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javajdbcormapache-cayenne

Obtaining DataSource from Cayenne DataConext

Currently I am using Cayenne as my ORM. I need to get DataSource for initializing Velocity Engine in my code. I can manually create the datasource but I don't want to do it and want to use the existing datasource from Cayenne.

Solution

  • In Cayenne 3.1 it is rather trivial:

    ServerRuntime runtime = .. // this exists in every app
DataSource ds = runtime.getDataSource("MyDataNode");

    In the earlier versions it is only marginally harder:

    DataDomain dd = context.getParentDataDomain();
DataSource ds = dd.getDataNode("MyDataNode").getDataSource();

    The last approach works on 3.1 too BTW.