Sun Java System Application Server 9.1 Update 1-9.1 Update 2 Release Notes
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Enabling Multilevel Relationship Prefetching

Multilevel relationship prefetching is supported for CMP 2.1 entity beans.

To enable multilevel relationship prefetching, set the following property:


-Dcom.sun.jdo.spi.persistence.support.sqlstore.MULTILEVEL_PREFETCH=true

For more information about relationship prefetching, see Relationship Prefetching in Sun Java System Application Server 9.1 Developer’s Guide.