Re: Circle references

From: Andrey Razumovsky (razumovsky.andre..mail.com)
Date: Fri Jul 10 2009 - 04:20:19 EDT

  • Next message: Andrey Razumovsky: "Re: Circle references"

    >
    > This is what Cayenne does. So there is really no cycle, and Cayenne still
    > can't guess the order, this may be a bug.
    >

    Hi Andrus,

    Unfortunately, this is not true. In AshwoodEntitySorter, all entities in
    circle are put to same ComponentRecord. Existence of instances of all
    entities in circle So their comparison at commit brings 0. Therefore records
    will be inserted in the same order they are registered in context (I'm not
    sure, or maybe the order is just unpredictable). So this causes an insertion
    error:

    Imagine references avaliable A->B->C->A

    1. Create dependant entity B
    2. Create master entity A
    3. b.setA(a)
    4. Commit.

    C is even never used.

    Andrey

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