EJB relation - exception in DBCCMRFieldBridge.setInstanceVal

[marekss]

Hi all,

I would llike to ask you for help. I have a problem with setting the relation - there are 2 entity beans with ONE to MANY relationship (see ejb-jar.xml). When I try to set SenavigatorLink on Senavigator (using Collection) I get the following exception :



20:07:48,311 ERROR [STDERR] javax.ejb.EJBException: null; CausedByException is:
null
20:07:48,311 ERROR [STDERR] at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setInstanceValue(JDBCCMRFieldBridge.java:673)
20:07:48,311 ERROR [STDERR] at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setValue(JDBCCMRFieldBridge.java:541)
20:07:48,321 ERROR [STDERR] at org.jboss.ejb.plugins.cmp.bridge.EntityBridgeInvocationHandler.invoke(EntityBridgeInvocationHandler.java:126)
20:07:48,321 ERROR [STDERR] at org.jboss.proxy.compiler.Runtime.invoke(Runtime.java:59)
20:07:48,321 ERROR [STDERR] at testrelation.SenavigatorBean$Proxy.setSenavigatorlinks()
20:07:48,321 ERROR [STDERR] at testrelation.SenavigatorBean.setLink(SenavigatorBean.java:93)
20:07:48,321 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
20:07:48,321 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)


This exception is thrown by this portion of code in setInstanceValue method of JDBCCMRFieldBridge :

try
{
// Remove old value(s)
List valuesCopy = new ArrayList(fieldState.getValue());
Iterator relatedKeys = valuesCopy.iterator();
while(relatedKeys.hasNext())
destroyRelationLinks(myCtx, relatedKeys.next());

// Add new value(s)
if(newPkValues != null)
{
for(Iterator iter = newPkValues.iterator(); iter.hasNext();)
createRelationLinks(myCtx, iter.next());
}
else
{
while(newBeans.hasNext())
{
EJBLocalObject newBean = (EJBLocalObject)newBeans.next();
createRelationLinks(myCtx, newBean.getPrimaryKey());
}
}
}
catch(EJBException e)
{
throw e;
}
catch(Exception e)
{
throw new EJBException(e);
}

But I really do not know the right reason of that exception (with null argument???). Please, if you have any idea I would appreciate it. Thanks a lot.

Cheers
Mark




ejb-jar.xml:
=========

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar id="ejb-jar_ID">
<display-name>Treloation</display-name>
<enterprise-beans>

<display-name>Senavigator</display-name>
<ejb-name>Senavigator</ejb-name>
testrelation.SenavigatorHome
testrelation.Senavigator

<ejb-class>testrelation.SenavigatorBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
False
<cmp-version>2.x</cmp-version>
<abstract-schema-name>Senavigator</abstract-schema-name>

<cmp-field id="CMPAttribute_1078145935263">
<field-name>senaid</field-name>
</cmp-field>
<primkey-field>senaid</primkey-field>

<ejb-ref>
<ejb-ref-name>ejb/SenavigatorlinkRef</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-type>
testrelation.SenavigatorlinkHome
testrelation.Senavigatorlink
<ejb-link>Senavigatorlink</ejb-link>
</ejb-ref>




<display-name>Senavigatorlink</display-name>
<ejb-name>Senavigatorlink</ejb-name>
testrelation.SenavigatorlinkHome
testrelation.Senavigatorlink
<ejb-class>testrelation.SenavigatorlinkBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
False
<cmp-version>2.x</cmp-version>
<abstract-schema-name>Senavigatorlink</abstract-schema-name>

<cmp-field id="CMPAttribute_1078145935724">
<field-name>senalid</field-name>
</cmp-field>
<primkey-field>senalid</primkey-field>

</enterprise-beans>


<ejb-relation id="Relationships_1078145947491">
<ejb-relation-name>senavigator-senavigatorlink</ejb-relation-name>

<ejb-relationship-role id="EJBRelationshipRole_1078145947451">
senavigator
<ejb-relationship-role-name>SenavigatorRelationshipRole</ejb-relationship-role-name>
One
<relationship-role-source>
senavigator
<ejb-name>Senavigator</ejb-name>
</relationship-role-source>
<cmr-field>
senavigatorlinks
<cmr-field-name>senavigatorlinks</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>

<ejb-relationship-role id="EJBRelationshipRole_1078145947481">
senavigatorlink
<ejb-relationship-role-name>SenavigatorlinkRelationshipRole</ejb-relationship-role-name>
Many
<relationship-role-source>
senavigatorlink
<ejb-name>Senavigatorlink</ejb-name>
</relationship-role-source>
</ejb-relationship-role>

</ejb-relation>

<assembly-descriptor>
<container-transaction id="MethodTransaction_1078145935674">

<ejb-name>Senavigator</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction id="MethodTransaction_1078145935994">

<ejb-name>Senavigatorlink</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>