I've seen problems like this with other EJB servers when my classpath was
wrong or pointing to a different version of the class.
-Alexandre
On Fri, 01 Sep 2000 09:46:28 -0400
Richard Deadman <[EMAIL PROTECTED]> wrote:
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Rickard,
I am using JBoss 2.0. Here is my ejb-jar.xml:
-------
<?xml version="1.0" encoding="Cp1252"?>
<ejb-jar>
<description>jBoss test application </description>
<display-name>Test</display-name>
<enterprise-beans>
<entity>
<description>Models a User</description>
<ejb-name>UserBean</ejb-name>
<home>ca.deadman.User.UserHome</home>
<remote>ca.deadman.User.User</remote>
<ejb-class>ca.deadman.User.UserEJB</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>ca.deadman.User.UserPK</prim-key-class>
<reentrant>False</reentrant>
<cmp-field><field-name>id</field-name></cmp-field>
<cmp-field><field-name>firstName</field-name></cmp-field>
<cmp-field><field-name>lastName</field-name></cmp-field>
<cmp-field><field-name>address</field-name></cmp-field>
<cmp-field><field-name>city</field-name></cmp-field>
<cmp-field><field-name>region</field-name></cmp-field>
<cmp-field><field-name>country</field-name></cmp-field>
<cmp-field><field-name>postalCode</field-name></cmp-field>
<cmp-field><field-name>telephone</field-name></cmp-field>
<cmp-field><field-name>email</field-name></cmp-field>
<primkey-field>id</primkey-field>
</entity>
</enterprise-beans>
</ejb-jar>
----
My UserPK class identifies one public variable:
public String id;
My UserEJB class identifies the same variable:
public String id;
My UserHome defines:
public User findByPrimaryKey(UserPK key)
throws FinderException, RemoteException;
When I run a test program to findByPrimaryKey with a parameter of type
UserPK, the EJB container throws:
--------
[UserBean] java.rmi.ServerException: Load failed; nested exception is:
[UserBean] java.lang.ClassCastException: ca.deadman.User.UserPK at
org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.setParameter(JAWSPersist
enceManager.java:1306)[UserBean]
java.lang.ClassCastException: ca.deadman.User.UserPK
at
org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.loadEntity(JAWSPersisten
ceManager.java:629)[UserBean]
at
org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.setParameter(JAWSPersist
enceManager.java:1306)
[UserBean] at
org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke
(EntitySynchronizationInterceptor.java:240) at
org.jboss.ejb.plugins.EntityS
ynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:240
)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.
java:82)
[UserBean] at
org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.loadEntity(
JAWSPersistenceManager.java:629)
at
org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstance
Interceptor.java:88)[UserBean] at
org.jboss.ejb.plugins.SecurityInterceptor.inv
oke(SecurityInterceptor.java:82)
at
org.jboss.ejb.plugins.TxInterceptor.invoke(TxInterceptor.java:179)
at
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:140)[
UserBean] at
org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(Entity
InstanceInterceptor.java:88)
[UserBean] at
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.ja
va:140) at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:212)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke(JRMPCon
tainerInvoker.java:129)
at java.lang.reflect.Method.invoke(Native Method)[UserBean] at
org.j
boss.ejb.EntityContainer.invoke(EntityContainer.java:212)
[UserBean] at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invoke
(JRMPContainerInvoker.java:129)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown
Source)[UserBean]
at java.lang.reflect.Method.invoke(Native Method)
[UserBean] at sun.rmi.server.UnicastServerRef.dispatch(Unknown
Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native
Method)[UserBean]
at sun.rmi.transport.Transport$1.run(Unknown Source)
[UserBean] at java.security.AccessController.doPrivileged(Native
Method)
at sun.rmi.transport.Transport.serviceCall(Unknown
Source)[UserBean]
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown
Source)
[UserBean] at
sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown
Sou
rce)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown
Sour
ce)[UserBean] at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unkn
own Source)
at java.lang.Thread.run(Unknown Source)
[UserBean] at java.lang.Thread.run(Unknown Source)
[Default] java.rmi.ServerException: Load failed; nested exception is:
java.lang.ClassCastException: ca.deadman.User.UserPK
[Default] java.lang.ClassCastException: ca.deadman.User.UserPK
[UserBean] at
org.jboss.ejb.plugins.TxInterceptor.invoke(TxInterceptor.java
:179)
Any ideas? Thanks
Richard
--
Rickard �berg wrote:
> Richard Deadman wrote:
> > I'm trying to move an CMP entity bean with a PrimaryKey defined in its
> > own class (i.e. UserPK) into JBoss. This class has one field (id)
that
> > is a String and that maps to one of the bean's attributes that I have
> > mapped through JAWS to a VARCHAR field.
> >
> > The problem is that when I call "UserHome.findByPrimaryKey(key)",
JBoss
> > gets upset because it is expecting key to be a String not a UserPK
> > object. ClassCastException and all that.
> >
> > I'm moving an EJB built using VisualCafe wizards and this is how the
> > wizards construct the bean. Is VisualCafe wrong? Do I need to do
some
> > mapping to tell JAWS to extract the real key somehow from the object?
> > Is this just a limitation of JBoss for now?
>
> There is no such limitation. I'm guessing that your ejb-jar.xml is
> weird. Can you please provide it?
>
> /Rickard
>
> --
> Rickard �berg
>
> Email: [EMAIL PROTECTED]
> http://www.telkel.com
> http://www.jboss.org
> http://www.dreambean.com
>
> --
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---
Alexandre POLOZOFF
Project: Diamond Technology Partners
Project Email: [EMAIL PROTECTED]
Tel +1 312-475-8751
Mobile +1 312-371-3015
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Date: Fri, 01 Sep 2000 09:46:28 -0400
From: Richard Deadman <[EMAIL PROTECTED]>
Organization: Deadman Consulting
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To: jBoss <[EMAIL PROTECTED]>
Subject: Re: [jBoss-User] Complex Primary key for CMP entity bean
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