[jboss-user] [EJB/JBoss] - Re: Business Interface Pattern + Generics == EJB Spec Violat

[jaikiran]

Consider this:

public interface AddressBeanBusinessInterface <E extends Exception>
  | {
  | ...
  |     public void delete( final Long key ) throws E, UnknownIdDeviation;
  | 

  | public interface AddressBeanRemote extends EJBObject, AddressBeanBusinessInterface<RemoteException>
  | {
  |     // empty - see the business interface for the remote EJB methods
  | ...

and

public interface AnotherInterface extends AddressBeanBusinessInterface<NullPointerException>
  | {
  |     // empty - see the business interface for the remote EJB methods
  | 

So there 2 interfaces which extend the AddressBeanBusinessInterface. One expects to throw a NullPointerException and the other a RemoteException. So what should the compiler "replace" the E in AddressBeanBusinessInterface? It doesn't. All it does is marks the method to throw an Exception (as marked by E extends Exception):

public interface AddressBeanBusinessInterface <E extends Exception>
  | {
  | ...
  |     public void delete( final Long key ) throws Exception, UnknownIdDeviation;
  | 
  | 

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