I had no idea it was not thread safe, in that case it is probably a good idea to get factory and create an entity manager every time.
musachy On Wed, Mar 18, 2009 at 1:30 PM, Burton Rhodes <[email protected]> wrote: > I set up the example for "Struts 2 + Spring 2 + JPA + AJAX" using the > OpenEntityManagerInViewFilter from the Struts website and all works > well. (http://struts.apache.org/2.0.14/docs/struts-2-spring-2-jpa-ajax.html). > It appears this example uses the @PersistenceContext annotation to > inject the EntityManger into each Service/Dao class... > > Then I read this blog about how you SHOULD NOT use @PersistenceContext > annotation in a webapp becasue of thread safety unless you implement a > SingleThreadModel. > > http://weblogs.java.net/blog/ss141213/archive/2005/12/dont_use_persis_1.html > > Now I am confused... Should I instead use @PersistenceUnit to inject > the EntityManagerFactor into each Dao object? And if so, won't this > affect the OpenEntityManagerInViewFilter and cause Lazy exceptions? > Can someone shead some light on this for me or am I not understanding > this correctly? > > Apologies in advance if this is a bit off Struts topic... > > Thanks, > Burton > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > -- "Hey you! Would you help me to carry the stone?" Pink Floyd --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
