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New with JPA [message #523444]

Fri, 26 March 2010 13:55

Alex Nek

Messages: 2
Registered: March 2010

Junior Member

Hey,

I'm pretty new with JPA.
What i need to do to be able to use JPA in an existing Eclipse-Java project?

An explanation or a link would be helpful. Thanks!

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Re: New with JPA [message #523876 is a reply to message #523444]

Mon, 29 March 2010 17:16

James Sutherland

Messages: 1939
Registered: July 2009
Location: Ottawa, Canada

Senior Member

At a minimum you just need to add JPA spec persistence.jar and a JPA provider jar, such as eclipselink.jar to your projects classpath.

You will then need a persistence.xml for your project, and some annotated @Entity classes, or an orm.xml file.

In Eclipse you could use the Eclipse JPA support
http://www.eclipse.org/webtools/dali/

I think Eclipse also has some built-in libraries for JPA and EclipseLink.

James : Wiki : Book : Blog : Twitter

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Re: New with JPA [message #526145 is a reply to message #523444]

Thu, 08 April 2010 21:39

Karen Butzke

Messages: 220
Registered: July 2009

Senior Member

After downloading the Dali project, in Eclipse 3.5 or 3.6 you can right click on a java project and choose Configure -> Convert to JPA Project. This will lead you through the JPA wizard. Using Eclipse 3.6 (Dali 2.3) will give you tooling for the JPA 2.0 spec along with the 1.0 spec.

If you have questions about the Dali tools feel free to ask us questions over on
http://www.eclipse.org/forums/index.php?t=thread&frm_id=113

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