Interceptable javadocs?

Hi all,

I'm trying to customize the behavior of an edit in one of my entities by implementing the Interceptable interface. However, I don't find any reference in the javadoc about the meaning of the method's return value (it's a boolean). I'm only interested on update events, so I want to implement onLoad and onInsert as NOOPs, but I don't know what to return.

Any tip would be appreciated.
Thanks in advance.
Pablo.