Removed getDelegate() calls from the published interfaces, as they expose internals. They are still available on the impl classes themselves, or the SPI ifaces when available.
Added covariant return types to JDBCFetchPlan.
Changed BrokerFactoryListener interface to not encode event types in the listener signature.
Moved some methods from OpenJPAPersistence to JPAFacadeHelper.
We will need to grow these published interfaces to provide access to some things in the internal interfaces. However, these interfaces will remain stable moving forward within the constraints of the OpenJPA deprecation policies.
git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@567838 13f79535-47bb-0310-9956-ffa450edef68