Re: Inheritance using two tables

From: Andre Bremer (a.breme..olff-olins.com)
Date: Tue Feb 01 2005 - 11:01:06 EST

  • Next message: Cris Daniluk: "Removing from object graph"

    Andrus Adamchik wrote:

    >ADD is killing me lately :-) Sorry for confusing everybody.
    >
    >Vertical inheritance would require support of flattened attributes. This
    >should hopefully be a part of 1.2.
    >
    >
    >
    Andrus

    Now were you mention it, I am using Cayenne 1.2M1 and have completed
    mapping the schema and generating the Classes.
    I am able to instantiate the concrete Class (mapped to the supper class
    using the Modeler) but the fields of the super class have a NULL value.

    I volunteer for testing vertical mapping once Cayenne is ready, - Let us
    know :)

    cheers

    Andre

    >Andrus
    >
    >
    >
    >>Andrus,
    >>
    >>I am after vertical inheritance:
    >>
    >>http://developer.apple.com/documentation/WebObjects/UsingEOModeler/Art/inh_vertical.gif
    >>
    >>Thanks
    >>
    >>Andre
    >>
    >>Andrus Adamchik wrote:
    >>
    >>
    >>
    >>>Ok.. now I am confused what type of inheritance are we talking about...
    >>>Horizontal inheritance, the one that I assumed -
    >>>http://developer.apple.com/documentation/WebObjects/UsingEOModeler/Art/inh_horizontal.gif,
    >>>or vertical inheritance with "flattened" attributes across tables:
    >>>http://developer.apple.com/documentation/WebObjects/UsingEOModeler/Art/inh_vertical.gif
    >>>
    >>>Andre, which one do you need?
    >>>
    >>>Andrus
    >>>
    >>>
    >
    >
    >
    >
    >
    >

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