Entity Bean Parent/Child Relationships?

[Rhodes, Phillip C.]

I have a Entity bean called "CategoryBean" that is recursive.  Categories
can have children categories, and those categories can have children, etc.
Example:

Furniture
        Chair
        Couch
Bedding
        Sheets
        Blankets

My ejb "CategoryBean" needs to get its children.  For example, user clicks
on category, need to show sub-categories.  I created a method called
getChildCategories() in my CategoryBean object.  The method
getChildCategories()  does the lookup on the home object and calls the
findByParent(String categoryId)  finder on the home object.

My question is, is this indirection necessary?  Why would I need my instance
of an EJB to look up another (possible its own) reference to lookup its
children?

Does anyone have example of parent/child relationship as entity bean?

Thanks!


public Enumeration getChildCategories() throws RemoteException {
        CategoryHome home = null;
        try {
                Context initCtx = new InitialContext(ctx.getEnvironment());

                home = (CategoryHome) initCtx.findByParent(categoryId);

        }  catch (Exception e) {
                throw new ServerException("Lookup failed",e);
        }
}


Phillip Rhodes
[EMAIL PROTECTED]
Alcoa eCommerce
https://www.ALCOADIRECT.COM
826B Two Allegheny Center Pittsburgh, PA  15212
(412) 553-4900  (phone)  (412) 553-2484 (fax)

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