Hi All...
I'm trying to understand how references to entity beans work in EJB 1.1
servers when using CMP. I'm sorry this is kind of convoluted, but I have
been through a few books and and web sites and have not figured out how
this works.
I'm interested in modeling my world using entity beans that have reference
to other entity beans, like I would in any other OO system. I don't
understand how all this works in EJB when I am using CMP.
If I have an eb that represents a child, and another eb that represents an
address, I would like to put a reference to an Address eb in my Child eb
and have CMP handle persisting both of the beans. If I do that will the
address in some way be persisted with the Child eb (maybe by saving its
primary key)? When I later do a find that loads the Child eb from the
database will the Address eb be loaded as well?
Now, what if I want to model the Child having some not fixed number of
toys? I would like for the Child eb to have an instance of a Collection of
Toy entity beans. Can I do this such that when the Child is persisted that
all the tpys get persisted as well?
Thanks very much!
Jim
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