EJB QL in Session Beans?

Hi,
I am in need of a template like query. That is, I get some data which
tells me "search all rows which fields are equal to those which I tell
you to look for". So I dynamically create a SQL statement. To be more
database independant I would like to use the EJB-QL for that. Is that
possible? How?
Or can I use some other means?
1) in a finderMethod, the where clause will be something like
... AND (?3 IS NULL OR (?3 IS NULL AND xyz = ?3)) AND ...
ok, I know that this where clause is agaist the BNF of EJB-QL but I
mean, is there another way to do this?
2) is there a standard way to call stored procedures, which might so the
same?
Well, ... any comments warmly welcome :-)
Andreas

You need to provide some information. What is the error you are getting?

Similar Messages

Cannot deploy a EJB 3.0 Session bean to the OAS 10.1.3.4

Hi All,
I am unable to deploy a EJB 3.0 Session bean with no deployment descriptors to OAS 10.1.3.4 App server.This Session bean is also exposed as a web service using annotations. I am able to deploy this bean to a standalone oc4j 10.1.3.x containers and test it successfully.
i have written a simple stateless session bean ( exposed as webservice) and every bean is having issues with deployment having the same exception stated below
Can some one please help as i need to deploy this urgently.
below is the session bean code:
import javax.ejb.Stateless;
@Stateless(name="SiebelQuoteEJB")
public class SiebelQuoteEJBBean implements SiebelQuoteEJBLocal,
SiebelQuoteEJBWebService {
public SiebelQuoteEJBBean() {
public String publishMessage(String message,String type) throws java.rmi.RemoteException {
client.publishMessage(message,type);
return "SUCCESS";
Below is the error while deploying:
11/01/06 15:03:49 WARNING: Application.setConfig Application: javasso is in failed state as initialization failed.
java.lang.NullPointerException
11/01/06 15:03:50 WARNING: Application.setConfig Application: SiebelQuoteEJB is in failed state as initialization failed.
java.lang.InstantiationException: Error initializing ejb-modules: null Error parsing application-server config file: null
11/01/06 15:03:50 java.lang.NullPointerException
at com.evermind.server.ObjectReferenceCleaner.cleanupApplicationLogLevels(ObjectReferenceCleaner.java:166)
at com.evermind.server.ObjectReferenceCleaner.loaderDestroyed(ObjectReferenceCleaner.java:88)
at oracle.classloader.EventDispatcher.loaderDestroyed(EventDispatcher.java:248)
at oracle.classloader.PolicyClassLoader.close(PolicyClassLoader.java:1113)
at oracle.classloader.PolicyClassLoader.close(PolicyClassLoader.java:1041)
at com.evermind.server.ApplicationStateRunning.destroyClassLoaders(ApplicationStateRunning.java:1171)
at com.evermind.server.Application.stateCleanUp(Application.java:3635)
at com.evermind.server.Application.setConfig(Application.java:506)
at com.evermind.server.Application.setConfig(Application.java:355)
at com.evermind.server.ApplicationServer.addApplication(ApplicationServer.java:1895)
at com.evermind.server.ApplicationServer.initializeDeployedApplications(ApplicationServer.java:1651)
at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:1034)
at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
at java.lang.Thread.run(Thread.java:736)

which jdk version? Had this with 1.6 and had to install an up-to-date jdbc.

How create EJB 2.1 Stateful Session Bean in a EJB 3.0 Session Bean

Hi All,
We have been developing on EJB 2.1. We are now adding a module on EJB 3.0.
How can we "create" a stateful session bean with create method signature similar to create(String id)?
We have tried
// this is the remote interface
@EJB AddressBean abean;
But not working
Any help will be appreciated.

There is no explicit create() call for EJB 3.0 session beans. It doesn't really matter though
since you can accomplish the same thing by defining your own business method to act
as an initializer for whatever state you'd like. E.g.
@Remote
public interface FooInterface {
public void initialize(String id);
// ... other business methods
@EJB FooInterface fooRef;
fooRef.initialize("foo");
--ken

How to lookup a EJB 3.0 session bean which is deployed in WebLogic 10.3

Now Jdeveloper 11.1.1, is giving WebLogic server 10.3.
With internal WebLogic server, when I created a Sample client, it generated code as:
private static Context getInitialContext() throws NamingException {
    Hashtable env = new Hashtable();
    // WebLogic Server 10.x connection details
    env.put( Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory" );
    env.put(Context.PROVIDER_URL, "t3://127.0.0.1:7101");
    return new InitialContext( env );
public static void main(String [] args) {
    try {
        final Context context = getInitialContext();
        DefaultSession defaultSession = (DefaultSession)context.lookup("property-DefaultSession#com.vs.property.model.session.DefaultSession");
    } catch (Exception ex) {
}How to update the above code to lookup the EJB 3.0 session beans with an external WebLogic server 10.3?
Is there any documentation available on how to install weblogic, troubleshoot, debug, WebLogic server 10.3?
regds
-raju

Raju,
Hi, to start, here is a tutorial on a quickstart web application using an EJB 3.0 stateless session bean that fronts a container managed EclipseLink JPA entity manager on WebLogic 10.3, you will find references there to other general WebLogic documentation.
[http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial]
using @EJB injection on the client instead of a JNDI lookup as below
[http://edocs.bea.com/wls/docs103/ejb30/annotations.html#wp1417411]
1) in your second env.put I noticed that your t3 port is 7101, I usually use the default 7001 - but It looks like this port is valid for the JDeveloper embedded version of WebLogic server runs - just verify that it matches the port of your server.
2) your name#qualified-name lookup looks ok. Verify that the jndi-name element is set in your weblogic-ejb-jar.xml for non injection clients like the following
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>ApplicationService</ejb-name>
<jndi-name>ApplicationService</jndi-name>
3) as a test outside of your application - launch the WebLogic admin console and goto the testing tab of your bean in [Home > Summary of Deployments > "application" > "session bean name"
thank you
/michael : http://www.eclipselink.org

EJB 2.1 session bean calling EJB 3 session bean?

I have a WL 10 (JDK 1.5/EE 5) server that has several EJB 3 stateless session beans deployed and working well. But now I need to allow a JBoss 3.2.3 (JDK 1.4) EJB 2.1 session bean make remote calls into these EJB 3 EJBs. Can this even work?
It seems to me that EJB 3 calling EJB 2 would be fine, but not in the reverse?

I have a WL 10 (JDK 1.5/EE 5) server that has several EJB 3 stateless session beans deployed and working well. But now I need to allow a JBoss 3.2.3 (JDK 1.4) EJB 2.1 session bean make remote calls into these EJB 3 EJBs. Can this even work?
It seems to me that EJB 3 calling EJB 2 would be fine, but not in the reverse?

How can i design a EJB application using session Beans?

Hello,
I am designing a Find application using EJB. Here a user is prompted a search page, where he can enter the search criteria's. Then on click of submit, the query is formed at the server side depending on what criteria's were selected. Then a jdbc query is performed and the results are returned back to the user. Here no session is maintained for the users. Can anyone suggest me how to design this application using EJB. Should i use entity beans for this or session beans will suffice? Should the jdbc query be performed in the bean itself or should it be outside in a helper class? Please kindlu suggest me the design for this application...
Regards,
Subbu

Hi,
First of all, I'm unable to figure out why you need to use EJB for this scenario. You can write a helper class to frame and execute the query.
If you really want to use EJB, then I suggest you use a stateless Session Bean with transaction attribute as TX_NOT_SUPPORTED. From the session bean, you can call the helper class. But, by avoiding the session bean, you can eliminate remote calls, thus improving your performance. Also, check if the database & the db driver you are using supports sql caching.
Regards,
Raj.

How to call a EJB method from Session bean method

Hi all,
I'm new to J2EE programming. I have a simple doubt .
I have already created a lookup method for EJB bean in Session bean .
My question is how to call a method of an ENTITY bean (say insertRow) from SESSION bean method(Say invoke_insertRow) .
Please provide me an example code .
Thanks in advance.

InitialContext ctx = new InitialContext();
     GeneralEditor editor = (GeneralEditor) ctx
                    .lookup("GeneralEditorBean/remote");
          GeneralService service = (GeneralService) ctx
                    .lookup("GeneralServiceBean/remote");
          LanMu lm = new LanMu();
          lm.setName("shdfkhsad");
          editor.add(lm);

How do I lookup an EJB 3.0 Session bean from servlet or JSP?

Does anyone knows how can I invoke an EJB from a servlet or JSP ?
I deployed a simple EJB on a Oracle Application Server 10g release 10.1.3 and I'm working with JDeveloper 10.1.3. I deployed the files via JDeveloper, and I didn´t specify any orion-ejb-jar.xml or ejb-jar.xml file
After deployment, the orion-ejb-jar.xml look like this in the server:
<?xml version="1.0" encoding="utf-8"?>
<orion-ejb-jar xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://xmlns.oracle.com/oracleas/schema/orion-ejb-jar-10_0.xsd" deployment-version="10.1.3.0.0" deployment-time="10b49516c8f" schema-major-version="10" schema-minor-version="0" >
<enterprise-beans>
<session-deployment name="HolaMundoEJB" location="HolaMundoEJB" local-location="HolaMundoEJB_HolaMundoEJBLocal" local-wrapper-name="HolaMundoEJBLocal_StatelessSessionBeanWrapper6" remote-wrapper-name="HolaMundoEJB_StatelessSessionBeanWrapper7" persistence-filename="HolaMundoEJB.home_default_group_1">
</session-deployment>
</enterprise-beans>
<assembly-descriptor>
<default-method-access>
<security-role-mapping name="<default-ejb-caller-role>" impliesAll="true" />
</default-method-access>
</assembly-descriptor>
</orion-ejb-jar>
I'm trying to invoke the ejb in a servlet by doing the following:
public void doGet(HttpServletRequest request, ....
Context context = new InitialContext();
HolaMundoEJB helloWorld =
(HolaMundoEJB)context.lookup("java:com/env/ejb/HolaMundoEJB");
String respuesta = helloWorld.sayHello("David");
When i invoke the servlet I catch a NamingException whose message says something
like this ....java:com/env/ejb/HolaMundoEJB not found in webLlamaEJB
I tried different paths for the lookup but nothing....
Can anyone help me with this topic? Thank you.

Please try the following code:
HelloEJBBean.java:
@Stateless(name="Hello")
@Remote(value={Hello.class})
public class HelloEJBBean implements Hello { ... }
hello.jsp:
Context ctx = new InitialContext();
Hello h = (Hello)ctx.lookup("ejb/Hello");
web.xml:
<ejb-ref>
<ejb-ref-name>ejb/Hello</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<remote>fi.kronodoc.test.model.Hello</remote>
</ejb-ref>
i think you should also define jndi mappings for the references in orion-ejb-jar.xml and orion-web.xml but for some reason it seems to be working also without these.

Creating EJB 3.0 Session Bean under JDeveloper 10g.

Hello im using JDeveloper 10 g all up 2 date.
when i create EJB 2.x EJB everythink is ok .. there is a Wizzard(Designer) from which i can add methods variables and etc.
all methods are become added to the session bean / remote interefeis etc.
My Problem is when i create EJB 3.0
when i do it the Bean class is created and the Remote interfeis with @remote is created too its ok BUT I CANT see Remote interfeis in my Application Naviagation its fine under 2.1 i cannot see remote interfeis and home interfeis too but inder 2.1 there is a wizzard(Designer) under 3.0 there is nothink.
what am i wrong ? how can i make designer to work under 3.0 or how can i make Jdeveloper to show me all content of the EJBs

another strange problem.
i have an APplication server added ( JBOSS ).
when i create deployment profile (EAR ) application server is showed in the ComboBox .
But when i create Java Test Client for some EJB and when i check " Connect Remote Application server" there is 2 comboboxes
J2EE Application
App Server Connection.
first combo is ok there is EJB applicaiton
Secound is empty .. but i Have App Server.
Another think is that when i create EJB 3.0 its BAD to see J2EE app it must be J EE 5 app or just Java EE app

EJB 3.0 Session Bean Inheritence

Hi all,
Can one stateless session bean extend another? I get "no" for an answer during deployment of my EJB module. I'm using NetBeans 5.5 with Sun App Server 9.0.
For example:
@Stateless
MySessionBean1 implements ...some remote interface {
@Stateless
MySubBean extends MySessionBean1 implements some more interfaces {
}

There is no support for "component" inheritance in EJB. You are free to use implementation
inheritance to implement your bean class, but the fact that a super-class happens to be the
bean class of a different EJB has no bearing on the processing of the sub-class. So, for example,
the fact that MySessionBean1 has "some remote interface" will not automatically make
"some remote interface" one of MySubBean's remote interfaces.
--ken

EJB 3.0 Session bean transfers null Entity

Hello all
I am having trouble trying to transfer an Entity from a stateful session bean to a JSP. When I try an identical method with a java client within the OC4J container of JDeveloper, it works fine. However when I deploy the application to OracleAS 10.1.3, I get a null pointer on the entity.
Please help. I have been stuck on this for about 3 weeks, and I've followed documentation to the letter as far as I can see.
Here is the code for the JSP, the (simplified) bean and the Entity in question.
Bean:
import java.util.List;
import javax.annotation.Resource;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.Query;
@Stateful(name="cart")
public class CartBean implements CartRemote, CartLocal {
    @Resource
    protected EntityManager manager;
    public CartBean() {
         public User getUser(String username){
                User user = manager.find(User.class, username);
         return user;
    }The JSP:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="com.evotec.ereq.CartLocal" %>
<%@ page import="com.evotec.ereq.User" %>
<%@ page import="javax.naming.InitialContext" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%!String m_username = "pbarrett";%>
<%!String emailAddress = "";%>
<%
try {
    InitialContext ctx = new InitialContext();
    CartLocal cart = (CartLocal) ctx.lookup("java:comp/env/cart");
        User user = cart.getUser(m_username);
        emailAddress = user.getEmailAddress();
%>
<html>
<body>
you are: <%= m_username %><BR>
your email address is: <%= emailAddress %><BR>
</body>
</html>
<%
catch (Exception e){
    e.printStackTrace();
%>and the User entity:
import java.io.Serializable;
import java.sql.Timestamp;
import static javax.persistence.AccessType.FIELD;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.Id;
@Entity(access=FIELD)
@Table(name="USERS")
public class User implements Serializable {
    @Column(name="CREATION_DATE")
    protected Timestamp creationDate;
    @Column(name="DISPLAY_NAME")
    protected String displayName;
    @Column(name="EMAIL_ADDRESS")
    protected String emailAddress;
    @Id
    @Column(name="USERNAME")
    protected String username;
    @Column(name="USER_ID")
    protected Long userId;
    @Column(name="USER_STATUS")
    protected Long userStatus;
    public User() {
          //JDeveloper-generated getters and setters
}I should point out that I have established that the null pointer is not coming from the CartLocal lookup.
Any help welcome, thanks in advance.
Paul

Hi,
Thanks for the quick response.
I have tried this approach before but when I try and deploy to the server, I get this message:
@PersistenceContext annotation can only be used when a javax.spi.PersistenceProvider is installed.
Is this a missing jar file? If so, which one?
Thanks
Paul

EJB 3.0 Session Bean Remote Client

Hi,
I am planning to migrate my EJB 2.1 to EJB 3.0. My old session bean is accessed by a remote java client. I just have to include this piece of code:
Hashtable props = new Hashtable();
props.put("java.naming.factory.initial", com.sun.jndi.cosnaming.CNCtxFactory");
props.put("java.naming.provider.url", "iiop://" + host_ + ":" + port_);I also have to generate rmistubs for the ejb. I have deployed my EJB 3.0 in a Sun Appserver, checking the "Generate RMIStubs" box but I couldn't find the client jar file. In EJB 3.0, should I use the same approach as the 2.1? Or should I use the @EJB annotation? How will I access a remote EJB 3.0 using the @EJB annotation? Thanks in advance.
Regards,
Andrew
Message was edited by:
bashdrew

EJB 3.0 remote business interfaces are do not have the same interoperability requirements as the EJB 2.x Home/Remote view. If you need access to your EJB 3.0 bean from a legacy client, you can add a 2.x-style Home/Remote view to your bean by either using the <home>/<remote> elements in ejb-jar.xml or the @RemoteHome annotation. Note that the 2.x-style Home/Remote interfaces are completely separate from the 3.0 Remote Business interface.
Also, in SUN's implementation if your EJB 3.0 bean has both a 3.0 Remote business and a 2.x Home/Remote interface there is no default global JNDI name for the bean. You'll need to assign it explicitly using the @Stateless/@Stateful mappedName() attribute or sun-ejb-jar.xml.
--ken

EJB 3.0 Session Bean question

Hi there,
How'd I expose a method of Stateless Session Bean in EJB 3.0? I don't seem to find any annotation for that.
Thanks in advance.
Saeed

If you need to expose method implemented in Session bean, you can invoke the method call from within another method called in Client.
This method has to be defined in the remote interface . The method you are trying to invoke can be defined somewhere else but called in your bean class from within the method definedin the remote interface.

Creating and deploying ejb 3.0 session bean with annotated pojo

I try to create and deploy a EJB 3.0 stateless session bean (and associated webservice) with the following steps:
1) Create Interface "Repository"
package de.xxx.config;
import java.rmi.Remote;
import java.rmi.RemoteException;
import javax.jws.WebMethod;
import javax.jws.WebService;
@WebService
public interface Repository extends Remote {
     @WebMethod(operationName = "findCampaignByChannel")
     public String findCampaignByChannel(String channelName) throws RemoteException;
2) create dummy "RepositoryImpl"
package de.xxx.config;
import java.rmi.RemoteException;
import javax.ejb.Stateless;
import javax.jws.WebService;
@WebService(endpointInterface="de.xxx.config.Repository")
@Stateless
public class RepositoryImpl implements Repository {
     public String findCampaignByChannel(String channelName) throws RemoteException {
          return null;
3) The two class files are packaged into a jar without any further descriptors
4) The jar is deployed with admin_client into the oc4j instance using the commands:
-deploy -file <jarfile> -deploymentName <name>
Result:
An ear was constructed and started but no session bean or webservice is found (using the console). But according to to the docs a jar file without a ejb-jar.xml should be recognized as a EJB 3.0 ejb-jar file and the necessary steps to create session bean and expose webservice should be done automatically.
My question:
Which step do i miss here ?
Tools used:
Eclipse 3.2 for the jar file
SoaSuite 10.1.3.1 for oc4j

another strange problem.
i have an APplication server added ( JBOSS ).
when i create deployment profile (EAR ) application server is showed in the ComboBox .
But when i create Java Test Client for some EJB and when i check " Connect Remote Application server" there is 2 comboboxes
J2EE Application
App Server Connection.
first combo is ok there is EJB applicaiton
Secound is empty .. but i Have App Server.
Another think is that when i create EJB 3.0 its BAD to see J2EE app it must be J EE 5 app or just Java EE app

Multiple inheritance in remote interfaces for EJB 3.0 session beans on Webl

Hi All,
We started migration from EJB 2.1(WLS 8.1) to EJB 3.0(WLS 10.3.2) and identified few serious problems. One of them is related with multiple business interfaces inheritance. I wrote simple example that presents point of the problem.
we have session bean AImpl:
+@Stateless(name="A")+
+@Remote({A.class})+
+@TransactionAttribute(TransactionAttributeType.REQUIRED)+
+public class AImpl implements A {+
+@Override+
+public void writeA() {+
System.out.println("A");
+}+
+@Override+
+public void writeB() {+
System.out.println("B");
+}+
+@Override+
+public void writeC() {+
System.out.println("C");
+}+
+}+
with remote interface A:
+@Remote+
+@JNDIName(A.JNDI_NAME)+
+public interface A extends B, C {+
public static String JNDI_NAME = "A_JNDI_NAME";
void writeA();
+}+
As you can see A extends B, and C. Definition of both interfaces is very simple:
+public interface B {+
void writeB();
+}+
+public interface C {+
void writeC();
+}+
Everything looks nice until we want to invoke some method on AImpl bean. For above implementation code:
A a = ctx.lookup(A. JNDI_NAME);
a.writeA();
a.writeB();
a.writeC();
writes down ”A \n B” and throws exception:
caused by: java.lang.NoSuchMethodException: pl.gov.arimr.zszik.bazowe.slowniki.ejb.A_vt0zts_AImpl_1032_WLStub.*writeC()*
at java.lang.Class.getMethod(Class.java:1605)
at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.getTargetMethod(RemoteBusinessIntfProxy.java:165)
at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:57)
so.. in stub generated by WLS there is no method from interface C ! What more interesting after small change in interface A rely on change in interface implementation order from B, C to C, B (+public interface A extends C, B {+) server writes down only A and I have stack like below:
Caused by: java.lang.NoSuchMethodException: pl.gov.arimr.zszik.bazowe.slowniki.ejb.A_vt0zts_AImpl_1032_WLStub.*writeB()*
at java.lang.Class.getMethod(Class.java:1605)
at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.getTargetMethod(RemoteBusinessIntfProxy.java:165)
at weblogic.ejb.container.internal.RemoteBusinessIntfProxy.invoke(RemoteBusinessIntfProxy.java:57)
After this experience I came up with suspicion that Weblogic 10.3 does not support inheritance from multiple interfaces in one “generation”. Instead of that it takes only the first interface from the list.
Does anybody have some experience with such a situation? maybe someone have an idea how to work around this problem?

This is Not Supported in WebLogic that the Remote Interface extends other Interfaces. Because Annotation Processor just looks up inside the implemented interface methods. The actual interface which is Implemented by the Bean Class. So the Methods declared inside the Interface B and Interface C will be ignored and will not be available as part of the generated Stubs. Thats why u are getting NoSuchMethodError.
You can even contact Oracle Support on this...there are 3-4 Cases on it. And the Solution is Work As Designed.
Workaround is : edit your interface A as following
Declare all the Business Methods only in the Remote Interface and not inside it's Super Interfaces.
Example:
@Stateless(name="A")
@Remote({A.class})
@TransactionAttribute(TransactionAttributeType.REQUIRED)
public class AImpl implements A {
@Override
public void writeA() {
System.out.println("A");
@Override
public void writeB() {
System.out.println("B");
@Override
public void writeC() {
System.out.println("C");
@Remote
@JNDIName(A.JNDI_NAME)
public interface A extends B, C {
public static String JNDI_NAME = "A_JNDI_NAME";
void writeA();
void writeB();
void writeC();
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here)

A tough one for EJB experts - Stateless session bean spec question

I am busy learning more about EJBs and came across something confusing regarding the legal operations in the various container callback methods for stateless session beans.
Specifically, the EJB spec states that in the ejbCreate() method, the SessionContext can be used to obtain a reference to the EJB Object. Now this makes perfect sense with stateful session beans, since the ejbCreate() method isn't called until a client is creating a bean and the container has linked that bean to the client's EJB Object. However, it is my understanding that when it comes to stateless session beans, the container creates the beans and adds them to the bean pool at its leisure. It is not until a business method is called by a client that a stateless bean is actually linked to an EJB object. So, how is it that a stateless bean could ever obtain a reference to an EJB Object from within ejbCreate(). Which EJB Object would it be linked to? This operation just doesn't appear to make sense in that context.
Can anyone clarify this for me?

Interesting question. I have such questions all the time! Here's a link to a similar discussion
http://saloon.javaranch.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic&f=70&t=000905
Also, I tried this using Weblogic 8.1. Tried to access the EJBObject in ejbCreate before any business method was invoked. I did this by specifying a value for initial-beans-in-free-pool and found that the hash code for the EJBObject was the same for all the bean instances that were created on startup.
I then invoked a business method and accessed the EJBObject in that method. Again the hash code for the object was the same as the one created on startup.
Seemed to be that there is a 1:n relation between the EJBObject and bean instances.
This may be container specific. The spec says the user should be able to invoke the getEJBObject() method in ejbCreate(), its upto the container to comply with it.

EJB QL in Session Beans?

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