Making Life Simple » hibernate http://www.lalitmehta.com/home Tue, 09 Feb 2010 21:36:57 +0000 en hourly 1 http://wordpress.org/?v=3.0 Hibernate get distinct list with Criteria http://www.lalitmehta.com/home/2008/04/03/hibernate-get-distinct-list-with-criteria/ http://www.lalitmehta.com/home/2008/04/03/hibernate-get-distinct-list-with-criteria/#comments Thu, 03 Apr 2008 21:38:41 +0000 lalit http://www.lalitmehta.com/home/2008/04/03/hibernate-get-distinct-list-with-criteria/ The only way I could figure out to get the distinct list using Hibernate Criteria is by using ResultTransformer function.

eg.

List result = session.createCriteria(Order.class)
        .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY)
        -------
        .list();

The con is it fetches all the objects and then filters it. (very time consuming)

The only way to circumvent this problem is to write query using HQL.

If you find a way to do that efficiently using Criteria, let me know :)

]]> http://www.lalitmehta.com/home/2008/04/03/hibernate-get-distinct-list-with-criteria/feed/ 0 Hibernate gives “No CurrentSessionContext configured” error http://www.lalitmehta.com/home/2006/03/12/hibernate-gives-no-currentsessioncontext-configured-error/ http://www.lalitmehta.com/home/2006/03/12/hibernate-gives-no-currentsessioncontext-configured-error/#comments Mon, 13 Mar 2006 02:43:55 +0000 lalit http://www.lalitmehta.com/home/?p=7 If you use Hibernate in a managed environment (with JBoss or some other AS that Hibernate supoorts). Add this line to session-factory section:

<property name=”hibernate.current_session_context_class” >jta </property>

If you use Hibernate in a non-managed environment (standalone application with JDBC). Add this line:

<property name=”hibernate.current_session_context_class” >thread </property>

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