[Toplink] How to add c3p0 or DBCP Connection pool?

Posted by Jean N.T. on Stack Overflow See other posts from Stack Overflow or by Jean N.T.
Published on 2010-04-13T15:22:50Z Indexed on 2010/04/14 10:32 UTC
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toplink

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jpa

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c3po

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dbcp

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pool

Hello,

Could you please explain to me how to add a standalone c3pO or DBCP connection pool to my toplink-based JPA project?

I have a persistence.xml file, and everytime I want to query the database, I'm doing this:

EntityManagerFactory emf = this.getEntityManagerFactory();

// Surely using persistence.xml to set up the factory

EntityManager em = emf.createEntityManager(); ...

Where do I build the bridge between my external connection pool manager and Toplink? Any ideas or links are welcomed.

Regards, Jean

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