Suppose you have two EntityBean classes A and B which share some common functionality and state by inheriting from the same superclass S. Then, if S has some member variable, say a java.util.Vector called "foos", which is part of the persistent state of both A and B, my question is this: When should "foos" be initialized? I am positive that the ejbCreate methods of A and B could include an instantiation like "foos = new Vector();" but if I use this model, I have to remember to write this instantiation into every subclass of S, and if S has many member variables (and many subclasses) that becomes error prone. - Not to mention that if I add a new member variable to S I have to modify all subclasses A, B, etc. to make their ejbCreate(...) instantiate this new variable. My own suggestion is to define a method in S, lets call it "void instantiateS()" and have subclasses A, B, etc. invoke this method in their ejbCreate(...). I believe this method should *not* be the (no-arg) constructor of S as I expect this contructor will be called everytime an instance of A or B is loaded from persistant storage (which is unnecessary). What are your suggestions? What do you do when using inheritance in your beans? Any comments would be appreciated. Randahl. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
