[jboss-user] [EJB 3.0] - Re: when do we call entity manager flush and refresh methods

jaikiran do-not-reply at jboss.com
Tue Dec 2 03:11:19 EST 2008

The Entitymanager javadoc might help http://java.sun.com/javaee/5/docs/api/javax/persistence/EntityManager.html

In brief - the flush call will issue SQL queries to update the database with the changes that have been done to the in memory entities. The refresh on the other hand pulls the entity state from the database and overwrites the in memory changes.

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