Re: Nested ROP contexts and relationships

From: Robert Zeigler (robert.zeigle..oxanemy.com)
Date: Tue Nov 24 2009 - 06:41:33 EST

  • Next message: Andrus Adamchik: "Re: Nested ROP contexts and relationships"

    On Nov 24, 2009, at 11/245:37 AM , Andrey Razumovsky wrote:

    > 2009/11/24 Andrus Adamchik <andru..bjectstyle.org>
    >
    >>
    >> I did not, but I defined 3 different types of objects (ROP, POJO,
    >> JPA) that
    >> don't use this approach for setting reverse relationship. So that's
    >> what I
    >> mean by pluggable :-)
    >>
    >>
    > And now I want at least ROP-like classes do use this approach as
    > well (i
    > mean what is contained inside "setToOneTarget" method). I just want to
    > minimize duplicating the code. Alternatively, same code will be
    > added to the
    > places where we process those "different types".
    >
    >
    >>
    >> Property p = ClassDescriptor.getProperty(String);
    >> p.readProperty(Object);
    >> p.readPropertyDirectly(Object);
    >>
    >>
    > ...and more lines to get ClassDescriptor:
    >
    > ClassDescriptor cd = object.getObjectContext().
    >
    > getEntityResolver
    > ().getClassDescriptor(object.getObjectId().getEntityName());
    > Too hard for user who does not know Cayenne internals I think

    I'll second that. I ran into a very similar use case yesterday in a
    hibernate project... I was wanting to get at hibernate's version of
    ClassDescription, and it took me forever to track down the right way
    to do it; once I knew how, it was simple enough, and just a few lines
    of code, but I fear the above would cause a new Cayenne user the same
    level of frustration I experienced yesterday with Hibernate. ;)

    Robert



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