Thanks for the comments guys.
I was checking the JavaDoc for Interceptor.onLoad
Quote:
Called just before an object is initialized. The interceptor may change the state, which will be propagated to the persistent object. Note that when this method is called, entity will be an empty uninitialized instance of the class.
What I really need is for an Object to be populated by Hibernate and then my hooking into it. From the JavaDoc, the onLoad seems to hook in before Hibernate populates the object? Is this a correct reading?
I guess the question is, is there a plugin point in hibernate *after* the properties have been loaded? (I'm using version 2, if that makes a difference)