One note of caution about using enums - there can be a problem in passing enums from a client to a server using RMI-IIOP serialiazation - see GlassFish issue https://glassfish.dev.java.net/issues/show_bug.cgi?id=193 for some details.

regards,
-marina

Abe White wrote:
I think that JDBCFetchPlan should take a Java 5 enum, and
JDBCFetchConfiguration should use the Connection values.


Certainly JDBCFetchConfiguration should use the Connection values. I personally have never had a problem with symbolic constants for settings, but enums for the FetchPlan are cool too. So long as the JPA QueryImpl parses the enum value and its string form correctly when using it as a hint.

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