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From MiƂosz Tylenda <>
Subject Re: database dependent queries
Date Wed, 10 Jun 2009 12:05:11 GMT
Hi Michael,

Have you tried the @PersistenceUnit inside a bean:

@PersistenceUnit EntityManagerFactory emf

This should inject the EMF into the bean.


> Hello,
> We need to use database dependent native queries ("fast lane reader pattern"). Therefore
we need
> to load the appropriate statements stored e.g. in a properties file, the name of which
> derived from the database (e.g. "sqlserver.sql")
> I wanted to determine the name by evaluating
> entityManagerFactory.getProperties ().get("Platform");
> Running this standalone works but within a bean I don't have access to the EMF, do I?
> Is there another to determine which database is in use?
> kind regards, Michael

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