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Using a fetch group with find [message #632653]

Wed, 13 October 2010 17:36

Chris

Messages: 2
Registered: October 2010

Junior Member

Hi,
I'm using eclipselink 2.0 and I can't figure out how to add a fetch group to a find.

I'm calling:
myEntityManger.find(MyTable.class, idMyTble);

Doing a normal named query I can set a fetch group with the hint method...but I don't see how to set the fetch group with the find.
Any insight would be most appreciated.

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Re: Using a fetch group with find [message #632873 is a reply to message #632653]

Thu, 14 October 2010 14:34

Chris Delahunt

Messages: 1389
Registered: July 2009

Senior Member

Hello,

Try the new to JPA find methods that take map of properties, for example:

FetchGroup fg = new FetchGroup();
fg.addAttribute("firstName");
fg.addAttribute("lastName");
HashMap properties = new HashMap(1);
properties.put(QueryHints.FETCH_GROUP, fg);
Employee resultEmployee = em.find(Employee.class, id, properties);

Best Regards,
Chris

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