Re: using cayenne data connection pools with struts.

From: Mike Kienenberger (mkienen..laska.net)
Date: Thu Nov 06 2003 - 22:31:37 EST

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    Andrus Adamchik <andru..bjectstyle.org> wrote:
    > Going through the mailing list archive, I can see that you are using
    > Cayenne for real in your apps... In this case everything should be even
    > simpler. Forget configuring DataSource in struts XML files. Whenever
    > you *really-really* need to bypass Cayenne and get connections directly
    > do something like this:
    >
    > DataNode node =
    > (DataNode)Configuration.getDomain().getDataNodes().get(0);
    > DataSource ds = node.getDataSource();

    If it's not obvious (it wasn't to me when I needed it for dbunit), you'll
    want to typecast that datasource to PoolManager:

                    PoolManager dataSource = (PoolManager) dataNode.getDataSource();

    For what it's worth, you can also use this code to get a DataNode if you
    want to be more certain of which data node you're getting back:

                    ObjEntity anObjEntity =
    aDataContext.getEntityResolver().lookupObjEntity(SOME_DATA_OBJECT.getObjectId().getObjClass());
                    DataNode dataNode = aDataContext.dataNodeForObjEntity(anObjEntity);

    I don't configure Cayenne using the struts XML files either, but also use it
    directly.

    -Mike

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