Re: "map" properties?

From: Juergen Saar (juerge..saar.org)
Date: Tue Jan 16 2007 - 03:49:29 EST

  • Next message: Robert Zeigler: "Re: "map" properties?"

    I think this is a little special ...

    if you have 1..n relation to addresses this could make sense, but for a
    relation order to positions this would be difficult. The only way cayenne
    could provide a generell map is the PK an I don't think that this would be
    helpful. All other attributes are nor secured unique ...

    I think for the few cases where this makes sense, I would write a little
    helper method.

    --- Juergen ---

    2007/1/16, Robert Zeigler <robert..uregumption.com>:
    >
    > Currently (to the best of my knowledge), cayenne always represents a
    > to-many relationship as a java.util.List. However, I was thinking it
    > would be nifty if cayenne supported map-representations of to-many
    > relationships. For instance, you could model a relationship between
    > Users and UserPreferences as a map, and specify the "name" property of
    > the UserPreferences table as the map key. Does that make sense? Am I
    > the only one who thinks that would be incredibly useful? :) Is something
    > like this already planned for 3.0?
    > If other people would find it useful, then I'd be happy to submit a
    > feature request and also work up a patch.
    >
    > Robert
    >



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