Composite Primary Key Error

Question

I am using Sun One App Server PE8.
I have a class with a composite primary key field. When I place the following method in my Home interface:
public MyEjb findByPrimaryKey(MyEjbPrimaryKey pk) throws FinderException, RemoteException;I get the following error when deploying:
ejbFindByPrimaryKey(EjbPrimaryKey) is already defined in MyEjb1368202910_ConcreteImpl
    public MyEjbPrimaryKey ejbFindByPrimaryKey (MyEjbPrimaryKey key)However, If i remove this method from the Home interface, i get the following error when running the verification tool:
Error: No single arg findByPrimaryKey(PrimaryKeyClass) method was found in home interface class [ MyEjb ].However, I can still deploy the EAR successfully.
Another related symptom of this problem, is if I include the following method in my Home interface:
public MyEjb findByPrimaryKey(String pkField1, String pkField2) throws FinderException, RemoteException;And call this method, I get the following exception at runtime:
java.rmi.RemoteException: Bean class for ejb [MyEjb] does not define a method corresponding to [Home] interface method [public abstract MyEjb MyEjbHome.findByPrimaryKey(java.lang.String,java
.lang.String) throws javax.ejb.FinderException,java.rmi.RemoteException]I get these same problems with all EJB's that use composite keys. Has anyone else had this problem?
Thanks
toby

Answer 1

This is a CMP bean, with no ejbFindByPrimaryKey in the Bean class. Below, i have included the Home interface and the Bean class (with unneccessary code removed)
Thanks for looking at this for me.
BEAN CLASS
package lands.mc.bus.prod;
import java.rmi.*;
import java.util.*;
import javax.ejb.*;
public abstract class TopoMapBean implements EntityBean
  private EntityContext entity;
  public TopoMapBean()
  public void setEntityContext(EntityContext ctx)
    entity = ctx;
  public void unsetEntityContext()
    entity = null;
  public TopoMapPrimaryKey ejbCreate(String mapName, String mapNumber, String mnemonic,String edition, String scale)
  throws CreateException
    // call setters...
    return null;
  public void ejbPostCreate( String mapName,
                                               String mapNumber,
                                         String mnemonic,
                                         String edition,
                                         String scale )
  removed set/get methods
  public void ejbStore() {}
  public void ejbLoad() {}
  public void ejbActivate() {}
  public void ejbPassivate() {}
  public void ejbRemove() {}
}HOME INTERFACE
package lands.mc.bus.prod;
import java.rmi.*;
import java.util.*;
import javax.ejb.*;
public interface TopoMapHome extends EJBHome
  public TopoMap create(String mapName,
                        String mapNumber,
                        String mnemonic,
                        String edition,
                        String scale
  throws CreateException, RemoteException;
  public TopoMap findByPrimaryKey(String mapNumber, String edition) throws FinderException, RemoteException;
// doesnt deploy with this signature
//  public TopoMap findByPrimaryKey(TopoMapPrimaryKey pkey) throws FinderException;
// have to use this method instead of findByPrimaryKey(String, String) above
  public TopoMap findTopoMap(String mapNumber, String edition) throws FinderException, RemoteException;