Sharing datasource
If the same EJB application is running on lets say two servers, and are sharing the same datasource. Do I have to configure the orion-ejb- jar.xml and set the exclusive-write-access=false for every entity deployment (on both servers) sharing the datasource, to avoid inconsistency in the EJBCaching? regards /linus
Re: OT: Session Related
Put and Get is deprecated, use session.setAttribute(foo)/ session.getAttribute(foo) instead. /Linus On Sunday, March 17, 2002, at 04:55 PM, Stephen Davidson wrote: Hi Michael. The following line in your servlets should handle you; request.getSession().put(keyObject, valueObject); request.getSession().get(keyObject); where; request is the users HttpRequest object getSession returns the HttpSessionObject More details available in the J2EE JavaDocs. -Steve Michael Shoemaker wrote: Hello gang I have a question about a situation that I am facing. Currently we are using servlets to store session information. i.e. For instance, you the front end people wanted to store data into the session they would call SessionServlet?step=savesessionId=123myVal=xyz. In turn a call to it with step=get would return xml containing the value previously stored. It's a somewhat rudimentary way of getting around cookies. Our front end is written in a version of Vignette that doesn't support jsp(another story). My question is, the infrastructure guys recently introduced a load balancers and now we are not guaranteed to get the same server. Big problem. Have any of you solved a problem similar to this. Unfortunately, upgrading to the next version of Vignette isn't the solution. We are about a year or more away budget wise. Thanks again for taking the time to read an off topic post. Mike _ Do You Yahoo!? Get your free yahoo.com address at http://mail.yahoo.com -- Stephen Davidson Java Consultant Delphi Consultants, LLC http://www.delphis.com Phone: 214-696-6224 x208
Re: timed events
One solution would be to write a client-application which contains a
timer and timertasks. The client could for example send a JMS message to
a MDB which triggers an event.
The client could be autostarted together with your application (most
app-servers has a way of doing this). In this way you follow the
standard, it is scalable, distributable and formost it is not that hard
to to.
/Linus
On Thursday, March 14, 2002, at 12:29 AM, Tim Endres wrote:
There are several solutions out there, both commercial and open source.
You might wish to take a look before reinventing.
tim.
Which is not that portable across Application Servers ;)
Typical issues are JNDI lookup problems up to ClassCastExceptions.
Jens
| -Original Message-
| From: [EMAIL PROTECTED]
| [mailto:[EMAIL PROTECTED]]On Behalf Of
| [EMAIL PROTECTED]
| Sent: Wednesday, March 13, 2002 5:21 PM
| To: Orion-Interest
| Subject: RE: timed events
|
|
| Hi,
|
| I use a java.util.Timer wrapped my Scheduler class to schedule
| tasks. I bind
| an instance of this Scheduler to the JNDI from one of my servlet's
init()
| method.
|
| It works fine, use -userThreads switch to start orion if you want
context
| lookup from the scheduled threads.
|
| HTH,
|
| Tibor
|
| -Original Message-
| From: daniele rizzi [mailto:[EMAIL PROTECTED]]
| Sent: Wednesday, March 13, 2002 2:25 PM
| To: Orion-Interest
| Subject: R: timed events
|
|
|
| Hi Casper,
|
| EJB are not multithreaded but a normal class *is*.
|
| Try putting the stuff in a public class TryMe extends Thread{}
|
| d.
|
| ps. if you need a scheduler the things are tougher.
|
|
|
| -Messaggio originale-
| Da: [EMAIL PROTECTED]
| [mailto:[EMAIL PROTECTED]]Per conto di Casper
| H¯jstrup
| Inviato: mercoledÏ 13 marzo 2002 10.21
| A: Orion-Interest
| Oggetto: timed events
|
|
|
| This more of a regular EJB question, I suppose.
|
| I need to initiate some specific tasks and specific times in my
| application,
| since the application server aren't multithreaded(so to speak), and
the
| usage of threads is not recommended, I cannot make a simple
| timer, that will
| initiate the appropriate procedures at a given time.
| How do one solve such problems in an EJB application ?
|
| Regards
| .
|
Bug?!
Updating from 1.5.2 to 1.5.4 Everything seems to work just fine except for one thing. When I use a Filter mapped to one of my servlets a strange error occures. Orion throws a java.lang.NoClassDefFoundError: javax/servlet/Config In my code I have no references to that class. And for all I know there are no such class. Shouldn't it be javax/servlet/ServletConfig instead? /Linus
100 Continue
Hi Im having a propblem sending a POST to a servlet in orion Im trying to send a POST from a PDA with Windows CE installed The servlet just parses the stream and stores the content in a database When the POST is submitted, everything after the 100 Continue response is being stored in the database The data sent before 100 Continue is somehow lost When I try to send the same POST data from an JAVA app, everything is stored in the database and it works fine It seems to me that the PDA client cannot handle the 100 Continue response and continuing sending the POST data and orion is not able to receive it Has anyone any sugesstions? By the way Im using mac OSX with orion 152 Has anyone been able to run a J2EE app with orion 154? Im getting a JVM error (segmentation fault) just by starting it Havent tried with the new MRJ 131 though regards /Linus
Re: Where to put JAAS classfiles (loginmodules) when using it from a web app
According to the atlassian owerview over orion classloaders, it should be possible to use the Class-Path: attribute in your manifest file of your .jar file, orion should load those classes. I´ve tried but never got it to work, it seems orion ignoring the Class-Path: attribute (this works on JBOSS although). By putting your JAAS classfiles in orion/lib your classes gets global acces to all your applications, but it will work. You could specify libary path=../path/to/JAAS in your orion-application.xml, in this way you could keep all your dependency classes in your ear/jar file. /Linus On Tuesday, February 12, 2002, at 05:11 AM, Scott Farquhar wrote: Can I suggest the classloader documentation on the knowledge base: http://kb.atlassian.com/content/atlassian/howto/classloaders.jsp Here is a search that would have found the doc: http://kb.atlassian.com/search.jsp?query=jre/lib/ext Cheers, Scott Scott Farquhar :: [EMAIL PROTECTED] Atlassian :: http://www.atlassian.com Supporting YOUR J2EE World Geoff Soutter wrote: What about orion/lib? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Ismael Blesa Part Sent: Saturday, 26 January 2002 3:25 AM To: Orion-Interest Subject: Where to put JAAS classfiles (loginmodules) when using it from a web app Hi, I am using JAAS authentication from a web application, the problem is that the login modules that I use, and all the classes that the LoginModule uses are not loaded from the WEB-INF/classes or WEB_INF/lib folder. I have to put them on the jdk/jre/lib/ext. The problem is that the classes I put there collide with other applications that use the same installed JDK and also with some other webapplications that run on the same application server. I have developed it using jdk1.3.1 and JAAS 1.0. Is there a way to put specify where login module classes should be loaded that does not interfere with other applications (that is, I do not want to put any class on the jdk/ jre/lib/ext folder). Cheers --
Re: Row limit for finder methods ?!
You could either edit the orion-ejb-jar.xml. And change the generated
SQL, but this will be overwritten next time orion is started. Another
way is to specify a finder query in your EJBHome inteface like this:
String findByRecipient_query = Message.recipient = $1;
Collection findByRecipient(String recipient)
throws RemoteException, FinderException;
And Orion will generate a SQLQuery for you. Here you can use the 'LIMIT'
attribute. Be aware that this way is Orion specific and will reduce the
portability of your code.
As for the EJB2.0 spec and the EJBQL does not support the 'LIMIT'
attribute as far as I know.
/Linus
On Tuesday, February 12, 2002, at 01:05 PM, Toni Menzel wrote:
Hi all,
Is there possibility to set a maximum row count for a resultset ?
Something general for the SQL Attribure LIMIT ?!
Thanks in advance, Toni
-Ursprüngliche Nachricht-
Von: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] Im Auftrag von prasanth sb
Gesendet: Sonntag, 10. Februar 2002 12:16
An: Orion-Interest
Betreff: Re: url.openConnection() doesn't allow to pass objects or
attributes
I used doPost only but still it doesn't.
From: Kesav Kumar [EMAIL PROTECTED]
Reply-To: Orion-Interest [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Subject: Re: url.openConnection() doesn't allow to pass objects or
attributes
Date: Sun, 3 Feb 2002 08:23:09 -0800
I just noticed one more thing with your servlet. It seems that you are
using doGet method in your servlet. If you do a post request through
URL
you need to write doPost method in your servlet.
-kesav kumar
[EMAIL PROTECTED]
- Original Message -
From: prasanth sb [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Sunday, February 03, 2002 2:51 AM
Subject: Re: url.openConnection() doesn't allow to pass objects or
attributes
I set the doOuptut parameters ,but still in orion it is not working.
Can you please help me in this?
From: Kesav Kumar [EMAIL PROTECTED]
Reply-To: Orion-Interest [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Subject: Re: url.openConnection() doesn't allow to pass objects or
attributes
Date: Sat, 26 Jan 2002 08:12:31 -0800
For Posting data from through URLs you have to set doOutput to
true.
con.setDoOutput(true);
con.setDoInput(true);
Once you set the above you can get the OutputStream associated with
connection and send parameters.
For more info read the article at JavaWorld
http://www.javaworld.com/javaworld/javatips/jw-javatip34.html
-kesav kumar
- Original Message -
From: prasanth sb [EMAIL PROTECTED]
To: Orion-Interest [EMAIL PROTECTED]
Sent: Saturday, January 26, 2002 1:27 AM
Subject: url.openConnection() doesn't allow to pass objects or
attributes
Hello dear friends,
Please help me with a strange problem happening
with
orion. I am calling url.openConnection() to a servlet page.When I
call
this,
the call goes to doGet method of the servlet. But it has to go to
the
doPost
method. Second problem is I am able to read the values from the
callee
servlet. But I am not able to pass the values to the callee
servlet.I
am
trying to pass objects in a stream.I have seen this problem
reported in
the
mailing list. Can anyone help me in this?
Please find the sample code,
Caller Servlet
URLConncetion con
=url.openConnection(http://ipname:port/Servlet1;);
ObjectOutputStream os = new
ObjectOutputStream(con.getOutputStream());
os.writeObject(string object);
Callee servlet(Servlet1.java)
public void doGet(HttpServletRequest req,HttpServletResponse res) {
ObjectInputStream ois = new
ObjectInputStream(req.getInputStream());
ois.readObject();//This line , it prints null.It wont print the
string
//string object.But if I return values from the servlet1, then
Caller
servlet is able to read.
Can some one throw some light on this.
_
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log4j + client-application
Hello I want to use log4j together with my application. I.e I want all my servlets, jsps, ejbs and clients toshare the same logfiles. I've implemented log4j according to the tip the atlassian guy gave (don't remember his name).Put the log4j.jar in orion/lib, add libary path="config" to the orion-application.xml and finally add thelog4j.properties (or .xml) in config and add "config" and add the config to your application. So far so good. All my servlets, jsps ejbs are able to invoke log statements. The trouble is that my client which runs as auto-startupis not able to find log4j.xml until orion isfully initialized.So if I make a log statement in the main method of my client log4j will propt an error msg.But ifI invoke a delay until orion is initialized and then make my logstatement everything works. I've tried to set the Class Path: attribute in the Manifest of my client ,which in my case looks like ../../config/log4j.xml.But as it turns out the classloader points at the orion directory and not on my clients jar file, in the mainfest specs it says that the Class Path: attribute is relative to the appplications jar file.Which in my case is not true. How do I use log4j with an application-client which is in autostart mode?` regards /Linus
Client execution...
I am wondering if Orion executes the application clients stated as auto-start in orion-application.xml in separate threads? one for each client? I have three clients in my application, one initclient which populates the db first time the app is started, one schedular and one client listening on port 25 for incomming smtp. The trouble is that the two first clients are started just as expected but when Orion is trying to start the third it just hangs. I´ve tried to launch the third client from a servlet with the -userThread switch and then it starts. Maybe Im wrong but shouldn´t it be possible to launch a client who acts like a server? Maybe I should add that Im using Orion 1.5.2 on macos X. /Linus
getHeaderNames();
Does anyone know why the request.getHeaderNames() returns the headernames as uppercase in orion? regards /Linus
