Hello,
I am somewhat new to EJB and entity beans. I am trying to write the tags
for my relationships. I have tables with compound primary keys. One
question I have is about the primkey-field of @ejb.bean. How do we handle
the situation where we have compound primary keys in our tables? I have put
@ejb.pk-field on all my persistent fields that are primary keys, and my
PrimaryKey classes are being generated correctly, but how do we handle them
in terms of relationship mapping? I am getting the following error when
JBOSS starts up:
org.jboss.deployment.DeploymentException: At least one role of a foreign-key
mapped relationship must have key fields (or <primkey-field> is missing from
ejb-jar.xml): ejb-relation-name=participant-service-history
I have some example code below.
Thank you in advance.
Peter
/**
* @author pwileycordone
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*
* @ejb.bean
* name = "Participant"
* display-name = "Participant Entity Bean"
* description = "Participant CMP Entity Bean"
* view-type = "local"
* type = "CMP"
* cmp-version="2.x"
*
* @ejb.transaction
* type = "Required"
*
* @ejb.pk
*
* @ejb.value-object
* match = "light"
* name="ParticipantLight"
*
* @ejb.value-object
* name = "Participant"
* match = "*"
*
* @ejb.persistence table-name="employee"
*
* @jboss.datasource="ACGDB"
* @jboss.create-table "false"
* @jboss.remove-table "false"
* @jboss.tuned-updates "true"
* @jboss.read-only "false"
* @jboss.time-out "100"
*/
public abstract class ParticipantBOEJB implements EntityBean
{
...
/**
* @ejb.interface-method
*
* @ejb.relation
* name="participant-service-history"
* role-name="participant-has-service-history"
*
* @ejb.value-object
* aggregate="com.divinvest.dbol.valueobject.ServiceVO"
* aggregate-name="Service"
* members="com.divinvest.dbol.ejb.ServiceLocal"
* members-name="ServiceHistory"
* relation="external"
* type="java.util.Set"
*/
public abstract Set getServiceHistory();
/** @ejb.interface-method */
public abstract void setServiceHistory(Set entries);
...
And here is some code from the service class
/**
* @author pwileycordone
*
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
*
* @ejb.bean
* name = "Service"
* display-name = "Service Entity Bean"
* description = "Service CMP Entity Bean"
* view-type = "local"
* type = "CMP"
* cmp-version="2.x"
*
* @ejb.transaction
* type = "Required"
*
* @ejb.value-object
* name = "Service"
* match = "*"
*
* @ejb.persistence table-name="service"
*
* @jboss.datasource="ACGDB"
* @jboss.create-table "false"
* @jboss.remove-table "false"
* @jboss.tuned-updates "true"
* @jboss.read-only "false"
* @jboss.time-out "100"
*/
public abstract class ServiceBOEJB implements EntityBean
{
...
/**
* @ejb.interface-method
*
* @ejb.relation
* name="participant-service-history"
* role-name="service-belongs-to-participant"
* cascade-delete="yes"
*/
public abstract ParticipantLocal getParticipant();
/** @ejb.interface-method */
public abstract void setParticipant(ParticipantLocal value);
}
Peter N. Wiley-Cordone
Internet/System Developer
Diversified Actuarial Services Inc.
275 Grove Street
Suite 2-300
Newton, MA 02466
Phone (617) 663-1225
Fax (617) 559-0498
[EMAIL PROTECTED]
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