1 Reply Latest reply on Dec 24, 2006 10:06 AM by Sebastian Cramer

    XDoclet shortcoming?

    Sebastian Cramer Newbie

      Hello and merry christmas to everybody.

      I'm using JBossIDE 2.0.0beta2.
      The problem I am facing is with relations and the unknown-pk feature. I have two CMP EJBs:

      package de.chitec.physio.server.ejb;
      
      import java.rmi.RemoteException;
      import java.util.Date;
      
      import javax.ejb.EJBException;
      import javax.ejb.EntityBean;
      import javax.ejb.EntityContext;
      import javax.ejb.RemoveException;
      
      import org.apache.log4j.Logger;
      
      /**
       * @ejb.bean
       * name="CMPPerson"
       * display-name="CMPPerson"
       * description="Description for CMPPerson"
       * jndi-name="ejb/CMPPerson"
       * type="CMP"
       * cmp-version="2.x"
       * view-type="local"
       * reentrant = "false"
       * local-jndi-name = "ejb/CMPPerson"
       *
       * @ejb.persistence
       * table-name = "person"
       *
       * @ejb.pk
       * class="java.lang.Object"
       *
       * @ejb.finder
       * signature="java.util.Collection findByLastName(java.lang.String pLastName)"
       * query="SELECT Object(o) FROM CMPPerson o WHERE o.lastName LIKE ?1"
       *
       * @jboss.entity-command
       * name = "${jboss.entity.command}"
       * class = "${jboss.entity.class}"
       *
       * @jboss.unknown-pk
       * class="java.lang.Integer"
       * column-name="id"
       * jdbc-type="INTEGER"
       * sql-type="INTEGER"
       * auto-increment="true"
       *
       * @jboss.persistence
       * pk-constraint = "true"
       * table-name = "person"
       *
       */
      public abstract class CMPPersonBean implements EntityBean
      {
      
       public CMPPersonBean()
       {
       }
      
       public void ejbActivate() throws EJBException, RemoteException
       {
       }
      
       public void ejbLoad() throws EJBException, RemoteException
       {
       }
      
       public void ejbPassivate() throws EJBException, RemoteException
       {
       }
      
       public void ejbRemove() throws RemoveException, EJBException, RemoteException
       {
       }
      
       public void ejbStore() throws EJBException, RemoteException
       {
       }
      
       public void setEntityContext(EntityContext ctx) throws EJBException, RemoteException
       {
       }
      
       public void unsetEntityContext() throws EJBException, RemoteException
       {
       }
      
       /**
       * Getter for CMP Field lastName.
       *
       * @return The person's lastname.
       * @ejb.persistent-field
       * @ejb.persistence column-name = "lastname" sql-type = "VARCHAR"
       * @ejb.interface-method view-type="local"
       */
       public abstract String getLastName();
      
       /**
       * Setter for CMP Field lastName.
       *
       * @param pLastName The person's lastname
       * @ejb.interface-method view-type="local"
       */
       public abstract void setLastName(String pLastName);
      
      
       /**
       * Create method.
       *
       * @ejb.create-method view-type = "local"
       */
       public Object ejbCreate(String pLastName) throws javax.ejb.CreateException
       {
       setLastName(pLastName);
       return null;
       }
      
       public void ejbPostCreate(String pLastName, String pFirstName, Date pBirthday) throws javax.ejb.CreateException
       {
       }
      
      
      
      }
      


      as well as

      package de.chitec.physio.server.ejb;
      
      import java.rmi.RemoteException;
      
      import javax.ejb.EJBException;
      import javax.ejb.EntityBean;
      import javax.ejb.EntityContext;
      import javax.ejb.RemoveException;
      
      import de.chitec.physio.server.interfaces.CMPPersonLocal;
      
      /**
       * @ejb.bean
       * name="CMPPatient"
       * display-name="CMPPatient"
       * description="Description for CMPPatient"
       * jndi-name="ejb/CMPPatient"
       * type="CMP"
       * cmp-version="2.x"
       * view-type="local"
       * reentrant = "false"
       * local-jndi-name = "ejb/CMPPatient"
       *
       * @ejb.persistence
       * table-name = "patient"
       *
       * @ejb.pk
       * class="java.lang.Object"
       *
       * @jboss.entity-command
       * name = "${jboss.entity.command}"
       * class = "${jboss.entity.class}"
       *
       * @jboss.unknown-pk
       * class="java.lang.Integer"
       * column-name="id"
       * jdbc-type="INTEGER"
       * sql-type="INTEGER"
       * auto-increment="true"
       *
       * @jboss.persistence
       * pk-constraint = "true"
       * table-name = "patient"
       */
      public abstract class CMPPatientBean implements EntityBean {
      
       public CMPPatientBean() {
       }
      
       public void ejbActivate() throws EJBException, RemoteException {
       }
      
       public void ejbLoad() throws EJBException, RemoteException {
       }
      
       public void ejbPassivate() throws EJBException, RemoteException {
       }
      
       public void ejbRemove() throws RemoveException, EJBException, RemoteException {
       }
      
       public void ejbStore() throws EJBException, RemoteException {
       }
      
       public void setEntityContext(EntityContext ctx) throws EJBException, RemoteException {
       }
      
       public void unsetEntityContext() throws EJBException, RemoteException {
       }
      
       /**
       * Getter for CMR Relationship
       *
       * @ejb.interface-method view-type="local"
       * @ejb.relation name = "Patient-To-Person"
       * role-name = "Patient-To-Person-Role"
       * target-ejb = "CMPPerson"
       * target-role-name = "Patient-Is-Person"
       * target-multiple = "false"
       *
       * @jboss.relation related-pk-field = "id"
       * fk-column = "person"
       *
       */
       public abstract CMPPersonLocal getPerson();
      
       /**
       * Setter for CMR Relationship
       *
       * @ejb.interface-method view-type="local"
       */
       public abstract void setPerson(CMPPersonLocal value);
      
      }
      


      As you can see both CMPs use automagically generated PKs. Now for the problem:

      Both of the contained beans work well if not linked via a relation. As soon as the relation comes in we got a problem. I know how it is supposed to be done (using jbosscmp-jdbc.xml). The relation code should be:

      <ejb-relation>
       <foreign-key-mapping/>
       <ejb-relation-name>Patient-To-Person</ejb-relation-name>
       <ejb-relationship-role>
       <ejb-relationship-role-name>
       Patient-To-Person-Role
       </ejb-relationship-role-name>
       <key-fields />
       </ejb-relationship-role>
       <ejb-relationship-role>
       <ejb-relationship-role-name>
       Patient-Is-Person
       </ejb-relationship-role-name>
       </ejb-relationship-role>
      </ejb-relation>
      


      The problem is: I simply don't know how to generate the
      <foreign-key-mapping/>
      tag via xdoclet.

      Please, please, please - help.... :-)

      Greetings

      Sebastian

        • 1. Re: XDoclet shortcoming?
          Sebastian Cramer Newbie

          Hello again.

          I got the problem narrowed down a little... While studying the xdoclet source I found a way of generating the

          <foreign-key-mapping/>


          I just had to add an undocumented setting:
          /**
           * Getter for CMR Relationship.
           * @return The personal data for this patient.
           *
           * @ejb.interface-method view-type = "local"
           * @ejb.relation name = "Patient-To-Person"
           * role-name = "Patient-To-Person-Role"
           * target-ejb = "CMPPerson"
           * target-role-name = "Patient-Is-Person-Role"
           * target-multiple = "false"
           *
           * @jboss.relation-mapping style = "foreign-key"
           */
          public abstract CMPPersonLocal getPerson();
          

          which is completly GREAT. But now I run into the next problem: The generated jbosscmp-jdbc.xml is messed up:
          <ejb-relation>
           <ejb-relation-name>Patient-To-Person</ejb-relation-name>
           <foreign-key-mapping/>
           <ejb-relationship-role>
           <ejb-relationship-role-name>
           Patient-To-Person-Role
           </ejb-relationship-role-name>
           <key-fields/>
           </ejb-relationship-role>
           <ejb-relationship-role>
           <ejb-relationship-role-name>
           Patient-Is-Person-Role
           </ejb-relationship-role-name>
           <key-fields/>
           </ejb-relationship-role>
          </ejb-relation>
          

          It is AT LEAST having an excess <key-fields/> in the relationship role named "Patient-Is-Person-Role"; and on top of that it seems to be lacking <cmr-field-name/> and <cmr-field-type/>.
          Where am I going wrong now?

          Greetings

          Sebastian