put this into every .JSP page that I have? Then, somehow (according to J2EE spec) Orion will forward this information to all EJB calls and properly make use of the deployment descriptor stuff? So every .JSP page will check the session, find the User object which I stored in there, and execute this call with the user.login and user.password? Thanks. -AP_ -Original Message- From: Tim Endres [mailto:[EMAIL PROTECTED]] Sent: Friday, April 13, 2001 3:04 PM To: Orion-Interest Cc: Alex Paransky Subject: Re: How to enable UserManager support for arbitrary user... Is this what you are looking for? RoleManager roleMgr = (RoleManager) (new InitialContext()).lookup( "java:comp/RoleManager" ); roleMgr.login( "user", "pass" ); Unfortunately, I think that can only run in the container. To accomodate multiple logins under a servlet, we used to use a new InitialContext on every servlet request and set the appropriate JNDI properties for each InitialContext construction. tim. We have developed a web application with our own user/group schema. Creating a UserManager to map our schema seems pretty trivial. What we are NOT clear on is how to tell Orion that a particular user has logged in. For example, we start our application with a LOGIN.JSP page, which accepts user name/password, and proceeds to find the user in the database. After the user is found/authenticated, we create an HTTP session, and store a certain User object in the session to tell us who the user is on the next http request. How do we introduce J2EE security into this picture. In other words, how do we tell Orion which user is logged on so that it starts using the security attributes/group/rights of the deployment descriptors? Do we need to put a special attribute into the HTTPSession so that Orion knows on behalf of what user the request is running? Thanks. -AP_
How to enable UserManager support for arbitrary user...
We have developed a web application with our own user/group schema. Creating a UserManager to map our schema seems pretty trivial. What we are NOT clear on is how to tell Orion that a particular user has logged in. For example, we start our application with a LOGIN.JSP page, which accepts user name/password, and proceeds to find the user in the database. After the user is found/authenticated, we create an HTTP session, and store a certain User object in the session to tell us who the user is on the next http request. How do we introduce J2EE security into this picture. In other words, how do we tell Orion which user is logged on so that it starts using the security attributes/group/rights of the deployment descriptors? Do we need to put a special attribute into the HTTPSession so that Orion knows on behalf of what user the request is running? Thanks. -AP_
RE: How to enable UserManager support for arbitrary user...
Tim, this IS what I am looking for, but does it mean that I need to put this into every .JSP page that I have? Then, somehow (according to J2EE spec) Orion will forward this information to all EJB calls and properly make use of the deployment descriptor stuff? So every .JSP page will check the session, find the User object which I stored in there, and execute this call with the user.login and user.password? Thanks. -AP_ -Original Message- From: Tim Endres [mailto:[EMAIL PROTECTED]] Sent: Friday, April 13, 2001 3:04 PM To: Orion-Interest Cc: Alex Paransky Subject: Re: How to enable UserManager support for arbitrary user... Is this what you are looking for? RoleManager roleMgr = (RoleManager) (new InitialContext()).lookup( "java:comp/RoleManager" ); roleMgr.login( "user", "pass" ); Unfortunately, I think that can only run in the container. To accomodate multiple logins under a servlet, we used to use a new InitialContext on every servlet request and set the appropriate JNDI properties for each InitialContext construction. tim. We have developed a web application with our own user/group schema. Creating a UserManager to map our schema seems pretty trivial. What we are NOT clear on is how to tell Orion that a particular user has logged in. For example, we start our application with a LOGIN.JSP page, which accepts user name/password, and proceeds to find the user in the database. After the user is found/authenticated, we create an HTTP session, and store a certain User object in the session to tell us who the user is on the next http request. How do we introduce J2EE security into this picture. In other words, how do we tell Orion which user is logged on so that it starts using the security attributes/group/rights of the deployment descriptors? Do we need to put a special attribute into the HTTPSession so that Orion knows on behalf of what user the request is running? Thanks. -AP_
RE: W3C Log Format
Hitesh, if you look at the documentation located at http://www.orionserver.com/docs/web-site.xml.html you will notice that there are few options available for the formatting of the output log. Here is some text from this file: access-log format="$ip - $user - [$time] '$request' $status $size" path="./access.log" split="none|hour|day|week|month" suffix="-n-y" / Relative/absolute path to the access-log for this site, this is where incoming requests will be logged. format - Optional formatting of the log entries. $ prefixes vars, the available vars are: $time, $request, $ip, $host, $path, $size, $method, $protocol, $user, $status, $referer, $time, $agent. path - The path to the logfile. split - When (if) to split the access logs, the default is NONE. suffix - The text to append to the log if splitting is used to make up the unique name for a timezone. The format used is that of java.text.SimpleDateFormat. Perhaps you can configure your web-site.xml with the proper logging options to match as close as possible (if not exact) to those defined by the W3C Log format. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Hitesh Patel Sent: Thursday, April 12, 2001 5:41 PM To: Orion-Interest Subject: W3C Log Format does orion support W3C Extended Format (like IIS)? http://www.w3.org/TR/WD-logfile.html if not, what can I do to change it? thanks folks! hitesh ___ hitesh r. patel 213.639.8837 ticketmaster online ticketmaster.com~citysearch.com~match.com
Slow performance with large EJB-JAR.XML file...
We have been putting all our beans in a single ejb-jar.xml. However, it's taking Orion noticably slower to deploy new changes. I am wondering what (if any) problems associated with splitting each bean into it's own ejb-jar.xml and treating it as an independent module. Any help would be appreciated. -AP_
Callbacks on session beans... are they legal?
Is it legal for session bean A to create session bean B, and pass it to session bean C so that C can call on B? For example, if A is acting as a controller, B is acting as a factory, and C is acting as an algorithm. So a controller needs to execute an algorithm which requires a factory as one of it's parameters. As the algorithm runs, it calls on the factory to create the resources it needs. Thanks. -AP_
Home methods...
Does Orion support user home methods? I am trying to create a method in my session bean, but I get the following exception from orion: Error compiling file:/C:/work/individualnetwork/deployment/development/symbiosis/enterprise/ server/service/: Invalid session-EJBHome interface method defined in com.indnet.symbiosis.service.usermanagement.UserManagementServiceHome: test -AP_
RE: Home methods...
Sorry, my bad. No home methods for sessions. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Monday, April 09, 2001 5:13 PM To: Orion-Interest Subject: Home methods... Does Orion support user home methods? I am trying to create a method in my session bean, but I get the following exception from orion: Error compiling file:/C:/work/individualnetwork/deployment/development/symbiosis/enterprise/ server/service/: Invalid session-EJBHome interface method defined in com.indnet.symbiosis.service.usermanagement.UserManagementServiceHome: test -AP_
Various levels transaction support on Orion...
Somewhere I read that Orion does not support client starting transactions. Is my web-application considered a client? Can I start a transaction inside of my web-application? What if web application is running on a server different from my EJB application (using the RMI.XML configuration)? Thanks. -AP_
RE: Does any one has a solution for the domain was null message???
Just like I can write a client that can connect to any server (after specifying proper values to new InitialContext), I should be able to do the same thing from any Java Code (with certain limitations). This should be regardless of where the Java code is running. Why should I get a NullPointerException, trying to connect from one Orion Server to another Orion Server. People have been able to connect from Orion Server to Weblogic server, just by creating a new InitialContext with proper parameters for Weblogic. I am developing a Web client application. Along with the Web client application I am providing the interfaces I need to communicate to the outside world. How can I generically connect my Web Client to a Server? If it is possible to create a new InitialContext onto a Weblogic server from Orion, why should this fail from one Orion server to another? On the other hand, I did read the spec. Chapter 18 "Support for Distribution and Interoperability" is devoted to this exact issue. This chapter places RMI-IIOP communication between two servers. While I realize that Orion's RMI-IIOP implementation is not there, I was hoping for a stop gap measure of using InitialContext. I guess, I'll give up at this point. It's clear that an Orion server acting as a client cannot talk to another Orion server acting as a EJB server using InitialContext. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ray Harrison Sent: Wednesday, April 04, 2001 5:31 AM To: Orion-Interest Subject: RE: Does any one has a solution for the "domain was null" message??? From what I have seen, each app server is free to define its own specific method for partitioning functionality and is not hard wired into the spec. Orion, Weblogic, EA Server, for instance, each have their own protocol for intra/inter server communication. Jason has done an excellent job in describing how Orion operates (and Jason, you also cleared up an issue I was having yesterday too - thanks!). I am not always as careful as I should be when I read specs - Alex, is there a section of the specs that says that you should be able to accomplish what you want to do from the approach that you tried? Architecturally, it seems you have an orion server that is acting as a web container and an orion server that is acting as an EJB container and that you want to use Orion's protocols to have those two servers communicate appropriately. Cheers Ray --- Jason Smith [EMAIL PROTECTED] wrote: Well, I agree that it would be nice if you could get access to servers outside of Orion using the "client" approach, I don't think it necessarily defined in the J2EE platform specs. I took a look around the J2EE 1.3 specification, and the section J2EE.2.8 "Flexibility of Product Requirements" states: "This specification doesn't require that J2EE product be implemented by a single program, a single server, or even a single machine. In general, this specification doesn't describe the partionining of services or functions between machines, servers, or processes. As long as the requirements in this specification are met, J2EE Product Providers can partition the functionality however they see fit. A J2EE product must be able to deploy application components that execute with the semantics described by this specification." In section J2EE.2.11.3 "Network Protocols" it says that "This specification defines the mapping of application components to industry-standard network protocols. The mapping allows client access to the application components that have not installed J2EE product technology". Finally, in J2EE.8.2.1 "Application Assembly" subpart 3ii says "Dependencies that are not linked to internal components must be handled by the Deployer as external dependencies that must be met by resources previously installed on the platform. External resources must be linked to the resources on the platform during deployment." From everything I have read, it seems that Orion isn't violating any specification rules, since they are allowed to partition functionality as they see fit. Orion does allows multiple servers to intercommunicate, but it is the responsibility of the application deployer to specify those links (and it is specific to Orion). Since the web container is bundled as part of the J2EE Server, I don't think the specification requires that it has access to anything outside that specific server environment. I would like to hear the thoughts of others about this, and any experiences they might have had with access with remote containers/servers. -jason __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/?.refer=text
RE: Help me please domain was nul message is killing me here...
Ray, the problem is quite simple. I have two Orion servers. One server is running an EJB application model, the other server is running JSP client application. From the JSP server, I try to access the EJB server, by creating an InitialContext with the same parameters that I would if I was trying to connect to the EJB application using a standalone client (appplication-client.xml and ApplicationClientInitialContextFactory). At this point, I get a NullPointerException on the Client (JSP Server) side telling me that the "domain was null". The exact same code, works correctly when running as a standalone application, however, when put into the JSP Server, produces this exception. Some people suggested using ApplictionInitialContextFactory, however, since ApplicationInitialContextFactory reads application.xml, I have no place to put my ejb-ref tags to reference the objects in the EJB application. Other people suggested playing around with rmi.xml. This, however, hardly seems standard. I am trying to write code that is J2EE compliant without having to use any of the Orion specific features. So I am at a standstill. It's hard to believe that no one ran into this problem. In many cases it does not make sense to deploy the client and server on the same physical machine. Our JSP clients are running on the public internet while our EJB models are running on the private internet not accessible from the outside. Also, since we have many clients, we anticipate having a "farm" of EJB servers running the model, and a "farm" of JSP servers accessing this model. I am amazed that no one has stumbled onto this problem. If you have two Orion servers running, put the following code on one of the servers: Properties p = new Properties(); p.setProperty(Context.PROVIDER_URL, "ormi://target-host/application-name"); p.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.ApplicationClientInitialContextFactory"); p.setProperty(Context.SECURITY_PRINCIPAL, "user"); p.setProperty(Context.SECURITY_CREDENTIALS, "password"); InitialContext ctx = new InitialContext(p); You will need to replace target-host, application-name, user and password with values for your system. You will need to put the application-client.xml in to the proper directory. For a web application, this file should go into WEB-INF/classes/META-INF/application-client.xml. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ray Harrison Sent: Monday, April 02, 2001 8:16 PM To: Orion-Interest Subject: Re: Help me please "domain was nul" message is killing me here... Alex - Is there any chance you could zip up a small amount of code that recreates your problem? You had better include examples of your orion config files too. Or at least if you could provide lots of information code snippets and the like - that would be great! Give us what you can and we may be able to help... Cheers Ray --- Alex Paransky [EMAIL PROTECTED] wrote: Does anyone know what the "domain was null" message means? How do I get rid of it. Where do I specify a domain? HEELP, someone please. I have been posting this question for the last 3 weeks, and still I have no answers. Please, please please, help. -AP_ PS: Is this what it takes to get a question answered? Is there a different forum for paying customers? If I pay $1500, will I get my questions answered faster? __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/?.refer=text
RE: Does any one has a solution for the domain was null message???
Earl, I was only replying to your message where you indicate: "I suggest you try the ApplicationInitialContextFactory instead of theApplicationClientInitialContextFactory in your situation." I was only saying that using ApplicationInitialcontextFactory will not work in my case. There is no aspect that you do not understand. It's quite simple. Just try to create a new InitialContext(p) where p contains ApplicationClientInitialContextFactory. During the creation of InitialContext you will get a NullPointerException with the message of "domain was null". Jason Smith did a good job of documenting of how to connect two Orion servers together using RMI.XML file, however, this does not seem to be J2EE compliant. I still want to use the solution where InitialContext can be used to connect to a different server. For now, we are deploying our application in the same server using the parent="application-name" tag. -AP_ -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Earl MarwilSent: Tuesday, April 03, 2001 8:00 AMTo: Orion-InterestCc: [EMAIL PROTECTED]Subject: RE: Does any one has a solution for the "domain was null" message???If you use the ApplicationClientContextFactory it will read META-INF/application-client.xml which is where you can specify the ejb-ref and env-ref elements... There still must be some other aspect of your situation that I don't understand.In answer to my own question, I finally discovered how the rmi authentication works in conjunction with an EJBUserManager. It was not clear from the error messages. After reading the article at orionsupport on the DataSourceUserManager, studying the orion examples and docs and an intuitive guess, I added the permissions to a group in the application's principals.xml, e.g.:group name="RMIUsers"descriptionrmi users/descriptionpermission name="rmi:login" /permission name="com.evermind.server.rmi.RMIPermission" //group(Can someone explain the permissions in relation to the groups or point me to a reference? I'm still not sure which of the two or whether both are required and why. It works for now...)This group name is added in the orion-application.xml which also directs the application to use the custom EJB user manager:user-manager class="com.evermind.ejb.EJBUserManager"property name="defaultGroups" value="ValidatedUsers" /property name="home" value="ejb/CustomEJBUserBean" //user-manager...namespace-access read-access namespace-resource root="" security-role-mapping group name="RMIUsers" / /security-role-mapping /namespace-resource /read-access .../namespace-accessNow my application client is successful in connecting to the rmi server, authenticating a user account via the EJBUserManager and accessing my application.At 18:37 3/30/2001 -0800, you wrote: The problem, is that I AM connecting to ANOTHER server from a client. It'sjust happends that the client is an Orion. UsingApplicationInitialContextFactory attempts to read META-INF/application.xml,but I need to specify ejb-ref, env-ref and other such entries which youcannot be put into application.xml.-AP_-Original Message-From: [EMAIL PROTECTED][mailto:[EMAIL PROTECTED]]On Behalf Of Earl MarwilSent: Friday, March 30, 2001 10:21 AMTo: Orion-InterestSubject: Re: Does any one has a solution for the "domain was null"message???There may be a clue to this question in the following error message that isgenerated when trying thecom.evermind.server.ApplicationInitialContextFactory from an applicationclient:"javax.naming.NamingException:com.evermind.server.ApplicationInitialContextFactory should only be usedinside Orion server environments. For clientcom.evermind.server.ApplicationClientInitialContextFactory orcom.evermind.server.rmi.RMIInitialContextFactory should be used"I suggest you try the ApplicationInitialContextFactory instead of theApplicationClientInitialContextFactory in your situation.Somewhat related, I have been trying to get an application client working.I have succeeded in connecting to the orion rmi server, looking up an ejb,and retrieving data. I would like to authenticate against theEJBUserManager that is configured for our web applications. However, itappears that the rmi authentication defaults to XMLUserManager - i.e., Ican only authenticate for users defined in the principals.xml file. Thiscould be related to the orion Bugzilla #374. Can anyone provide someinsight into the RMI authentication? Thanks.Regards,EarlAt 18:04 3/29/2001 -0800, you wrote:Could someone help me with this problem. When trying to create a newInitialContext with factorycom.evermind.server.ApplicationClientInitialContextFactory from inside ofOrionServer always throws a
RE: JBoss verses Orion
I don't think that getting a NullPointerException when trying to use a feature is complaint. I feel that the support of such a product is almost as important as the product it's self. Any commercial company that cannot support it's users, will fail. If there is not enouph people to support the product, then hire more. If there is not enouph money to hire more people, then increate the license fee for commercial deployment from $1500 to $3000. It does not make sence to keep the fee so low, and at the same time provide little or no support for the users. I have been trying to resolve the issue with "domain was null" NullPointerException in Orion for the last 4 weeks, with no repsonse. How am I supposed to continue using this product? -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Hani Suleiman Sent: Monday, April 02, 2001 6:28 AM To: Orion-Interest Subject: RE: JBoss verses Orion Magnus and Karl both chip in now and then, they used to do that more in the past I guess, but (understandably) realised that it's a far better use of their time to ensure they have a stellar product, than to respond to endless complaints. As Joseph said, it depends on what you want out of your software. Killer performance, compliance to specs, excellent development environment, easy deployment, or fuzzy feelgood social aspects. The fuzzy stuff is nice, but given a choice Hani On Mon, 2 Apr 2001, Kemp Randy-W18971 wrote: But wouldn't you be just a bit curious to know more about Karl, or more importantly, who the founding members of Ironflare are? I would. If you go to visit the Resin site (www.caucho.com), which is a commercial site, somewhere there is a blurb about Scott, the key architect. And I have noticed that Scott is actively answering questions in the Resin mailing list, and Rickard and Marc are actively answering questions in the Jboss mailing list, both on a regular basic. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Monday, April 02, 2001 5:40 AM To: Orion-Interest Subject: Re: JBoss verses Orion Yes, the amount of charitable contributions made by the Orion team is of the highest importance to me, too. And whether they supported Bush or Gore in Florida. And whether their favorite color is blue - if it's not, then I HATE ORION! (And if it is, then why does their web site use red so much?) Technical issues are over-rated in technical fields, if you ask me. (On the other hand, I can think of a few VERY good reasons JBoss' performance was lower than Orion's - no explanation was made of the specific setup.) On Sat, Mar 31, 2001 at 09:37:31AM -0600, Kemp Randy-W18971 wrote: Orion is definitely ahead of Jboss technically, but Jboss has more people behind it, as far as development and debugging goes. With Jboss, you can get a profile of the founders and board members. It would be nice to have the same profile of some of the Orion founders and developers, so we can know them a bit more personally. Jboss has the potential to catch up to Orion, given the number of people involved on the project. So Orion needs to keep in the technical groove, so to speak. Remember the story of the Turtle and the rabbit race? -Original Message- From: Fink, Paul To: Orion-Interest Sent: 3/30/01 2:52 PM Subject: JBoss verses Orion I ported our Orion application to JBoss. I love JBoss for usability, documentation and support. Unfortunately our application is very performance dependent the JBoss version ran very slow. After playing with cache setting, etc. It seemed like the communications was the main bottle neck. To test this I wrote a simple session bean with one get method that returns a Long. The client looped 10,000 times calling the getter. The Orion version was 6 times faster! Other tests we ran had Orion running 4x faster. It seems that JBoss certainly is performance limited. I'm running on a 900 MHz PIII under Linux with Sun's JDK 1.3 Paul Fink
Finder queries...
I have defined the following finder for the relationship (Account has many Users) - (User has One Account): query query-method method-namefindByAccountLogin/method-name method-params method-paramjava.lang.String/method-param method-paramjava.lang.String/method-param /method-params /query-method ejb-ql FROM com.indnet.symbiosis.model.User u WHERE u.account.id = ?1 and u.login = ?2 /ejb-ql /query Here is what Orion generates in orion-ejb-jar.xml: finder-method query="" !-- Generated SQL: "select Users.id, Users.firstName, Users.middleName, Users.lastName, Users.birthDate, Users.gender, Users.userLogin, Users.userPassword, Users.accountId, Users.scheduleId, Users.superuser from Users" -- method ejb-namecom.indnet.symbiosis.model.entity.User/ejb-name method-namefindByAccountLogin/method-name method-params method-paramjava.lang.String/method-param method-paramjava.lang.String/method-param /method-params /method /finder-method Thanks. -AP_
RE: Does any one has a solution for the domain was null message???
The problem, is that I AM connecting to ANOTHER server from a client. It's just happends that the client is an Orion. Using ApplicationInitialContextFactory attempts to read META-INF/application.xml, but I need to specify ejb-ref, env-ref and other such entries which you cannot be put into application.xml. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Earl Marwil Sent: Friday, March 30, 2001 10:21 AM To: Orion-Interest Subject: Re: Does any one has a solution for the "domain was null" message??? There may be a clue to this question in the following error message that is generated when trying the com.evermind.server.ApplicationInitialContextFactory from an application client: "javax.naming.NamingException: com.evermind.server.ApplicationInitialContextFactory should only be used inside Orion server environments. For client com.evermind.server.ApplicationClientInitialContextFactory or com.evermind.server.rmi.RMIInitialContextFactory should be used" I suggest you try the ApplicationInitialContextFactory instead of the ApplicationClientInitialContextFactory in your situation. Somewhat related, I have been trying to get an application client working. I have succeeded in connecting to the orion rmi server, looking up an ejb, and retrieving data. I would like to authenticate against the EJBUserManager that is configured for our web applications. However, it appears that the rmi authentication defaults to XMLUserManager - i.e., I can only authenticate for users defined in the principals.xml file. This could be related to the orion Bugzilla #374. Can anyone provide some insight into the RMI authentication? Thanks. Regards, Earl At 18:04 3/29/2001 -0800, you wrote: Could someone help me with this problem. When trying to create a new InitialContext with factory com.evermind.server.ApplicationClientInitialContextFactory from inside of OrionServer always throws a NullPointerException, with message "domain was null". The same code works fine from external client. Has anyone fixed this problem? Has anyone seen this problem? Is anyone trying to deploy JSP and EJB parts on different Orion servers, or are all people comfortable running their models in front of the firewalls? Any help would be appreciated Thanks for your help. -AP_ Earl Marwil SCIENTECH, Inc. 1690 International Way Idaho Falls, ID 83402 208.525.3717
RE: Performance problems...
What is the maximum number of connections that you have configured your database pool to? Could you be running out of connections? Are you properly releasing the connections back to the pool, and closing results set which might not be needed? During the time that the site is "frozen" (as you indicate 20 to 60 seconds) can you hit a page that is not database related (a simple .JSP perhaps)? Does that return fast (this would determine if your problem is database or Orion related). Have you tried to examine what's happening on the database server side when this occurs? Just some thoughts. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Aaron Tavistock Sent: Sunday, March 25, 2001 7:09 PM To: Orion-Interest Subject: Performance problems... I've been working on getting Orion running in a production environment for a little while now and just when I thought everything was working fine I go to push to production and something load/volume related is creating massive slowdowns. Basically every 250 database accesses or so there is a long pause (20 to 60 second), where nothing occurs. During this pause the CPU load *drops* to practically nothing and our entire site is frozen. I'm not sure exactly where the problem exists; it could be our code, our configuration, or even a bug in Orion. The environment is Redhat 6.2, JDK1.3, Oracle 8i. Its a pure J2EE app, but we're not using EJB. I initially thought it might be a memory issue, but I've played with the JDK heap size and carefully watched memory utilization and thats also not the issue. I even considered that maybe Evermind/IronFlare might have a throttle (to push you to get a license) so I put one of our production licenses on the QA box. I've since gotten a load tester and can reproduce the problem. Oddly, it only happens on pages which require database access. Even more interesting is that it occurs more frequently on pages which utilize more than one connection. But thats about as far as I can narrow it. I've tried the 8.15 and 8.17 type4 jdbc drivers from oracle and we've tried Oracles ConnectionCacheImpl and Orions XADataSource implimentation, both show the same behavior (though both are using the Oracle Driver). I've also tried Orions jdbc debug and it shows nothing of interest. So far I've put about a week straight into finding it, and I've just about run out of ideas. I'd really be appreciative if anyone has any good suggestions on where to look. ANyone seen behavior like this before?
Specification for java.naming.provider.url...
Orion's documentation talks about specifying the java.naming.provider.url in the following format: java.naming.provider.url=ormi://localhost/domain (application) At a different time, I was having a problem trying to connect one Orion Server (JSP) to another Orion Server using ClientApplicationInitialContextFactory, but was getting a NullPointerException with the message of "domain was null". Is this the domain it's refering to? If so, what should be the domain? Where is it configured? Is domain (application) a missprint, should it just be application? Thanks. -AP_
RE: Orion Memory Configuration
Use java's runtime memory options to configure (-Xm -Xs). -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of McLellan, Richard Sent: Thursday, March 22, 2001 7:23 AM To: Orion-Interest Cc: Hogan, John Subject: Orion Memory Configuration Hello all, I am having a problem when stress testing Orion. I get an out of Memory error from orion. I am running a sun 420R with 2GB RAM with 2 - 500Mhz Processors. As far as the system is concerned there is still 1.7GB RAM available for use when orion dies. I am simulating 5000 users hitting the site at once and as soon as about 64MB of ram is used I get "java.lang.OutOfMemoryError: unable to create new native thread" I have tried starting Orion with the command "java -Xms512m -Xmx1024m -jar orion.jar" to try to allocate more memory to java from the machine and I still get the same error at the same 64MB memory usage mark. Is there a Memory setting in orion that is limiting the orion server that I am missing. If this is a default setting somewhere I hope someone else has run into this. I have looked at the archives and there are a few pages of out of memory errors but None where there was still memory available on the system. I am using the Microsoft Web Application Stress 1.1, the same product used by orion to benchmark the server. I have 5 clients set up to distribute the load of user simulation and I am only hitting one jsp page. Thanks Rich
RE: Question regarding servers as clients to other servers...
Hi Claudio, what makes Orion look into WEB-INF/classes? To find the META-INF? Thanks -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Claudio Cordova Sent: Thursday, March 22, 2001 4:30 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... Hey Alex...How are you Have you tried in WEB-INF/classes/META-INF/application-client.xml Claudio -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 3:58 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... I have one application talking with another on a different server. In the first application I try to create a new InitialContext() with proper parameters to talk to the other server, but Get the error saying that META-INF/application-client.xml is not found. I do not know where in the deployment of the first application I need to put a META-INF. Thanks. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 12:41 PM To: Orion-Interest Subject: Question regarding servers as clients to other servers... I am configuring two Orion application servers. The first server (JSP) is going to be a client of the second server (EJB). In the application running on the first server, I try to create IntialContext with parameters pointing to the second server, but I get the following exception: javax.servlet.jsp.JspException: javax.naming.NamingException: META-INF/application-client.xml resource not found I understand that I need to have META-INF/application-client.xml, but where do I put it? I tried putting it: 1. Directory where I start orion 2. Directory under Application in which a call to new IntialContext is made 3. Directory under Module in the Application in which the new IntialContext is made None of these worked. Any ideas? -AP_
RE: Question regarding servers as clients to other servers...
But it does work, except now, I am getting a ClassCastException where before, when I deployed the web and ebj in the same server with the parent="..." tag I was not getting a class cast exception. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Claudio Cordova Sent: Thursday, March 22, 2001 4:30 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... Hey Alex...How are you Have you tried in WEB-INF/classes/META-INF/application-client.xml Claudio -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 3:58 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... I have one application talking with another on a different server. In the first application I try to create a new InitialContext() with proper parameters to talk to the other server, but Get the error saying that META-INF/application-client.xml is not found. I do not know where in the deployment of the first application I need to put a META-INF. Thanks. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 12:41 PM To: Orion-Interest Subject: Question regarding servers as clients to other servers... I am configuring two Orion application servers. The first server (JSP) is going to be a client of the second server (EJB). In the application running on the first server, I try to create IntialContext with parameters pointing to the second server, but I get the following exception: javax.servlet.jsp.JspException: javax.naming.NamingException: META-INF/application-client.xml resource not found I understand that I need to have META-INF/application-client.xml, but where do I put it? I tried putting it: 1. Directory where I start orion 2. Directory under Application in which a call to new IntialContext is made 3. Directory under Module in the Application in which the new IntialContext is made None of these worked. Any ideas? -AP_
RE: Question regarding servers as clients to other servers...
It seems to be working now, but everytime I attempt to access another orion server, from an orion server, I get a "domain was null" exception message. Creating remote context to: ormi://sergio/symbiosis-server java.lang.NullPointerException: domain was null at com.evermind.server.rmi.RMIServer.fw(JAX) at com.evermind.server.rmi.RMIServer.e7(JAX) at com.evermind.server.rmi.RMIInitialContextFactory.getInitialContext(JAX) at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext (JAX) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246) at javax.naming.InitialContext.init(InitialContext.java:222) at javax.naming.InitialContext.init(InitialContext.java:198) Does any one know what is the problem. The same exact code connects correctly to the server, when running from a STANDALONE ejb client. I am not sure why this would not work from SERVER to SERVER, but works from CLIENT to SERVER? Any Ideas? Thanks. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Claudio Cordova Sent: Thursday, March 22, 2001 5:54 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... META-INF is should be at the root of your client classes in the classpath. claudio -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 5:25 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... Hi Claudio, what makes Orion look into WEB-INF/classes? To find the META-INF? Thanks -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Claudio Cordova Sent: Thursday, March 22, 2001 4:30 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... Hey Alex...How are you Have you tried in WEB-INF/classes/META-INF/application-client.xml Claudio -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 3:58 PM To: Orion-Interest Subject: RE: Question regarding servers as clients to other servers... I have one application talking with another on a different server. In the first application I try to create a new InitialContext() with proper parameters to talk to the other server, but Get the error saying that META-INF/application-client.xml is not found. I do not know where in the deployment of the first application I need to put a META-INF. Thanks. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Thursday, March 22, 2001 12:41 PM To: Orion-Interest Subject: Question regarding servers as clients to other servers... I am configuring two Orion application servers. The first server (JSP) is going to be a client of the second server (EJB). In the application running on the first server, I try to create IntialContext with parameters pointing to the second server, but I get the following exception: javax.servlet.jsp.JspException: javax.naming.NamingException: META-INF/application-client.xml resource not found I understand that I need to have META-INF/application-client.xml, but where do I put it? I tried putting it: 1. Directory where I start orion 2. Directory under Application in which a call to new IntialContext is made 3. Directory under Module in the Application in which the new IntialContext is made None of these worked. Any ideas? -AP_
What does domain was null message mean in the following exception???
java.lang.NullPointerException: domain was null at com.evermind.server.rmi.RMIServer.fw(JAX) at com.evermind.server.rmi.RMIServer.e7(JAX) at com.evermind.server.rmi.RMIInitialContextFactory.getInitialContext(JAX) at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext (JAX) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246) at javax.naming.InitialContext.init(InitialContext.java:222) at javax.naming.InitialContext.init(InitialContext.java:198) This only happends when I connect from SERVER to SERVER, it does not occur and works properly when I try CLIENT to SERVER. Thanks. -AP_
RE: Problems with JNDI lookups of ejb-ref-name defined inapplication-client.xml from a client application...
I think application-client.xml is broken in Orion. The whole purpose of
having application-client.xml is to be able to map a client written by one
vendor, to the EJB written by another vendor. Has any one been able to
"properly" use application-clientejb-ref to map ejb-ref-name to
ejb-link where both are NOT the same string?
Thanks.
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky
Sent: Thursday, March 15, 2001 2:11 PM
To: Orion-Interest
Subject: Problems with JNDI lookups of ejb-ref-name defined in
application-client.xml from a client application...
I have a client application which has META-INF with the following
application-client.xml definition:
application-client
ejb-ref
ejb-ref-nameejb/id/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-linkId/ejb-link
/ejb-ref
/application-client
In the client, I attempt to do the following:
new InitialContext().lookup("ejb/id");
The above fails with the naming exception, telling me that ejb/id cannot be
found:
Exception in thread "main" javax.naming.NameNotFoundException: ejb/id not
found
at com.evermind.server.rmi.RMIContext.lookup(JAX)
at com.evermind.naming.jz.lookup(JAX)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at com.indnet.model.id.test.Client.main(Client.java:16)
If I change my client line to read:
new InitialContext().lookup("Id");
Things work correctly. "Id" is the ejb-name used for my object:
enterprise-beans
session
ejb-nameId/ejb-name
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-classcom.indnet.model.id.IdSessionBean/ejb-class
session-typeStateless/session-type
...
What is the purpose of application-client.xml if I cannot create references
and use the name specified in ejb-ref-name to lookup the components? Or
am I missing something?
Thanks.
-AP_
RE: Problems with JNDI lookups of ejb-ref-name defined inapplication-client.xml from a client application...
You are exactly correct. This IS how it is working in Orion but this does
not seem to the correct.
Suppose you have an EJB that implements some STANDARD interface already
defined, deployed and used by many applications and from many places. You
buy a client application from a vendor who has implemented a new GUI to work
with this STANDARD interface. The vendor defines application-client.xml and
you need to augment it with ejb-link to point to the actual bean. The
vendor DOES NOT know what is the REAL PHYSICAL name of the bean which
implemented the STANDARD interface in your environment, so there is no way
for the vendor to do a lookup based on "beanName". The client vendor writes
his application to lookup on the value in ejb-ref-name.
If this is the way Orion is working, this appears to be somewhat of a
serious bug.
By the way, when I try to use "java:comp/env" from my client, I get the
following exception:
Exception in thread "main" javax.naming.NamingException: java:comp/env
namespace is only available from within a J2EE component
at
com.sun.enterprise.naming.java.javaURLContext.getComponentContext(javaURLCon
text.java:392)
at
com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.java:51)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at client.PersonClient.main(PersonClient.java:25)
Should I record this as a bug, or does any one have other ideas?
Thanks to all that replied
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Bruno Baloi
Sent: Friday, March 16, 2001 6:54 AM
To: Orion-Interest
Subject: RE: Problems with JNDI lookups of ejb-ref-name defined in
application-client.xml from a client application...
Hia guys,
Here is a bit of my experience with this stuff - I found out that if I
have a regular Java client it's the ejb-jar.xml's ejb-name that is
being used to lookup the bean name without the comp/env. The comp/env is
only to be used by J2ee clients i.e. servlets or JSPs. For the J2EE
clients, it is the ejb-ref name that is used in the lookup.
It's weird as all hell !! But that how I found out about this. IN other
words whatever you are using for the Home's lookup will depend on the
type of client you are using. To recap - for Java clients use
lookup("beanName") for J2EE clients ("java:comp/env/beanName")
Try giving this a try
Good Luck
-Original Message-
From: Magnus Rydin [SMTP:[EMAIL PROTECTED]]
Sent: Friday, March 16, 2001 4:30 AM
To: Orion-Interest
Subject:SV: Problems with JNDI lookups of ejb-ref-name
defined in application-client.xml from a client application...
Did you try looking up "java:comp/env/ejb/id" ?
WR
-Ursprungligt meddelande-
Frn: Alex Paransky [
mailto:[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] ]
Skickat: den 15 mars 2001 14:11
Till: Orion-Interest
mne: Problems with JNDI lookups of ejb-ref-name defined in
application-client.xml from a client application...
I have a client application which has META-INF with the
following
application-client.xml definition:
application-client
ejb-ref
ejb-ref-nameejb/id/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-linkId/ejb-link
/ejb-ref
/application-client
In the client, I attempt to do the following:
new InitialContext().lookup("ejb/id");
The above fails with the naming exception, telling me that
ejb/id cannot be
found:
Exception in thread "main"
javax.naming.NameNotFoundException: ejb/id not
found
at com.evermind.server.rmi.RMIContext.lookup(JAX)
at com.evermind.naming.jz.lookup(JAX)
at
javax.naming.InitialContext.lookup(InitialContext.java:350)
at
com.indnet.model.id.test.Client.main(Client.java:16)
If I change my client line to read:
new InitialContext().lookup("Id");
Things work correctly. "Id" is the ejb-name used for my
object:
enterprise-beans
session
ejb-nameId/ejb-name
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-classcom.indnet.model.id.IdSessionBean/ejb-class
session-typeStateless/session-type
...
What is the purpose of application-client.xml if I cannot
create references
and use the n
RE: Problems with JNDI lookups of ejb-ref-name defined in application-client.xml from a client application...
I
tried that before, and got the following exception:
Exception in thread "main" javax.naming.NamingException: java:comp/env
namespace is only available from within a J2EE
component at
com.sun.enterprise.naming.java.javaURLContext.getComponentContext(javaURLContext.java:392)
at
com.sun.enterprise.naming.java.javaURLContext.lookup(javaURLContext.java:51)
at
javax.naming.InitialContext.lookup(InitialContext.java:350)
at client.PersonClient.main(PersonClient.java:25)
Is
this a bug?
-AP_
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Magnus
RydinSent: Friday, March 16, 2001 1:30 AMTo:
Orion-InterestSubject: SV: Problems with JNDI lookups of
ejb-ref-name defined in appli cation-client.xml from a client
application...
Did you try looking up "java:comp/env/ejb/id" ?
WR
-Ursprungligt meddelande- Från: Alex Paransky [mailto:[EMAIL PROTECTED]]
Skickat: den 15 mars 2001 14:11 Till: Orion-Interest Ämne: Problems
with JNDI lookups of ejb-ref-name defined in application-client.xml from a client application...
I have a client application which has META-INF with the
following application-client.xml
definition:
application-client
ejb-ref
ejb-ref-nameejb/id/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote ejb-linkId/ejb-link
/ejb-ref /application-client
In the client, I attempt to do the
following: new
InitialContext().lookup("ejb/id");
The above fails with the naming exception,
telling me that ejb/id cannot be found:
Exception in thread "main"
javax.naming.NameNotFoundException: ejb/id not
found at
com.evermind.server.rmi.RMIContext.lookup(JAX) at
com.evermind.naming.jz.lookup(JAX) at
javax.naming.InitialContext.lookup(InitialContext.java:350) at
com.indnet.model.id.test.Client.main(Client.java:16) If I change my client line to
read: new
InitialContext().lookup("Id"); Things work correctly. "Id" is the ejb-name used for
my object:
enterprise-beans
session
ejb-nameId/ejb-name
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-classcom.indnet.model.id.IdSessionBean/ejb-class
session-typeStateless/session-type ...
What is the purpose of application-client.xml if
I cannot create references and use the name specified in ejb-ref-name to lookup the
components? Or
am I missing something? Thanks. -AP_
RE: Problems with JNDI lookups of ejb-ref-name defined inapplication-client.xml from a client application...
Well, if that's the case, then what's the point of putting ejb-ref in to the
application-client? The client can just always lookup by absolute name
inthe JNDI namespace. And how would an independent client developer
possibly know the EJB names deployed in your custom environment?
-AP_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jeff Hubbach
Sent: Friday, March 16, 2001 8:00 AM
To: Orion-Interest
Subject: Re: Problems with JNDI lookups of ejb-ref-name defined in
application-client.xml from a client application...
Just a sidenote, maybe it's your problem. From page 377 of Enterprise
JavaBeans, 2nd Edition (Oreilly):
"The ejb-link value must match one of the ejb-name values declared in the
same
deployment descriptor."
That is, it's only valid if you're using an ejb-jar.xml to define multiple
beans.
Jeff Hubbach.
Alex Paransky wrote:
I have a client application which has META-INF with the following
application-client.xml definition:
application-client
ejb-ref
ejb-ref-nameejb/id/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-linkId/ejb-link
/ejb-ref
/application-client
In the client, I attempt to do the following:
new InitialContext().lookup("ejb/id");
The above fails with the naming exception, telling me that ejb/id cannot
be
found:
Exception in thread "main" javax.naming.NameNotFoundException: ejb/id not
found
at com.evermind.server.rmi.RMIContext.lookup(JAX)
at com.evermind.naming.jz.lookup(JAX)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at com.indnet.model.id.test.Client.main(Client.java:16)
If I change my client line to read:
new InitialContext().lookup("Id");
Things work correctly. "Id" is the ejb-name used for my object:
enterprise-beans
session
ejb-nameId/ejb-name
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-classcom.indnet.model.id.IdSessionBean/ejb-class
session-typeStateless/session-type
...
What is the purpose of application-client.xml if I cannot create
references
and use the name specified in ejb-ref-name to lookup the components? Or
am I missing something?
Thanks.
-AP_
--
Jeff Hubbach
Internet Developer
New Media Designs, Inc.
www.nmd.com
JNDI problems from client applications!!!
This error message occurs when I have an application-client.xml without any ejb-ref entities in there and orion server has been restarted prior to start up of client. The second time around client works correctly. Exception in thread "main" javax.naming.NamingException: Disconnected: Unknown c ommand: 7 at com.evermind.server.rmi.RMIContext.lookup(JAX) at com.evermind.naming.jz.lookup(JAX) at javax.naming.InitialContext.lookup(InitialContext.java:350) at com.indnet.model.user.test.Client.main(Client.java:22) If on the other hand, I put a reference to the bean that the client is using into the application-client using ejb-ref, I get the following exception when the client first starts up after orion restart: Exception in thread "main" javax.naming.NamingException: Error reading application-client descriptor: No location specified and no suitable instance of the type 'com.indnet.model.IdSession' found for the ejb-ref com.indnet.model.Id at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext (JAX) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246) at javax.naming.InitialContext.init(InitialContext.java:222) at javax.naming.InitialContext.init(InitialContext.java:178) at com.indnet.model.common.InitialContextFinder.getContext(InitialContextFinder .java:27) at com.indnet.model.common.InitialContextFinder.getInitialContext(InitialContex tFinder.java:13) at com.indnet.model.user.test.Client.main(Client.java:17) The second time I run the client, it works! What's going on? -AP_
Questions regarding 1-n bi-directional relationships...
I have an entity called Account, and User. One Account can have many Users (bi-directional relationship). When I add a new User to the Account, the relationship table gets updated, but the AccountId field in the User table is not updated. Is this normal? It thought that account.getUsers().addUser(user) should BOTH update the relationship table and configure the accountId field in the User table. Can someone verify this? Thanks. -AP_
How to use CMP to find by custom types...
I am trying to implement Collection
findByTarget(Target t) throws FinderException, RemoteException, method using
Orion's CMP. My target is defined as follows:
public class Target implements java.io.Serializable
{
private long id;
private String for;
...
public long getId() {return
id;}
public String getFor() {return
for;}
};
How can I tell Orion in orion-ejb-jar.xml to
execute $1.getId() or $1.getFor() on the argument before using it in the
query? The "spirit" of the query I really want to be generated
is:
select * from myTable where myTable.i = (value of
$1.getId()) and myTable.b = (value of $1.getFor())
Thanks.
-AP_
Exception occurs when client is first started after orion restart...
I start Orion 1.4.7 and then run my client. I get an exception. I run the client again, this time it works correctly. The client does not have any persistent state, so the "SAME" code and functions are executed every time. The following trace shows, the first time I run, and then the second time I run. Does anyone have any idea of what is going on? C:\work\individualnetwork\model\user\testjava com.indnet.model.user.test.Client javax.naming.NamingException: Error reading application-client descriptor: No location specified and no suitable instance of the type 'com.indnet.model.IdSession' found for the ejb-ref com.indnet.model.Id at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext (JAX) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:668) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246) at javax.naming.InitialContext.init(InitialContext.java:222) at javax.naming.InitialContext.init(InitialContext.java:178) at com.indnet.model.common.InitialContextFinder.getContext(InitialContextFinder .java:26) at com.indnet.model.common.InitialContextFinder.getInitialContext(InitialContex tFinder.java:13) at com.indnet.model.common.HomeFinder.getHome(HomeFinder.java:28) at com.indnet.model.user.UserEntityHomeFinder.getHome(UserEntityHomeFinder.java :20) at com.indnet.model.user.test.Client.main(Client.java:16) Exception in thread "main" C:\work\individualnetwork\model\user\testjava com.indnet.model.user.test.Client 156 C:\work\individualnetwork\model\user\test The exception is talking about com.indnet.model.IdSession, but I am not even using this in my client, here is how my application-client looks like: application-client ejb-ref ejb-ref-namecom.indnet.model.User/ejb-ref-name ejb-ref-typeEntity/ejb-ref-type homecom.indnet.model.user.UserEntityHome/home remotecom.indnet.model.user.UserEntity/remote ejb-linkcom.indnet.model.User/ejb-link /ejb-ref /application-client Any ideas? Thanks. -AP_
Common access method for homes...
I am trying to create a class than can be used to access the home of a
particular bean. For example, if I have an EJB called UserEntity, I would
create a special class called UserEntityHomeFinder which can be used to
easily obtain a home:
public class UserEntityHomeFinder {
private static final HomeFinder
homeFinder =
new HomeFinder("com.indnet.model.User", UserEntityHome.class);
public static UserEntityHome getHome() throws NamingException {
return
(UserEntityHome) homeFinder.getHome();
}
};
As you can see, this class defines the name of the home interface. I used
to use java:comp/env, however, the exception I got was that java:comp/env
was not available from a standalone client application.
So my question is this, is there a way to setup the naming conventions, so
that the CLIENT and SERVER can use uniform naming conventions to access the
homes of the bean?
Thanks.
-AP_
Problems with JNDI lookups of ejb-ref-name defined in application-client.xml from a client application...
I have a client application which has META-INF with the following
application-client.xml definition:
application-client
ejb-ref
ejb-ref-nameejb/id/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-linkId/ejb-link
/ejb-ref
/application-client
In the client, I attempt to do the following:
new InitialContext().lookup("ejb/id");
The above fails with the naming exception, telling me that ejb/id cannot be
found:
Exception in thread "main" javax.naming.NameNotFoundException: ejb/id not
found
at com.evermind.server.rmi.RMIContext.lookup(JAX)
at com.evermind.naming.jz.lookup(JAX)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
at com.indnet.model.id.test.Client.main(Client.java:16)
If I change my client line to read:
new InitialContext().lookup("Id");
Things work correctly. "Id" is the ejb-name used for my object:
enterprise-beans
session
ejb-nameId/ejb-name
homecom.indnet.model.id.IdSessionHome/home
remotecom.indnet.model.id.IdSession/remote
ejb-classcom.indnet.model.id.IdSessionBean/ejb-class
session-typeStateless/session-type
...
What is the purpose of application-client.xml if I cannot create references
and use the name specified in ejb-ref-name to lookup the components? Or
am I missing something?
Thanks.
-AP_
Implementing CMP finders with non-native argument types...
I am creating a finder which takes a type of Target object to find. So, my home interface looks like this: Collection findByTarget(Target o) The SQL I want to ultimately generate should look something like this: select * from myTable where id = ?1.getId(); Please note, that what's stored in the table is something called id, but I need to extract that id from the Target by using the Target.getId() API before using it in the SQL. Is there a way to do this, or are CMP finders always doomed to accept only primitive types? Thanks. -AP_
EJB encapsulation (data hiding) pattern... Is there such a thing?
I am trying to model a Person having many Phones with two Entity beans. Person and Phone are both entity beans. But I do not want to allow anyone to manipulate the Phone directly. I only want Person to be able to: Person.addPhone(PhoneValue) Person.removePhone(PhoneKey) Person.updatePhone(PhoneKey, PhoneValue) Person.getPhones(). In other words, Phone is treated like a dependent (except on advice of others, I have stopped using dependent objects). Is there a way I can enforce this? In other words, how can I stop any one except Person, from using the PhoneHome/PhoneBean directly? The reason I need to do this, is because Person performs additional logic when phones are added or removed or changed. This logic, must always be performed, so I do not want someone to use the PhoneHome to find the Phone and change it without the person knowing. -AP_ www: http://www.standardset.com resume: http://www.standardset.com/resume_body.jsp home: (818) 541-0029
Using Orion with Apache...
If I follow the documentation on http://orionsupport.com and configure Apache as reverse proxy, how do I deal with SSL? In other words, if user is trying to access https://www.bigcorp.com/myapp/index.jsp which is configured to proxy to ORION, do I still need to install the SSL on the Orion server, or would Apache handle the SSL encryption when it forwards the request to Orion? Thanks. -AP_
RE: Using Orion with Apache...
I am trying to put a together a proposal for a client using OrionServer, and not sure about how SSL will work. The client is already running Apache and would like to continue using it. Is it Apache, that's going to encode/decode the SSL communication, or is it still the job of Orion do this? Thanks for your help. -AP_ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alex Paransky Sent: Wednesday, March 07, 2001 12:10 AM To: Orion-Interest Subject: Using Orion with Apache... If I follow the documentation on http://orionsupport.com and configure Apache as reverse proxy, how do I deal with SSL? In other words, if user is trying to access https://www.bigcorp.com/myapp/index.jsp which is configured to proxy to ORION, do I still need to install the SSL on the Orion server, or would Apache handle the SSL encryption when it forwards the request to Orion? Thanks. -AP_
