3 Replies Latest reply on Nov 17, 2003 9:03 AM by moghrabi

EJB entity - relation

moghrabi Oct 30, 2003 2:38 AM

Hi,

I developped two entity Beans.
Client and Adresse. There is a One to Many relation between them.
I can deploy the EJBs, and use them without having any problem ! But when I try to use the method getClient(), setClient(), getAddress() or setAddress(), I get an error at the execution.

Before calling the method setClient, I make a println of my Client and I get : ClientBean:6 (my Client is not null)

I put the desciptors at the end of the message.
If u can help me ...
Thx

MyCode :
comm.Adresse myAdresse = getHome().create("15","rue du diamant","75000","Paris","France");
comm.Client myClient = getClientHome().create("Client2");
System.out.println(myAdresse);
System.out.println(myClient);

myAdresse.setClient(myClient);

Errors :

java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.ServerException: EJBException:; nested exception is:
javax.ejb.EJBException: null; CausedByException is:
null
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknown Source)
at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:135)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:45)
at org.jboss.proxy.ejb.EntityInterceptor.invoke(EntityInterceptor.java:97)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
at $Proxy1.setClient(Unknown Source)
at test.TestClientAdresse.testBean(TestClientAdresse.java:66)
at test.TestClientAdresse.main(TestClientAdresse.java:90)
Caused by: java.rmi.ServerException: EJBException:; nested exception is:
javax.ejb.EJBException: null; CausedByException is:
null
at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:347)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:195)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.EntityContainer.internalInvoke(EntityContainer.java:490)
at org.jboss.ejb.Container.invoke(Container.java:700)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367)
at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)
Caused by: javax.ejb.EJBException: null; CausedByException is:
null
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setInstanceValue(JDBCCMRFieldBridge.java:745)
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setValue(JDBCCMRFieldBridge.java:590)
at org.jboss.ejb.plugins.cmp.bridge.EntityBridgeInvocationHandler.invoke(EntityBridgeInvocationHandler.java:121)
at org.jboss.proxy.compiler.Runtime.invoke(Runtime.java:59)
at comm.AdresseCMP$Proxy.setClient()
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.ejb.EntityContainer$ContainerInterceptor.invoke(EntityContainer.java:1095)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCRelationInterceptor.invoke(JDBCRelationInterceptor.java:71)
at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:277)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke(EntityReentranceInterceptor.java:114)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstanceInterceptor.java:163)
at org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:89)
at org.jboss.ejb.plugins.EntityCreationInterceptor.invoke(EntityCreationInterceptor.java:54)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
... 20 more

In the JBoss Log there is :

2003-10-29 17:51:20,089 ERROR [org.jboss.ejb.plugins.LogInterceptor] EJBException, causedBy:
java.lang.ClassCastException
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setInstanceValue(JDBCCMRFieldBridge.java:734)
at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setValue(JDBCCMRFieldBridge.java:590)
at org.jboss.ejb.plugins.cmp.bridge.EntityBridgeInvocationHandler.invoke(EntityBridgeInvocationHandler.java:121)
at org.jboss.proxy.compiler.Runtime.invoke(Runtime.java:59)
at comm.AdresseCMP$Proxy.setClient()
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.ejb.EntityContainer$ContainerInterceptor.invoke(EntityContainer.java:1095)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCRelationInterceptor.invoke(JDBCRelationInterceptor.java:71)
at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke(EntitySynchronizationInterceptor.java:277)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:185)
at org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke(EntityReentranceInterceptor.java:114)
at org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityInstanceInterceptor.java:163)
at org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockInterceptor.java:89)
at org.jboss.ejb.plugins.EntityCreationInterceptor.invoke(EntityCreationInterceptor.java:54)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.EntityContainer.internalInvoke(EntityContainer.java:490)
at org.jboss.ejb.Container.invoke(Container.java:700)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367)
at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
at sun.rmi.transport.Transport$1.run(Transport.java:148)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:534)

ejb-jar.xml :
...



<ejb-relation>

<ejb-relation-name>Client-Adresse</ejb-relation-name>
<ejb-relationship-role>
<ejb-relationship-role-name>Client-possede-Adresses</ejb-relationship-role-name>
One
<relationship-role-source>
<ejb-name>Client</ejb-name>
</relationship-role-source>
<cmr-field>
<cmr-field-name>adresses</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>

<ejb-relationship-role>
<ejb-relationship-role-name>Adresse-correspond-a-un-Client</ejb-relationship-role-name>
Many
<cascade-delete/>

<relationship-role-source>
<ejb-name>Adresse</ejb-name>
</relationship-role-source>

<cmr-field>
<cmr-field-name>client</cmr-field-name>
</cmr-field>
</ejb-relationship-role>

</ejb-relation>

...

jbosscmp-jdbc.xml :
...


<ejb-relation>
<ejb-relation-name>Client-Adresse</ejb-relation-name>
<foreign-key-mapping/>

<ejb-relationship-role>
<ejb-relationship-role-name>Client-possede-Adresses</ejb-relationship-role-name>
<key-fields>
<key-field>
<field-name>id</field-name>
<column-name>client</column-name>
</key-field>
</key-fields>
</ejb-relationship-role>

<ejb-relationship-role>
<ejb-relationship-role-name>Adresse-correspond-a-un-Client</ejb-relationship-role-name>
<key-fields/>
</ejb-relationship-role>
</ejb-relation>

...

1. Re: EJB entity - relation

tlh Nov 1, 2003 10:03 AM (in response to moghrabi)

when u create the address did u check if that row u just entered has no NULL value in that table ?
Actions
2. Re: EJB entity - relation

darranl Nov 3, 2003 4:22 AM (in response to moghrabi)

Is your client code running inside the JBoss JVM (In a session bean or servlet)?

Are you using the local interfaces for the relationship?
Actions
3. Re: EJB entity - relation

moghrabi Nov 17, 2003 9:03 AM (in response to moghrabi)

Hello,

I've found the bug thanks your help. It was because I didn't use local interfaces for the relationshi^p.

Thanks a lot.

Xavier
Actions

Go to original post