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JPA hierarchical queries [message #1090733]

Tue, 20 August 2013 15:08

Roger Spall

Messages: 17
Registered: January 2013

Junior Member

I could continue to use Native Eclipselink queries to make use of support for hierarchical queries, however I was wondering whether there are any plans to support hierarchical querying in JPA.

Meanwhile, without support for hierarchical queries, what is the 'best practice' for implementing hierarchical querying in JPA?

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Re: JPA hierarchical queries [message #1096571 is a reply to message #1090733]

Wed, 28 August 2013 15:28

James Sutherland

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

Senior Member

Hierarchical queries were added to JPQL in EclipseLink 2.5,

see,
http://java-persistence-performance.blogspot.com/2013/06/eclipselink-supports-hql-and-several.html

Also, you can always use an EclipseLink ReadAllQuery with JPA using JpaEntityManager.createQuery(DatabaseQuery).

James : Wiki : Book : Blog : Twitter

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