|JPA Activation [message #593418]
||Tue, 03 April 2007 08:14
| Gereon Fassbender
Registered: July 2009
I added an Entity annotation to a class, which is accepted after
including the toplink-essentials.jar, but the Dali views remain empty.
Also I don't get the expected "Entity does not have an Id".
I read the tutorial, but I didn't found that "Add Java Persistence" in
the Package Explorer context menu.
I recognized the "New JPA Project" in the file menu but I want to use
JPA in an *existing* project. How can I activate JPA in an arbitrary
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