Re: Cayenne 3.0M2 and EJBQLQuery

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Tue Nov 13 2007 - 09:05:21 EST

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    I don't have any performance numbers just yet. From the design
    knowledge, my educated guess is that the translation phase will be
    somewhat slower, as EJBQL goes through a longer chain of syntax
    transformation, but the result retrieval should be as fast. Since the
    translation phase has never been a bottleneck in the query execution
    cycle, there is hopefully no noticeable overall performance hit.

    Andrus

    On Nov 13, 2007, at 5:50 AM, David Marko wrote:
    > Are there any performance differences(penalty) when using
    > EJBQLQuery instead of
    > e.g. SelectQuery?
    >
    > Also for the others, I use succesfully
    > http://openjpa.apache.org/builds/1.0.1/apache-openjpa-1.0.1/docs/
    > manual/jpa_langref.html
    > as a very nice EJBQLQuery syntax manual.
    >
    > David
    >

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