Re: DB2 and Identity column

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Thu Jun 24 2010 - 13:57:27 UTC

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    Good to hear. I'll open a Jira to change the adapter settings for DB2
    to support this out of the box.

    Andrus

    On Jun 24, 2010, at 4:29 PM, Andrew Willerding wrote:

    > On 10-06-24 02:36 AM, Andrus Adamchik wrote:
    >> Hi Andrew,
    >>
    >> Not sure if that's related to your problem, but by default
    >> Db2Adapter is not setup to support identity columns (don't remember
    >> what the deal was back in the day when that setting was
    >> introduced... Most likely the driver didn't handle them correctly.
    >> Not sure if it does now).
    >>
    >> You may try getting a hold of Db2Adapter instance (DataDomain ->
    >> DataNode -> DbAdapter; if it is set to "AutoAdapter", you can
    >> change it in the Modeler to "Custom Adapter" with the value of
    >> "org.apache.cayenne.dba.db2.DB2Adapter"), and then call
    >>
    >> adapter.setSupportsGeneratedKeys(true);
    >>
    >> Let us know the outcome - we may change the Cayenne defaults.
    >>
    >> Cheers,
    >> Andrus
    >>
    >> On Jun 24, 2010, at 7:15 AM, Andrew Willerding wrote:
    >
    > Hi Andrus
    >
    > It took me a while to figure out how to get to the adapter in the
    > code. I'm not used to accessing the "lower levels" of Cayenne but
    > after some persistence (no pun intended) it WORKED! Thanks so much
    > for your quick response!!
    >
    > Here's what I did to check if the setting took hold.
    >
    > System.out.println("************GEN KEYS SUPPORTED? -" +
    > DataContext
    > .createDataContext
    > ().getParentDataDomain
    > ().getNode("DataNode").getAdapter().supportsGeneratedKeys());
    >
    >
    > DB2Adapter ad =
    > (DB2Adapter
    > )DataContext
    > .createDataContext
    > ().getParentDataDomain().getNode("DataNode").getAdapter();
    > ad.setSupportsGeneratedKeys(true);
    >
    > System.out.println("************GEN KEYS SUPPORTED? -" +
    > DataContext
    > .createDataContext
    > ().getParentDataDomain
    > ().getNode("DataNode").getAdapter().supportsGeneratedKeys());
    >
    >
    > Andrew
    >



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