Re: expression to find out null relationship

From: Mike Kienenberger (mkienen..mail.com)
Date: Tue Feb 27 2007 - 20:11:10 EST

  • Next message: Marcin Skladaniec: "Re: expression to find out null relationship"

    ExpressionFactory.noMatchExp(AppleTree.APPLE_PROPERTY, null)

    Be aware that you cannot safely combine this expression with other
    expressions due to outer join issues, unless you're using the outer
    join patch. I think there was another null-related fix mixed into
    that patch.

    On 2/27/07, Marcin Skladaniec <marci..sh.com.au> wrote:
    > Hi
    >
    > I have a simple one-to-many relationship : AppleTree - Apple. I'm
    > doing a query :
    > new SelectQuery(AppleTree.class, expression)
    > how should the expression look like to return the trees with apples ?
    > expression = ExpressionFactory.noMatchExp(AppleTree.APPLES, null)
    > does not seem to work, neither does
    > expression = ExpressionFactory.noMatchExp("applesArray", null)
    >
    > Regards
    > Marcin
    >

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