There is a related JSR: JSR-000026 UML/EJB Mapping Specification.
http://www.javasoft.com/aboutJava/communityprocess/jsr/jsr_026_uml.html
I hope they will specify standard on ? to n relationship mapping during
it.
Constrantine
Rickard �berg wrote:
>
> Hey
>
> Phil Lewis wrote:
> > In this months Java Report, in the article 'What's New in EJB 1.1', Richard
> > Monson-Haefel says (on page 26), that 'EJB 1.1 specifies that
> > container-managed fields can include references to ther Entity Beans...'
> >
> > Is this true?
>
> Yes, it is true. Check EJB1.1 Draft 3 p134:
> "The Bean Provider must ensure that the Java types assigned to the
> container-managed fields are
> restricted to the following: Java primitive types, Java serializable
> types, and references of
> enterprise beans� remote or home interfaces."
>
> > And if so, is there a simple way to then make this useful for anything other
> > than 1-1 relationships?
>
> With a 1-N relationship make the N-side point to the 1 side (i.e.
> standard RDBMS schema rules apply).
>
> It doesn't say anything about having java.util.Vectors of remote
> references. Strictly speaking the spec allows this since Vector is
> serializable and would only contain EJB remote references (i.e. allowed
> types), but I doubt that this is the intent of the spec authors.
>
> /Rickard
>
> --
> Rickard �berg
>
> @home: +46 13 177937
> Email: [EMAIL PROTECTED]
> Homepage: http://www-und.ida.liu.se/~ricob684
>
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