Sun GlassFish Enterprise Server v3 Prelude Developer's Guide

Allowing Non-Component Callers

You can allow non-Java-EE components, such as servlet filters and third party persistence managers, to use this JDBC connection pool. The returned connection is automatically enlisted with the transaction context obtained from the transaction manager. Standard Java EE components can also use such pools. Connections obtained by non-component callers are not automatically closed at the end of a transaction by the container. They must be explicitly closed by the caller.

You can enable non-component callers in the following ways: