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

    EJB entity - relation

    Xavier MOGHRABI Newbie

      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 :
      ...
      <!-- Relationships -->

      <!-- RELATION ENTRE CLIENT ET ADRESSE -->
      <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 :
      ...
      <!-- Ajout relationship SF 29/10/03 -->

      <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>

      ...