public EntityInterceptor() 
{

}

No-argument constructor for externalization.

 public Object invoke(Invocation invocation) throws Throwable 
{
      InvocationContext ctx = invocation.getInvocationContext();
      Method m = invocation.getMethod();
      // Implement local methods
      if (m.equals(TO_STRING))
      {
         return toString(ctx);
      }
      else if (m.equals(EQUALS))
      {
         Object[] args = invocation.getArguments();
         String argsString = args[0] != null ? args[0].toString() : "";
         String thisString = toString(ctx);
         return new Boolean(thisString.equals(argsString));
      }
      else if (m.equals(HASH_CODE))
      {
         return new Integer(ctx.getCacheId().hashCode());
      }
      // Implement local EJB calls
      else if (m.equals(GET_HANDLE))
      {
         String jndiName = (String) ctx.getValue(InvocationKey.JNDI_NAME);
         Object id = ctx.getCacheId();
         return new EntityHandleImpl(jndiName, id);
      }
      else if (m.equals(GET_PRIMARY_KEY))
      {
         return ctx.getCacheId();
      }
      else if (m.equals(GET_EJB_HOME))
      {
         return getEJBHome(invocation);
      }
      else if (m.equals(IS_IDENTICAL))
      {
         Object[] args = invocation.getArguments();
         String argsString = args[0].toString();
         String thisString = toString(ctx);
         return new Boolean(thisString.equals(argsString));
      }
      // If not taken care of, go on and call the container
      else
      {
         // We are a Remote invocation
         invocation.setType(InvocationType.REMOTE);
         // We pertain to this ID (represented by cache ID)
         invocation.setId(ctx.getCacheId());
         return getNext().invoke(invocation);
      }
}

InvocationHandler implementation.