SV: O/R mapping
Title: SV: O/R mapping That is, I fully agree that this is important when working with existing tables. WR -Ursprungligt meddelande-Från: Magnus Rydin Skickat: den 23 januari 2001 23:33Till: Orion-InterestÄmne: SV: O/R mapping Daniel, I fully agree with you from your POV. WR -Ursprungligt meddelande- Från: Daniel Cardin [mailto:[EMAIL PROTECTED]] Skickat: den 23 januari 2001 10:50 Till: Orion-Interest Ämne: RE: O/R mapping I'm a CMP fanatic too :) But keep in mind some of us have to deal with existing models that have been created in the "traditionnal" RDBMS fashion. It's good to have control on the way CMP will work with Orion. We have solved the O-R mapping problem by having a code generator generate first-cut beans from the database. Then we use a heavily modified version of Rickard Öberg's java doclet to generate the home interface, the remote interface a data structure for quick access to data, the ejb-jar.xml AND orion-ejb-jar.xml which allows fine-grained control on the tables and attributes used for the mapping through the use of javadoc tags. For example, all CMP fields are marked with the tag @cmp-field. a @cmp-table tag will indicate (through the orion-ejb-jar.xml file) what underlying table is needed for the bean. Similarly @cmp-attribute indicates the doclet what underlying attribute we are mapping to. 1-N and N-M relationships are also supported through doclet tags. This allows a quick regeneration of all source files from one master bean source file. It also enables, through modifications to the doclet, generating other vendor specific files like jboss.xml, inprise-ejb.xml etc. As a bonus, the doclet generates a façade object that allows a connected (via remote methods) or disconnected (via the data object) view of an entity's data. This was a little off-topic, but the point I'm trying to make is that when existing schemas are used, some knowledge on the mapping process can help. Cheers -Message d'origine- De : Magnus Rydin [mailto:[EMAIL PROTECTED]] Envoyé : 23 janvier, 2001 08:51 À : Orion-Interest Objet : SV: O/R mapping One of the things I like best with EJB is that I dont have to care about how my objects are stored (Yes, im a CMP fanatic). So my personal contribution to the subject must be: who cares how many tables are used 'back there' ? :) -Ursprungligt meddelande- Från: Daniel Cardin [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] Skickat: den 23 januari 2001 05:01 Till: Orion-Interest Ämne: RE: O/R mapping I'd like to point out that a third table is only needed for a N-M (many-to-many) relationship. In the case of a 1-N relationship, simply have a foreign key to the master table. For example : Customer object refers to a Country object you a Customer will only have one Country object. you do NOT need a third table to map this. Simply add a field in Customer that contains the foreign key to the Country object. The EJB 2.0 mapping is Simple Customer ... public abstract Country getCountry(); public abstract void setCountry(Country aCountry); and in Country public abstract Collection getCustomers(); public abstract void setCustomer(Collection customers); This is fully supported by Orion, which will populate the collection object automatically. Cheers, Daniel -Message d'origine- De : Tony J Brooks [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] Envoyé : 22 janvier, 2001 11:27 À : Orion-Interest Objet : RE: O/R mapping Hi Theis, As much as I can remember, there *is* - definitely - a need for an intermediate third table to contain the mapping information. By usingthis third table, you eliminate data replication/redundancy in the other two tables. To my knowledge this is a common technique. ER tools typically createsuch an intermediate table for you when you select a relationship to be 'zero/one/many to many'. Whether you see that on your diagram is another matter, but you will definitely see it in your DB ;) Apologies if I have misunderstood your question. Bye for now, Tony. -Original Message- From: [EMAIL PROTECTED] [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ]On Behalf Of [EMAIL PROTECTED] Sent: 22 January 2001 15:10 To: Orion-Interest Subject: O/R mapping Hi! I have been reading the complex-or example and ploughed through the atm example. In the complex-or example it is stated that collections are mapped to an another table and that the reason for this is
RE: O/R Mapping
Hi again! The associative table has its pro and cons. As severel of you pointed out, the use of a associative table makes the tables a lot cleaner. But as our complex world seems to be full of multiplicity, I personally would think twice, when the domain model is large. I did a little test to measure the difference. I created 100 orders with 10 orderlines each, i.e. 1000 records. With an associative table this took: approximately 47 seconds. Without it took: 27 seconds. In the second test I had to make a workaround (I normalized the beans), so the test could be misleading. But it takes me back to my original problem. When Orion autocreates table it automatically create a associative table, which I don't want. Naturally I want the primary key of the one side to be placed as a foreign key in the many side. My ejb-jar.xml looks like this: ejb-jar enterprise-beans entity descriptionOrder holds a number of Orderlines./description display-nameJOrder/display-name ejb-nameJOrderOne/ejb-name homeOrderHome/home remoteOrder/remote ejb-classOrderBean/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant cmp-version2.x/cmp-version cmp-field field-nameorderId/field-name /cmp-field cmp-field field-nameorderLines/field-name /cmp-field primkey-fieldorderId/primkey-field /entity entity descriptionHolds the ordered items of a customer/description display-nameJOrderLine/display-name ejb-nameJOrderLineOne/ejb-name homeOrderLineHome/home remoteOrderLine/remote ejb-classOrderLineBean/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant cmp-version2.x/cmp-version cmp-field field-nameorderLineId/field-name /cmp-field primkey-fieldorderLineId/primkey-field /entity /enterprise-beans relationships ejb-relation descriptionOrder-OrderLines/description ejb-relation-nameOrder-Orderlines/ejb-relation-name ejb-relationship-role descriptionOrder has Orderlines/description ejb-relationship-role-nameOrder-has-Orderlines/ejb-relationship-role-name multiplicityone/multiplicity role-source ejb-nameJOrderOne/ejb-name /role-source cmr-field cmr-field-nameorderLines/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-nameOrderLines-belongsto-Order/ejb-relationship-role-name multiplicitymany/multiplicity role-source ejb-nameJOrderLineOne/ejb-name /role-source /ejb-relationship-role /ejb-relation /relationships assembly-descriptor /assembly-descriptor /ejb-jar So, what is the solution to this problem? Is there any faults in the xml file above? Or is there another solution to my problem? I also read that the bug #140, maintaining a bidirectional 1-n relation, is fixed. This is of course not a bidirectional relationship, but if Orion could handle this wouldn't it be naturally to suppose that it could handle unidirectional relationships. Regards, Theis.
EJB 2.0 support in orion 1.4.5
Hello. It seems that MessageDrivenBeans don't work in orion 1.4.5. All fine in orion 1.4.4 Best regards, Stanislav Bernatsky
R: EJB 2.0 support in orion 1.4.5
Inserted yesterday in bugzilla as bug #260 Luciano -Messaggio originale- Da: Stanislav Bernatsky [mailto:[EMAIL PROTECTED]] Inviato: mercoledÍ 24 gennaio 2001 11.03 A: Orion-Interest Oggetto: EJB 2.0 support in orion 1.4.5 Hello. It seems that MessageDrivenBeans don't work in orion 1.4.5. All fine in orion 1.4.4 Best regards, Stanislav Bernatsky
Re: java.lang.OutOfMemoryError in Product Application
This is a known bug. A workaround was posted a while back. I have since
moved to another company and dont have an installation of orion here so
Im going from memory here. there should be some class in the orion API
like com.evermind.Administrator which has a function flush() (static I
believe) which flushes theentities from memory.
Sven
Globetrot Communications wrote:
Could it be that Orion does not passivate entity
beans, thus running out of virtual memory? I was able
to restart the ProductClient and continue adding to
the table.
Does anybody know of a solution better than having to
stop and restart?
Thanks
--- Globetrot Communications [EMAIL PROTECTED]
wrote:
I am populating a postgreSQL database with "Product"
entity beans. I get a java.lang.OutOfMemeoryError
After adding about 200K entries. Am I getting this
error because all these entity beans stay in memory?
Is there a work-around it besides increasing the -mx
option value? How can one to create number of
objects
limited only by the disk-space?
Thanks for your help.
while (true)
{
// Create a new Product and narrow the
reference.
Product product =
(Product)PortableRemoteObject.narrow(home.create(i),
Product.class);
name = "product"+i
cost = i;
product.setName(name);
product.setPrice(cost);
}
Satish
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RE: O/R mapping
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Sean P. McNamara Sent: mardi 23 janvier 2001 20:41 To: Orion-Interest Subject: RE: O/R mapping While I agree that the 3-table approach is not necessary to do 1-M mappings, and that there are performance reasons that make the 2-table method attractive, the 3-table method has the benefit that it doesn't allow the fact that the object in the M (many) position to intrude upon it's table structure. While this is perhaps not completely germaine to EJB (I'm not so familiar with the details of the spec,) we have found value in the 3-table approach in general O/R use. I guess this is a good design point; But if the client come and say way this is so slow; I say because it use a join, ..., and this is slower than ... ugly; If you make use of the 3-table method, the table that contains the row-data is then only specific to the OBJECT that is stored in the relationship. For instance, if I have: COMPANY --- EMPLOYEE 1 * in one application, and CLIENT EMPLOYEE 1 * in another application, we are not forced to deal with extraneous columns relating the EMPLOYEE to either a COMPANY or a CLIENT (I realize a better model might be to have company and client both subclasses of EMPLOYER, or some such thing.) This example is perhaps even better if we consider the use of EMPLOYEE alone without it's COMPANY or CLIENT relationship. Using the third table for the mapping keeps the individual component entities well isolated, which can be a good thing. Don't know if that was clear, but we've seen a use for the overhead of the 3rd table. Yes, in your case is clear; but if I don't have this case, I don't care about that; The speed is very important; I love CMP; Is the most useful thing from EJB; I believe a ejb container can do more for CMP; He can have options for example, for this relation 1-m use only 2 tables (how I guess is very clear); or if I do a find, for this find use lazy loading for some cmp-field, don't use ll for another cmp-field; If I do a find with a lot of records returned, get from the database in piece of 30 records ( or something like that); Dumitru Sbenghe writes: SV: O/R mappingI care; If you store a 1-m relation in 3 tables, to get the corresponding data from the third table for a PK from the first table, you must join the second table with the third table; A join is slower than a simple select; If you store a 1-m relation in only two table (the normal way) , you do that with only a simple select. ... Someone else previously ... I'd like to point out that a third table is only needed for a N-M (many-to-many) relationship. In the case of a 1-N relationship, simply have a foreign key to the master table. -- Sean P. McNamara [EMAIL PROTECTED] SOMA Technologies, Inc. [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED]
RE: installing Tomcat 3.1 src
I think youare addressing your questions to the wrong list. I would recommend subscribing to the Tomcat list at jakarta.apache.org, and look under Tomcat, and address their mailing list. I also notice you have jboss in your classpath, so I would recommend looking at www.jboss.org, and subscribing to their mailing list. When I have Tomcat and Jboss questions, I find their lists very useful for answering them. When I have Orion questions, this is a great list. If you have EJB questions, either Jboss or Orion is great. I would be highly surprised if the Tomcat list doesn't address the Tomcat question. -Original Message-From: faisal [mailto:[EMAIL PROTECTED]]Sent: Tuesday, January 23, 2001 3:29 PMTo: Orion-InterestSubject: installing Tomcat 3.1 src Hi Does anybody knows what makes Tomcat 3.1 refuse to be called by the browser I installed it on win 98. Everything went smooth but whenever I double click on startup.bat I get this: Starting tomcat in new windowUsing classpath: ..\classes;..\lib\webserver.jar;..\lib\jasper.jar;..\lib\xml.jar;..\lib\servlet.jar;\lib\tools.jar;c:\jboss\client\jboss-client.jar;c:\jboss\client\jnp-client.jar;c:\jboss\lib\ext\ejb.jar;c:\jboss\examples\interest\interest-client.jar;C:\PROGRAM FILES\JAVASOFT\JAXP1.0.1\JAXP.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR...and nothing happens after I increased the window env but it still running in the background I just can't get it Can u please help Faisal
RE: Memory Leak
I have also experienced the same problems, not yet with Orion but with Bluestone. The problem is the same no matter what application server you are using. You must understand that the Application Server is "open-ended". That means that the app server will continue to accept new session requests until the memory is exhausted. If all of the sessions are "active", then the gc cannot reclaim any memory. That is why people run clusters. Usually, for high traffic websites with a high session timeout setting, people run multiple app servers to handle the load. If you do some testing, you will see that based on a session timeout setting of xx minutes, Orion can handle a maximum of x sessions. At another company I worked at, we found this out the hard way (after spending $200,000.00 for the Bluestone server). My suggestions to you are: 1. Look to see if you can lower the session timeout value. 2. Do some testing to see how many concurrent sessions Orion can handle before running out of memory (this ismainly based on the amount of data put into session). 3. Consider running multiple app servers (cluster). Hope this helps... Regards, Tom Pridham Software Engineer Computer Management Consultants 6951 Pistol Range Road Tampa, FL 33536 813-935-7332 ext. 165 813-854-4538 - Fax http://www.cmctpa.com http://www.oakscape.com -Original Message-From: Dan DiCesare [mailto:[EMAIL PROTECTED]]Sent: Tuesday, January 23, 2001 2:59 PMTo: Orion-InterestSubject: Memory Leak Hello, I am using JSP useBean tags to invoke java beans. In my java beans I create a reference to my EJB's. In my JSPI scope the bean as session. In other words the syntax looks as follows: jsp:useBean id="fooBean" scope="session" class="FooBean" / What we are noticing is that every time the page is called, a certain amount of memory is used by each session as expected by the session scope. However, when the session is complete, the memory is not released by the JVM. The end result is that we need to stop Orion server and restart to clear the JVM memory usage. Can anyone advise as to what we need to do. Thanks -Dan Get your FREE download of MSN Explorer at http://explorer.msn.com
Re: Composite PK classes
We've been using composite primary key classes since the beginning of our J2EE project. Notably, a number of our Entity EJBs use a primary key composed of both an identity String and a Locale. Works perfectly for us. What's the problem you are having? P.Pontbriand Canlink Interactive Technologies Inc. - Original Message - From: "Jim Archer" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Cc: "Daniel Cardin" [EMAIL PROTECTED] Sent: Tuesday, January 23, 2001 3:53 PM Subject: Re: Composite PK classes Hi Daniel... I believe I have also been unable to make this work. Let me double check. I don't recall the exact problem I had but I think there is one. I'll check... Jim --On Tuesday, January 23, 2001 1:58 PM -0500 Daniel Cardin [EMAIL PROTECTED] wrote: Has anyone managed to build EJB 2.0 applications using Orion, CMP and composite primary keys using a PK class ? I believe I have followed all recommandations but can't seem to make it work. Cheers, Daniel
RE: Memory Leak
Title: RE: Memory Leak You may want to look into java.lang.ref.SoftReferences. When you assign a soft reference to an object, it is guaranteed to be collected before an out of memory exception is thrown. -tim -Original Message- From: Mike Clark [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 23, 2001 5:38 PM To: Orion-Interest Subject: Re: Memory Leak The memory won't actually be reclaimed until the GC kicks in, which in most cases isn't until the heap is a certain percentage utilized. Mike --- Dan DiCesare [EMAIL PROTECTED] wrote: HR htmlDIV PFONT face=Geneva, Arial, Sans-serifHello,/FONT/P PFONT face=ArialI am using JSP lt;useBeangt; tags to invoke java beans. In my java beans I create a reference to my EJB's. In my JSPnbsp;I scope the bean as session. In other words the syntax looks as follows:/FONT/P Plt;jsp:useBean id=fooBeannbsp; scope=sessionnbsp;nbsp;nbsp; class=FooBean /gt;/P PFONT face=Geneva, Arial, Sans-serifWhat we are noticing is that every time the page is called, a certain amount of memory is used by each session as expected by the session scope. However, when the session is complete, the memory is not released by the JVM. The end result is that we need to stop Orion server and restart to clear the JVM memory usage. Can anyone advise as to what we need to do. /FONT/P PFONT face=Arial/FONTnbsp;/P PFONT face=ArialThanks/FONT/P PFONT face=Arial-Dan/FONT/P/DIVbr clear=allhrGet your FREE download of MSN Explorer at a href=http://explorer.msn.comhttp://explorer.msn.com/abr /p/html __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/
shared attribute on other servers ??
Using the attribute shared=true it is possible to share sessions between a http and a https connection of the same application. Any of you know about this possibility on any other server apart from OrionServer ?? Regards, Ismael
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problem invalidating servlet
I have this small bit of code that handles a log out. What I want to do
is invalidate the session and put a new on in its place. The problem is
when I try to set the attribute, I get an exception telling my the
session is invalidated. Am I missing something?
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession();
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
Thanks
M
Orion v1.4.5 Linux JDK1.3 - tools.jar not found in lib
The tools.jar file is found fine if put in the orion top directory. Putting it in lib, off the top directory, its not found any thoughts? FYI: on debian / with Sun's jdk1.3 bin you need the following support file for threads apt-get install libstdc++2.9-glibc2.1
Problem with JSP - Javabean - EJB(Session) - EJB(Entety) communication with Orion Server
Hi all, i try to test the Monica Pawlan's examples (Artikel: "Writting Enterprise Applications with Java 2 SDK, Enterprise Edition")from www.javasoft.com. There is an example (lesson 5 Adding JavaBeans Technology to the Mix) for JSP - Javabean - EJB(Session) - EJB(Entety) communication. This example run on J2SDKEE-toolkit. all examples from (Lesson 1,2,3,4)can i run with orion server but not this. I don't know why. I send you my codes and my changes in orion config's. I think, the problem is in web.xml . the codes(EJB's) are ok because they run with servlet and jsp(direct without javabean). If you have any other example. please send me that. i have intressted for a communication between jsp, javabean, and ejb's with orion server. server.xml : application name="l5" path="d:\java\projekte\l5\jarwarear\l5.ear" / default-web-site.xml : web-app application="l5" name="l5-web" root="/l5" / The error : 500 Internal Server Error java.lang.NumberFormatException: null at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.init(Unknown Source) at client.JBonusBean.getBonusAmt(JBonusBean.java:31) at /bonus.jsp._jspService(/bonus.jsp.java:69) at com.orionserver.http.OrionHttpJspPage.service(JAX) at com.evermind.server.http.HttpApplication.w5(JAX) at com.evermind.server.http.JSPServlet.service(JAX) at com.evermind.server.http.d1.si(JAX) at com.evermind.server.http.d1.forward(JAX) at com.evermind.server.http.ed.sp(JAX) at com.evermind.server.http.ed.so(JAX) at com.evermind.util.f.run(JAX) Thanks for any help Alireza Vaezegogani Concept! AG Niederlassung Dsseldorf Franziusstrae 2 40219 Dsseldorf Germany Telefon: 0211.300 95 -120 (Zentrale -0) Telefax: 0211.300 95 111 mailto:[EMAIL PROTECTED] http://www.concept.com bonus.jsp ?xml version="1.0"? !DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application 1.2//EN" "http://java.sun.com/j2ee/dtds/application_1_2.dtd" application display-nameL5 (Sample Application)/display-name module ejbl5-ejb.jar/ejb /module module web web-uril5-web.war/web-uri context-root/l5/context-root /web /module /application ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd" ejb-jar description/description enterprise-beans session display-nameThe ejb.Calc session bean/display-name ejb-nameejb.Calc/ejb-name homeejb.CalcHome/home remoteejb.Calc/remote ejb-classejb.CalcBean/ejb-class session-typeStateless/session-type transaction-typeContainer/transaction-type ejb-ref description/description ejb-ref-nameejb/BonusHome/ejb-ref-name ejb-ref-typeEntity/ejb-ref-type homeejb.BonusHome/home remoteejb.Bonus/remote /ejb-ref /session /enterprise-beans enterprise-beans entity description/description display-nameBonus entry/display-name ejb-nameejb.Bonus/ejb-name homeejb.BonusHome/home remoteejb.Bonus/remote ejb-classejb.BonusBean/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantFalse/reentrant cmp-fieldfield-namesocsec/field-name/cmp-field primkey-fieldsocsec/primkey-field /entity /enterprise-beans assembly-descriptor security-role descriptionUsers/description role-nameusers/role-name /security-role /assembly-descriptor /ejb-jar JBonusBean.java Bonus.java BonusBean.java BonusHome.java Calc.java CalcBean.java CalcHome.java ?xml version="1.0"? !DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd" web-app welcome-file-list welcome-filebonus.jsp/welcome-file /welcome-file-list display-nameL5 Web Application/display-name ejb-ref ejb-ref-nameejb/CalcHome/ejb-ref-name ejb-ref-typeSession/ejb-ref-type homeejb.CalcHome/home remoteejb.Calc/remote /ejb-ref ejb-ref ejb-ref-nameejb/BonusHome/ejb-ref-name ejb-ref-typeEntity/ejb-ref-type homeejb.BonusHome/home remoteejb.Bonus/remote /ejb-ref /web-app
Re: problem invalidating servlet
Try this ...
if (event instanceof LogoutEvent) {
HttpSession validSession = request.getSession(true);
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
~boris
Matt Bauer wrote:
I have this small bit of code that handles a log out. What I want to do
is invalidate the session and put a new on in its place. The problem is
when I try to set the attribute, I get an exception telling my the
session is invalidated. Am I missing something?
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession();
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
Thanks
M
problem with load-on-startup SunOs
I have a problem with load-on-startup on my SunOS machine.. in the init() of my HttpServlet i have DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder(); File temp = new File(xmlFile); Document doc = docBuilder.parse(temp); In my web.xml i have load-on-startup 0 /load-on-startup so that the servlet will be placed into service when orion starts.. With w2k it works fine but with the unix machine (SunOS 5.7) i have a java.io.IOException: Stream closed. when the docBuilder try to parse the temp file The same code is rexecuted whe the first user access the website it works without errors.. Any suggestion is appreciated. Thanks Marco -- Ing. Marco Isella, Software Engineer TINET SA, Via Violino 1, CH-6928 Manno-Lugano tel. +41 91 612 22 22, fax. +41 91 612 22 23 email [EMAIL PROTECTED] http://www.tinet.com
RE: installing Tomcat 3.1 src
This is very well put. It's nice to see people taking the time to be just a little polite. The Orion list seems to be a decent community. -Original Message-From: Kemp Randy-W18971 [mailto:[EMAIL PROTECTED]]Sent: Wednesday, January 24, 2001 5:59 AMTo: Orion-InterestSubject: RE: installing Tomcat 3.1 src I think youare addressing your questions to the wrong list. I would recommend subscribing to the Tomcat list at jakarta.apache.org, and look under Tomcat, and address their mailing list. I also notice you have jboss in your classpath, so I would recommend looking at www.jboss.org, and subscribing to their mailing list. When I have Tomcat and Jboss questions, I find their lists very useful for answering them. When I have Orion questions, this is a great list. If you have EJB questions, either Jboss or Orion is great. I would be highly surprised if the Tomcat list doesn't address the Tomcat question. -Original Message-From: faisal [mailto:[EMAIL PROTECTED]]Sent: Tuesday, January 23, 2001 3:29 PMTo: Orion-InterestSubject: installing Tomcat 3.1 src Hi Does anybody knows what makes Tomcat 3.1 refuse to be called by the browser I installed it on win 98. Everything went smooth but whenever I double click on startup.bat I get this: Starting tomcat in new windowUsing classpath: ..\classes;..\lib\webserver.jar;..\lib\jasper.jar;..\lib\xml.jar;..\lib\servlet.jar;\lib\tools.jar;c:\jboss\client\jboss-client.jar;c:\jboss\client\jnp-client.jar;c:\jboss\lib\ext\ejb.jar;c:\jboss\examples\interest\interest-client.jar;C:\PROGRAM FILES\JAVASOFT\JAXP1.0.1\JAXP.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR...and nothing happens after I increased the window env but it still running in the background I just can't get it Can u please help Faisal
RE: problem invalidating servlet
I think he was trying to invalidate the existing session before setting the attribute.
Conrad
-Original Message-
From: Boris Erukhimov [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 24, 2001 4:05 AM
To: Orion-Interest
Subject: Re: problem invalidating servlet
Try this ...
if (event instanceof LogoutEvent) {
HttpSession validSession = request.getSession(true);
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
~boris
Matt Bauer wrote:
I have this small bit of code that handles a log out. What I want to do
is invalidate the session and put a new on in its place. The problem is
when I try to set the attribute, I get an exception telling my the
session is invalidated. Am I missing something?
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession();
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
Thanks
M
novice question
How do I deploy .war files in orion?
Rationale for ejb-ref element?
What is the rationale for having ejb-ref element? I know the spec says that with this approach and ejb-ref is visible only within the scope of the referencing ejb. But that also means that each referenced ejb has to be included as a ejb-ref element of each referencing ejb. Doesn't this get away from the 'write-once' paradigm? Thanks for your input. Satish = __ 5.5 cents calls with 6-second billing no fees. Free toll-fre numbers. No other charges 4 cents Domestic calls with no fees: 5 cents per minute International calls also available http://globetrot.hypermart.net e-mail: [EMAIL PROTECTED] __ __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/
how do i use EJBUserManager
Orion is a nice app server, but poor at documentation. I have this for my orion-application.xml file: orion-application user-manager class="com.evermind.ejb.EJBUserManager" property name="home" value="com.evermind.ejb.EJBUser"/ property name="defaultGroups" value="users"/ /user-manager /orion-application when I start my app I get this exception: Error instantiating application 'hermes' at file:/export/orion/applications/hermes.ear: Error initializing userManager 'com.evermind.ejb.EJBUserManager': NamingException: com.evermind.ejb.EJBUser not found What am I missing? M
Re: Problems authenticating
Hi, I'm glad someone got the thing working. Mike, have you ever come across this error when adding a user to a group? SQL error: ORA-01008: not all variables bound I'm adding it to an Oracle8i database. Thanks. Lawrence - Original Message - From: "Mike Cannon-Brookes" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Tuesday, January 23, 2001 3:35 PM Subject: RE: Problems authenticating There are some problems with the EJBUserManager, I have given up on it. I was trying to add users to a database and assign users to a role/group...I was able to add users to the database, but I wasted more than a week of time trying to add them to a group. These have all be solved in 1.4.5 to my knowledge, and I've been using 1.3.8 before this and they work in there. 1.4.4 had an OR bug that affected EJBUserManager groups. Only use the EJBUserManager or DataSourceUserManager if you don't need to assign users to a group or if you need to assign users to a group then you stay with the principals.xml file. Once again, they work now ;) - Original Message - From: "Matt Bauer" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Tuesday, January 23, 2001 10:16 AM Subject: Problems authenticating I have a simple app (very similiar to the pet store) that uses form based login. I can created an account and see it created in the appropriate principals.xml file. The problem is every time I use my form based login I get an error: 400 Bad request: HTTP method POST is not supported by this URL. My form uses action="j_security_check" method="post" just like its suppose to. Any one know why this fails. Also, I plan on using EJBUserManager, but the docs for it stink. What do I have to add to my orion-application.xml or other xml files to make this thing work? Thanks M
RE: O/R mapping
Could anyone provide an example of what the relations section of the ejb-jar.xml looks like for the different types of relationships that are possible. It will be greatly appreciated. Thank you. Emil -Original Message- From: Dumitru Sbenghe [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 24, 2001 8:47 AM To: Orion-Interest Subject: RE: O/R mapping -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Sean P. McNamara Sent: mardi 23 janvier 2001 20:41 To: Orion-Interest Subject: RE: O/R mapping While I agree that the 3-table approach is not necessary to do 1-M mappings, and that there are performance reasons that make the 2-table method attractive, the 3-table method has the benefit that it doesn't allow the fact that the object in the M (many) position to intrude upon it's table structure. While this is perhaps not completely germaine to EJB (I'm not so familiar with the details of the spec,) we have found value in the 3-table approach in general O/R use. I guess this is a good design point; But if the client come and say way this is so slow; I say because it use a join, ..., and this is slower than ... ugly; If you make use of the 3-table method, the table that contains the row-data is then only specific to the OBJECT that is stored in the relationship. For instance, if I have: COMPANY --- EMPLOYEE 1 * in one application, and CLIENT EMPLOYEE 1 * in another application, we are not forced to deal with extraneous columns relating the EMPLOYEE to either a COMPANY or a CLIENT (I realize a better model might be to have company and client both subclasses of EMPLOYER, or some such thing.) This example is perhaps even better if we consider the use of EMPLOYEE alone without it's COMPANY or CLIENT relationship. Using the third table for the mapping keeps the individual component entities well isolated, which can be a good thing. Don't know if that was clear, but we've seen a use for the overhead of the 3rd table. Yes, in your case is clear; but if I don't have this case, I don't care about that; The speed is very important; I love CMP; Is the most useful thing from EJB; I believe a ejb container can do more for CMP; He can have options for example, for this relation 1-m use only 2 tables (how I guess is very clear); or if I do a find, for this find use lazy loading for some cmp-field, don't use ll for another cmp-field; If I do a find with a lot of records returned, get from the database in piece of 30 records ( or something like that); Dumitru Sbenghe writes: SV: O/R mappingI care; If you store a 1-m relation in 3 tables, to get the corresponding data from the third table for a PK from the first table, you must join the second table with the third table; A join is slower than a simple select; If you store a 1-m relation in only two table (the normal way) , you do that with only a simple select. ... Someone else previously ... I'd like to point out that a third table is only needed for a N-M (many-to-many) relationship. In the case of a 1-N relationship, simply have a foreign key to the master table. -- Sean P. McNamara [EMAIL PROTECTED] SOMA Technologies, Inc. [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED]
Support site down - can I help?
Hi Joe... I noticed that OrionSupport has been down for a few days. If there is a problem, is there anything I can do to help? I have some resoureces available... Jim
RE: novice question
in server.xml, point the application to the .war file directly. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Peter T. Brown Sent: Wednesday, January 24, 2001 9:54 AM To: Orion-Interest Subject: novice question How do I deploy .war files in orion?
Does Orion support JAAS
Does Orion support JAAS (Java Authentication and Authorization Service)? If so, how do I configure Orion to use it? Thanks, John
Orion web site error
That's what I got after clicking on FAQ at www.orionserver.com 500 Internal Server Error com.evermind.server.rmi.OrionRemoteException: Database error: The database is already in use by another process at KeywordHome_EntityHomeWrapper73.findAll(KeywordHome_EntityHomeWrapper73.java:642) at com.evermind.faq.ejb.EntryManagerEJB.getKeywords(EntryManagerEJB.java:58) at EntryManager_StatefulSessionBeanWrapper54.getKeywords(EntryManager_StatefulSessionBeanWrapper54.java:304) at /viewFAQ.jsp._jspService(/viewFAQ.jsp.java:70) (JSP page line 18) at com.orionserver.http.OrionHttpJspPage.service(JAX) at com.evermind.server.http.HttpApplication.xk(JAX) at com.evermind.server.http.JSPServlet.service(JAX) at com.evermind.server.http.d4.sx(JAX) at com.evermind.server.http.d4.sv(JAX) at com.evermind.server.http.eg.s2(JAX) at com.evermind.server.http.eg.dp(JAX) at com.evermind.util.f.run(JAX) Nested exception is: java.sql.SQLException: The database is already in use by another process at org.hsql.Trace.getError(Trace.java:124) at org.hsql.Trace.getError(Trace.java:115) at org.hsql.Trace.error(Trace.java:127) at org.hsql.Log.open(Log.java:115) at org.hsql.Database.init(Database.java:44) at org.hsql.jdbcConnection.openStandalone(jdbcConnection.java:651) at org.hsql.jdbcConnection.init(jdbcConnection.java:524) at org.hsql.jdbcDriver.connect(jdbcDriver.java:78) at com.evermind.sql.DriverManagerDataSource.getConnection(JAX) at com.evermind.sql.DriverManagerConnectionPoolDataSource.getPooledConnection(JAX) at com.evermind.sql.OrionPooledDataSource.d_(JAX) at com.evermind.sql.aj.d_(JAX) at com.evermind.sql.OrionPooledDataSource.getConnection(JAX) at com.evermind.sql.DriverManagerXADataSource.ev(JAX) at com.evermind.sql.am.er(JAX) at com.evermind.sql.aq.prepareStatement(JAX) at com.evermind.server.ejb.DataSourceConnection.getCustomStatement(JAX) at KeywordHome_EntityHomeWrapper73.findAll(KeywordHome_EntityHomeWrapper73.java:533) at com.evermind.faq.ejb.EntryManagerEJB.getKeywords(EntryManagerEJB.java:58) at EntryManager_StatefulSessionBeanWrapper54.getKeywords(EntryManager_StatefulSessionBeanWrapper54.java:304) at /viewFAQ.jsp._jspService(/viewFAQ.jsp.java:70) (JSP page line 18) at com.orionserver.http.OrionHttpJspPage.service(JAX) at com.evermind.server.http.HttpApplication.xk(JAX) at com.evermind.server.http.JSPServlet.service(JAX) at com.evermind.server.http.d4.sx(JAX) at com.evermind.server.http.d4.sv(JAX) at com.evermind.server.http.eg.s2(JAX) at com.evermind.server.http.eg.dp(JAX) at com.evermind.util.f.run(JAX)
RE: how do i use EJBUserManager
Have you deployed com.evermind.ejb.EJBUser and an entity bean in your app? It needs to be specified in an ejb-jar.xml file somewhere of course! -mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Matt Bauer Sent: Thursday, January 25, 2001 5:24 AM To: Orion-Interest Subject: how do i use EJBUserManager Orion is a nice app server, but poor at documentation. I have this for my orion-application.xml file: orion-application user-manager class="com.evermind.ejb.EJBUserManager" property name="home" value="com.evermind.ejb.EJBUser"/ property name="defaultGroups" value="users"/ /user-manager /orion-application when I start my app I get this exception: Error instantiating application 'hermes' at file:/export/orion/applications/hermes.ear: Error initializing userManager 'com.evermind.ejb.EJBUserManager': NamingException: com.evermind.ejb.EJBUser not found What am I missing? M
Re: problem invalidating servlet
Indeed I was
Matt
Conrad Chan wrote:
I think he was trying to invalidate the existing session before setting the
attribute.
Conrad
-Original Message-
From: Boris Erukhimov [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 24, 2001 4:05 AM
To: Orion-Interest
Subject: Re: problem invalidating servlet
Try this ...
if (event instanceof LogoutEvent) {
HttpSession validSession = request.getSession(true);
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
~boris
Matt Bauer wrote:
I have this small bit of code that handles a log out. What I want to do
is invalidate the session and put a new on in its place. The problem is
when I try to set the attribute, I get an exception telling my the
session is invalidated. Am I missing something?
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession();
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
Thanks
M
Source debugging of EJB/Servlet
The Servlet and JSP is not so difficult becuse orion compiles the source and the .class/.java files are all in the filesystem How is it done with EJB's since the EAR / WAR files must be built to deploy?
RE: What is this strange error?
Gerald, I ran into this same problem. For some reason when I deployed, Orion wouldn't copy the principles.xml from my application to the applications-deployment directory. I copied it manually and Orion stopped complaining. I hope this helps. Stuart -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Gerald Gutierrez Sent: Tuesday, January 23, 2001 12:13 PM To: Orion-Interest Subject: What is this strange error? I'm trying to deploy a very simple application, and am getting the error "Invalid principals config URL: principals.xml". What in the world does this mean? I've had this problem all the way from 1.3.x up to 1.4.5 and no one has been able to tell me what it means, or why it happens, or what I must do to get rid of it. It is not documented anywhere. Can someone, perhaps those who work on Orion, PLEASE tell me what this means. The Error: ... Copying default deployment descriptor from archive at C:\k\wrk\test\SingleSignon \Alpha\bld\alpha-app/META-INF/orion-application.xml to deployment directory C:\a \orion\application-deployments\alpha-app... Error instantiating application at file:/C:/k/wrk/test/SingleSignon/Alpha/bld/al pha-app.ear: Invalid principals config URL: principals.xml for alpha-app Auto-deploying file:/C:/a/orion/default-web-app/ (New server version detected). ... My orion-application.xml is: ?xml version="1.0"? !DOCTYPE application PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application 1.2//EN" "http://java.sun.com/j2ee/dtds/application_1_2.dtd" application display-nameAlpha/display-name module web web-urialpha-web.war/web-uri context-root/alpha/context-root /web /module security-role descriptionUsers/description role-namesingle_signon_user/role-name /security-role /application My principals.xml: ?xml version="1.0"? !DOCTYPE principals PUBLIC "//Evermind - Orion Principals//" "http://www.orionserver.com/dtds/principals.dtd" principals groups group name="single_signon_user"/ /groups users user realname="Gerald" username="gerald" password="abc" group-membership group="single_signon_user"/ /user /users /principals
RE: Orion v1.4.5 Linux JDK1.3 - tools.jar not found in lib
the Orion "core" classloader expects to find tools.jar in the \Orion dir -Original Message- From: hanasaki [mailto:[EMAIL PROTECTED]] Sent: Thursday, 25 January 2001 3:28 AM To: Orion-Interest Subject: Orion v1.4.5 Linux JDK1.3 - tools.jar not found in lib The tools.jar file is found fine if put in the orion top directory. Putting it in lib, off the top directory, its not found any thoughts? FYI: on debian / with Sun's jdk1.3 bin you need the following support file for threads apt-get install libstdc++2.9-glibc2.1
Re: java.lang.OutOfMemoryError in Product Application
As per the suggestion, I am doing the following in an
attempt to flush the cache after every 10,000 object
creation. Watching the "free memory", simultaneously,
I was expecting this free memory-count to jump up
every 10,000 objects - but, I am not seeing that. The
"free memory" count is,gradually, creeping downwards,
with occasional slight bump-ups. The application is
still running and will croak tonight if this fix is
not effective.
In the meantime, could somebody please confirm if I
have applied the fix correctly. "MyProduct" is the
ejb-ref-name in the application-client.xml
Thanks
Context context = new InitialContext();
Object o = context.lookup("java:comp/Administrator");
ApplicationAdministrator admin
= (ApplicationAdministrator)
PortableRemoteObject.narrow(o,ApplicationAdministrator.class);
.
.
.
while (true)
{
// Create a new Product and narrow the reference.
Product product = (Product)PortableRemoteObject.
narrow(home.create(i), Product.class);
name = "product"+i;
cost = i;
product.setName(name);
product.setPrice(cost);
if ((i%1)==0)
{
admin.flushEJBCache("MyProduct");
System.out.println(name +" added. Took "
+((System.currentTimeMillis()-startTime)/1000+"secs"));
}
i++;
}
--- Globetrot Communications [EMAIL PROTECTED]
wrote:
Could it be that Orion does not passivate entity
beans, thus running out of virtual memory? I was
able
to restart the ProductClient and continue adding to
the table.
Does anybody know of a solution better than having
to
stop and restart?
Thanks
--- Globetrot Communications
[EMAIL PROTECTED]
wrote:
I am populating a postgreSQL database with
"Product"
entity beans. I get a java.lang.OutOfMemeoryError
After adding about 200K entries. Am I getting this
error because all these entity beans stay in
memory?
Is there a work-around it besides increasing the
-mx
option value? How can one to create number of
objects
limited only by the disk-space?
Thanks for your help.
while (true)
{
// Create a new Product and narrow the
reference.
Product product =
(Product)PortableRemoteObject.narrow(home.create(i),
Product.class);
name = "product"+i
cost = i;
product.setName(name);
product.setPrice(cost);
}
Satish
__
Do You Yahoo!?
Yahoo! Auctions - Buy the things you want at great
prices.
http://auctions.yahoo.com/
=
__
5.5 cents calls with 6-second billing no fees. Free
toll-fre numbers. No other charges
4 cents Domestic calls with no fees:
5 cents per minute International calls also
available
http://globetrot.hypermart.net
e-mail: [EMAIL PROTECTED]
__
__
Do You Yahoo!?
Yahoo! Auctions - Buy the things you want at great
prices.
http://auctions.yahoo.com/
__
Do You Yahoo!?
Yahoo! Auctions - Buy the things you want at great prices.
http://auctions.yahoo.com/
Re: java.lang.OutOfMemoryError in Product Application
Hi Suresh,
I am not having any problems, I was replying to someone else who was
having
an out of memory problem. I have not encountered any out of memory problems
but
I remembered sven posting something some time ago on the
ApplicationAdministator, which
i had saved, so I reposted it.
Perhaps you could direct your expertise towards Satish, who posted;
wrote:
I am populating a postgreSQL database with "Product"
entity beans. I get a java.lang.OutOfMemeoryError
After adding about 200K entries. Am I getting this
error because all these entity beans stay in memory?
Is there a work-around it besides increasing the -mx
option value? How can one to create number of
objects
limited only by the disk-space?
Thanks for your help.
while (true)
{
// Create a new Product and narrow the
reference.
Product product =
(Product)PortableRemoteObject.narrow(home.create(i),
Product.class);
name = "product"+i
cost = i;
product.setName(name);
product.setPrice(cost);
}
Satish
Cheers,
Brett
Re: installing Tomcat 3.1 src
It is great to have youamongstOrion community's members thanks everything is working now Faisal - Original Message - From: Marc Russell To: Orion-Interest Sent: Wednesday, January 24, 2001 5:52 PM Subject: RE: installing Tomcat 3.1 src This is very well put. It's nice to see people taking the time to be just a little polite. The Orion list seems to be a decent community. -Original Message-From: Kemp Randy-W18971 [mailto:[EMAIL PROTECTED]]Sent: Wednesday, January 24, 2001 5:59 AMTo: Orion-InterestSubject: RE: installing Tomcat 3.1 src I think youare addressing your questions to the wrong list. I would recommend subscribing to the Tomcat list at jakarta.apache.org, and look under Tomcat, and address their mailing list. I also notice you have jboss in your classpath, so I would recommend looking at www.jboss.org, and subscribing to their mailing list. When I have Tomcat and Jboss questions, I find their lists very useful for answering them. When I have Orion questions, this is a great list. If you have EJB questions, either Jboss or Orion is great. I would be highly surprised if the Tomcat list doesn't address the Tomcat question. -Original Message-From: faisal [mailto:[EMAIL PROTECTED]]Sent: Tuesday, January 23, 2001 3:29 PMTo: Orion-InterestSubject: installing Tomcat 3.1 src Hi Does anybody knows what makes Tomcat 3.1 refuse to be called by the browser I installed it on win 98. Everything went smooth but whenever I double click on startup.bat I get this: Starting tomcat in new windowUsing classpath: ..\classes;..\lib\webserver.jar;..\lib\jasper.jar;..\lib\xml.jar;..\lib\servlet.jar;\lib\tools.jar;c:\jboss\client\jboss-client.jar;c:\jboss\client\jnp-client.jar;c:\jboss\lib\ext\ejb.jar;c:\jboss\examples\interest\interest-client.jar;C:\PROGRAM FILES\JAVASOFT\JAXP1.0.1\JAXP.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR;C:\PROGRAM;FILES\JAVASOFT\JAXP1.0.1\PARSER.JAR...and nothing happens after I increased the window env but it still running in the background I just can't get it Can u please help Faisal
Re: Orion v1.4.5 Linux JDK1.3 - tools.jar not found in lib
Ah! funny thing is that the orionserver sent me a page saying put it in the orion directory OR somewhere pointed to by a library entry. Neville Burnell wrote: the Orion "core" classloader expects to find tools.jar in the \Orion dir -Original Message- From: hanasaki [mailto:[EMAIL PROTECTED]] Sent: Thursday, 25 January 2001 3:28 AM To: Orion-Interest Subject: Orion v1.4.5 Linux JDK1.3 - tools.jar not found in lib The tools.jar file is found fine if put in the orion top directory. Putting it in lib, off the top directory, its not found any thoughts? FYI: on debian / with Sun's jdk1.3 bin you need the following support file for threads apt-get install libstdc++2.9-glibc2.1
Re: Session timeout
Nobody's answering my question. Please~~ Any idea is welcome. Thanks very much. - Original Message - From: "Seung Ryong Bang" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Monday, January 22, 2001 10:03 AM Subject: Session timeout Hello all, I have just put the following line in my web.xml. session-config session-timeout0/session-timeout /session-config It will not invalidate any session unless the session is forced to be invalidated on purpose. I do not really know if it's going to be fine that way. A session is going to be alive without being invalidated all thru the system, even if the session is not used by anyone anymore. Is that right? That being the case, isn't it kinda resource waste? Am I getting something wrong? I appreciate your help and thoughts in advance. PS: The above config. in web.xml sets the servlet session timeout. Right? Then what about session bean's timeout? Is that the same thing? Or is it somewhere else?
Re: problem invalidating servlet
I guess request.getSession() (aka request.getSession(false) ) gives you existing
session
object.
I don't know how exactly orion implements it, but apparently there is still a valid
reference to session object after session.invalidate() is called. To supress it just
use
request.getSession(true), it will sure create new session for you.
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession(true);
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
~boris
Matt Bauer wrote:
Indeed I was
Matt
Conrad Chan wrote:
I think he was trying to invalidate the existing session before setting the
attribute.
Conrad
-Original Message-
From: Boris Erukhimov [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 24, 2001 4:05 AM
To: Orion-Interest
Subject: Re: problem invalidating servlet
Try this ...
if (event instanceof LogoutEvent) {
HttpSession validSession = request.getSession(true);
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
~boris
Matt Bauer wrote:
I have this small bit of code that handles a log out. What I want to do
is invalidate the session and put a new on in its place. The problem is
when I try to set the attribute, I get an exception telling my the
session is invalidated. Am I missing something?
if (event instanceof LogoutEvent) {
request.getSession().invalidate();
HttpSession validSession = request.getSession();
validSession.setAttribute(WebKeys.ModelManagerKey, mm);
}
Thanks
M
EJB 2.0 Dependent object example now available
Hello all... Many people have written me requesting I provide an EJB 2.0 CMP example that uses a dependent object. To all who asked, I apologize for the delay. I have sent it to Joe for posting on OrionSupport, and it is right now available at: http://www.archer.net/Test20CmpDo.zip This example has an entity bean to represent a person and a dependent object to represent the person's postal address. There is a one-to-one relationship between the entity bean and its dependent. There will be a similar example with a one-to-many relationship soon. Cheers! Jim
Re: Support site down - can I help?
OOPS... Sorry list... This was supposed to go to Joe personally... Jim --On Wednesday, January 24, 2001 3:11 PM -0500 Jim Archer [EMAIL PROTECTED] wrote: Hi Joe... I noticed that OrionSupport has been down for a few days. If there is a problem, is there anything I can do to help? I have some resoureces available... Jim
RE: Session timeout
Yes session-config session-timeoutX/session-timeout /session-config is where you specify the number of minutes of inactivity before web sessions are timed out I dont know for sure what setting this value to 0 does. If it means that sessions never timeout then you probably shouldnt ever set it to 0 (unless you are fond of being forced to restart your application every week) because each session with hang around in memory indefinitely. Regarding a "session bean's timeout" i think you are referring to EJB entity beans? I dont know much about EJB but i'm pretty sure this is a different thing and has nothing to do with servlets or JSP. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Seung Ryong Bang Sent: Thursday, 25 January 2001 12:14 PM To: Orion-Interest Subject: Re: Session timeout Nobody's answering my question. Please~~ Any idea is welcome. Thanks very much. - Original Message - From: "Seung Ryong Bang" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Monday, January 22, 2001 10:03 AM Subject: Session timeout Hello all, I have just put the following line in my web.xml. session-config session-timeout0/session-timeout /session-config It will not invalidate any session unless the session is forced to be invalidated on purpose. I do not really know if it's going to be fine that way. A session is going to be alive without being invalidated all thru the system, even if the session is not used by anyone anymore. Is that right? That being the case, isn't it kinda resource waste? Am I getting something wrong? I appreciate your help and thoughts in advance. PS: The above config. in web.xml sets the servlet session timeout. Right? Then what about session bean's timeout? Is that the same thing? Or is it somewhere else?
Re: Port forwarding
Hey David, I have it running on a 4ip host where each interface (ip) is a different web site which is what I think you want to do right? If that's the case then I did exactly the same thing as you wrt the ipchains command. The problem I ran into is that if I configured each site to only listen on the relevant interface (port= in web-site tag) it didn't work. I had to say port="[ALL]". So I gave each site (interface) a different port 1024 and did the ipchains for each, just as you have done. I also hadded a virutal-hosts entry and a frontend tag in the web-site xml for each site - both were important but I can't remember what failed if you didn't include them. Finally I used ipchains to refuse direct connnections to the ports 1024 that the sites were really using - just being picky I guess. I hope that helps. Trevor On Mon, 22 Jan 2001, David Morton wrote: Has anybody gotten port-forwarding to work? I want orion to run as non-root user on Linux.I did see: http://www.orionsupport.com/articles/unixprocess.html The following is an excerpt: IP Chains (ipfw) IP Chains is a program that comes with recent versions of Linux that uses the ipfw library to specify rules for TCP/IP packets. For information about using it, refer to the howto. Here's a simple rule to tell all incoming TCP packets destined for port 80 to be forwarded to port 10080: [root@myhost]$ ipchains -A input --destination-port 80 -p tcp -j REDIRECT 10080 Warning: Use ipchains at own risk... You are recommended to read the documentation first, and have the machine in easy reach. This command needs to be executed each time the system is booted, so you may want to place it in a startup file somewhere. I tried ipchains rule with one change: ipchains -A input -d 192.168.0.4 80 -p tcp -j REDIRECT 10080 it didn't work. any suggestions? If anyone has working on one ip only (on a machine that has multiple ips like mine)...please send output of 'ipchains -L'...and any other ipmasqadm table output... Thanks David
JAAS Support?
Does Orion 1.4.5 support JAAS? Thanks. Anh
Re: Re: Port forwarding
I have it running on a 4ip host where each interface (ip) is a different web site which is what I think you want to do right? Currently I have a 4ip hostfor argument sake: IP 1 - apache bound to port 80 IP 23 - orion bound to port 80 (unfortunately as root...why I'm trying all this)...up and doing BUSINESS IP 4 - orion bound to 10080...it is responding to http://ip:10080 and local 'telnet IP#4 10080' (i wanted this just for now, I will add more security when I get working) The problem I ran into is that if I configured each site to only listen on the relevant interface (port= in web-site tag) it didn't work. I had to say port="[ALL]". So I gave each site (interface) a different port 1024 and did the ipchains for each, just as you have done. I'm not quite sure what you are saying, but we are getting somewhere...I got orion to bind to port 10080...I have it in 2 places default-web-site.xml and mysite.xml. both with hardcoded IP and port. It is responding as that ip/port and not conflicting with other apache and orion. I've never heard of port="[ALL]".sounds pretty scary to me. it binds to all ports? What do you have in default vs. your virtual hosts? I also hadded a virutal-hosts entry and a frontend tag in the web site xml for each site - both were important but I can't remember what failed if you didn't include them. I have been frustrated with this for almost a monthI actually signed a contract with RedHat for server supportIf orion is responding to port 10080...I would think orion's part should be done.what do you think? I will let you know what Red Hat comes up with...and see if this so called services model is any good. I think the new kernel has better built in port forwarding...it would be a lot easier it seems if the firewall and server were on seperate machinesipchains/ip-masq were not built for local redirection..there are some hacks I can do, but I don't want to use software on my server that is installed on less than 1000 servers in the whole universe David On Mon, 22 Jan 2001, David Morton wrote: Has anybody gotten port-forwarding to work? I want orion to run as non-root user on Linux.I did see: http://www.orionsupport.com/articles/unixprocess.html The following is an excerpt: IP Chains (ipfw) IP Chains is a program that comes with recent versions of Linux that uses the ipfw library to specify rules for TCP/IP packets. For information about using it, refer to the howto. Here's a simple rule to tell all incoming TCP packets destined for port 80 to be forwarded to port 10080: [root@myhost]$ ipchains -A input --destination-port 80 -p tcp -j REDIRECT 10080 Warning: Use ipchains at own risk... You are recommended to read the documentation first, and have the machine in easy reach. This command needs to be executed each time the system is booted, so you may want to place it in a startup file somewhere. I tried ipchains rule with one change: ipchains -A input -d 192.168.0.4 80 -p tcp -j REDIRECT 10080 it didn't work. any suggestions? If anyone has working on one ip only (on a machine that has multiple ips like mine)...please send output of 'ipchains -L'...and any other ipmasqadm table output... Thanks David
RE: Problem Compiling Servlet! Please help
Thanks for your help! I am very new to this and just want to have the servlet up and running... I did install the lasted Orion 1.45. I have not yet successfully compiled a simple servlet... I did put the tools.jar under orion directory and I even put it on the path in autoexec.bat so it looks like this: SET BLASTER=A220 I7 D1 T2 SET SNDSCAPE=C:\WINDOWS PATH C:\WINDOWS;C:\WINDOWS\COMMAND path=%path%;c:\jdk1.3\bin;C:\ORAWIN95\BIN;C:\jdk1.3\lib\tools.jar;C:\jsdk2.1\servlet.jar; set CLASSPATH=,;jsdk2.1\servlet.jar;%CLASSPATH% doskey Unfortunately, when I type in the command javac helloworld2.java I still got this error: C:\Web\jsp\jspRoland\WEB-INF\classesjavac HelloworldServlet2.java HelloworldServlet2.java:2: package javax.servlet does not exist import javax.servlet.*; ^ HelloworldServlet2.java:3: package javax.servlet.http does not exist import javax.servlet.http.*; . I have tried everything I can think of... Some tutorial said I need to put jsdk.jar on the path. I down loaded jsdk2.1 from Sun website but did not find jsdk.jar in it. Can you help me again? Thanks a lot. Roland -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kemp Randy-W18971 Sent: Monday, January 22, 2001 1:14 PM To: Orion-Interest Subject: RE: Problem Compiling Servlet! Please help Do you have the servlet.jar in your classpath (needed for Tomcat) or put the tools.jar in the Orion directory (see Orion installation instructions)? Try upgrading at least to Orion 1.3 (the latest stable version). -Original Message- From: Roland Dong [mailto:[EMAIL PROTECTED]] Sent: Monday, January 22, 2001 3:06 PM To: Orion-Interest Subject: RE: Problem Compiling Servlet! Please help I have successfully auto-compiled the servlet(HelloWorld2.java) by following the instruction in the documentation. However, I wanted to compile the servlet with JDK 1.3 compiler to compile the servlet and I did not succeed. Your documentation says: "Of course you can also compile the Servlets using your favourite IDE or java compiler. If you do so you simply put the Servlet class in the WEB-INF/classes directory of your web application. If you do not want to package your Servlets into a new web application, you can simply put the classes in /orion/default-web-app/WEB-INF/classes/ " I tried to put the HelloWorld2.java under WEB_INF/classes directory. It won't compile. I got errror mesasges: like: HelloWorldServlet2.java:2: package javax.servlet does not exist import javax.servlet.*; I guess the problem is the path... If so can you tell me how to set the path so that my Java compile can compile the servlet? I am using orion 1.0.1. Thanks a lot, Roland
orionconsole bug...
Orion 1.4.5 on Windows 2000 with SP1. I tried to add a new website using orionserver. After I click on "Next", I get the following exception: Exception occurred during event dispatching:java.lang.IndexOutOfBoundsException: Index: -1, Size: 0 at java.util.ArrayList.RangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at com.evermind.gui.server.http.SelectWebAppWizardTask.ay(JAX) at com.evermind.gui.server.http.SelectWebAppWizardTask.init(JAX) at com.evermind.gui.server.http.AddWebSiteWizardTask.auf(JAX) at com.evermind.gui.wizard.AbstractWizard.auf(JAX) at com.evermind.gui.wizard.PanelWizard.actionPerformed(JAX) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEvent(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Anh
Re: orionconsole bug...
SUN JDK1.3.0_01 Anh - Original Message - From: Phan Anh Tran To: orion-interest Sent: Wednesday, January 24, 2001 9:16 PM Subject: orionconsole bug... Orion 1.4.5 on Windows 2000 with SP1. I tried to add a new website using orionserver. After I click on "Next", I get the following exception: Exception occurred during event dispatching:java.lang.IndexOutOfBoundsException: Index: -1, Size: 0 at java.util.ArrayList.RangeCheck(Unknown Source) at java.util.ArrayList.get(Unknown Source) at com.evermind.gui.server.http.SelectWebAppWizardTask.ay(JAX) at com.evermind.gui.server.http.SelectWebAppWizardTask.init(JAX) at com.evermind.gui.server.http.AddWebSiteWizardTask.auf(JAX) at com.evermind.gui.wizard.AbstractWizard.auf(JAX) at com.evermind.gui.wizard.PanelWizard.actionPerformed(JAX) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEvent(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Anh
NameNotFoundException
Hi Could anyone brief me on the procedure for looking-up a bean from another (orion) application? Regards sb Chequemail.com - a free web based e-mail service that also pays!!! http://www.chequemail.com
Deploying a simple web site...
I have a web-site in a directory called "D:\Website\myhome" (only html files and jsp files). How do I go about telling orion to setup a URL http://localhost/myhome to activate my website? I have gone over all the .xml files a dozen times without success, so all insights are appreciated. By the way, I do not want to package my website at all. I want to stay the way it is to ease development efforts. Thanks. Anh
SV: Source debugging of EJB/Servlet
Title: SV: Source debugging of EJB/Servlet Orion supports unpackaged .WAR and .EAR archives. unpack your app in your applicattions library so that it looks something like .../orion/ /applications/ /myear/ /META-INF /com then just reference the /myear/ directory instead of the myear.ear file. WR -Ursprungligt meddelande- Från: hanasaki [mailto:[EMAIL PROTECTED]] Skickat: den 24 januari 2001 14:02 Till: Orion-Interest Ämne: Source debugging of EJB/Servlet The Servlet and JSP is not so difficult becuse orion compiles the source and the .class/.java files are all in the filesystem How is it done with EJB's since the EAR / WAR files must be built to deploy?
AW: Rationale for ejb-ref element?
Hi Satish, there is a good reason for having ejb-ref tag in your deployment descriptor. Although it isn't neccessary to put your beans in the reference list, you might do it in order to support the 'write-once' paradigm. Suppose that there are 3 beans in your jar. Each bean references the other in some way. If you map your references via ejb-ref (e.g. "ejb/a", "ejb/b", "ejb/c") you are free to deploy each bean under any name in your JNDI tree without loosing your references. What I try to say is, that you might use "ejb/foo/BEAN_A" on one server and "ejb/another_foo/EJB_A" on another. Your references within the bean code (- "ejb/a") will still work without changing your code. ejb-ref is a MAPPING of JNDI-NAME-REFERENCES. One might wonder why in the world anyone would deploy his beans using different JNDI-NAMES, but sometimes there are naming conventions on one server that differ from those on other servers... Hartmut -Ursprngliche Nachricht- Von: Globetrot Communications [mailto:[EMAIL PROTECTED]] Gesendet: Mittwoch, 24. Januar 2001 19:07 An: Orion-Interest Betreff: Rationale for ejb-ref element? What is the rationale for having ejb-ref element? I know the spec says that with this approach and ejb-ref is visible only within the scope of the referencing ejb. But that also means that each referenced ejb has to be included as a ejb-ref element of each referencing ejb. Doesn't this get away from the 'write-once' paradigm? Thanks for your input. Satish = __ 5.5 cents calls with 6-second billing no fees. Free toll-fre numbers. No other charges 4 cents Domestic calls with no fees: 5 cents per minute International calls also available http://globetrot.hypermart.net e-mail: [EMAIL PROTECTED] __ __ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices. http://auctions.yahoo.com/
SV: Deploying a simple web site...
Title: SV: Deploying a simple web site... I suggest you take a look at the documentation :) Here is something you could use: http://www.orionserver.com/docs/application-creation-howto.html If you dont want to create an ear file structure, but just add a unpacked WAR file, do the following: Edit the .../config/application.xml and add a reference to the root of your unpacked web application, like: web-module id=myhome-web path=D:\\Website\\myhome / This will add the unpacked myhome WAR to the default application. Now edit your .../config/default_web_site.xml file and add a reference like the following: web-app application=default name=myhome-web root=/myhome / WR -Ursprungligt meddelande- Från: Phan Anh Tran [mailto:[EMAIL PROTECTED]] Skickat: den 24 januari 2001 23:03 Till: Orion-Interest Ämne: Deploying a simple web site... I have a web-site in a directory called D:\Website\myhome (only html files and jsp files). How do I go about telling orion to setup a URL http://localhost/myhome to activate my website? I have gone over all the .xml files a dozen times without success, so all insights are appreciated. By the way, I do not want to package my website at all. I want to stay the way it is to ease development efforts. Thanks. Anh
