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find() method from hibernate 2 to hibernate 3

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dawuad

Post subject: find() method from hibernate 2 to hibernate 3

Posted: Mon May 09, 2005 1:26 pm

Regular

Joined: Wed Sep 29, 2004 11:34 am
Posts: 62
Location: Houston, TX

Hibernate 2 had a find method which is now replaced in hibernate 3 with createQuery. It had three such overloaded methods:

(1) find(String arg0) - returns list
(2) find(String arg0, Object arg1, Type arg2) - returns list
(3) find(String arg0, Object[] arg1, Type[] arg2) - returns list

I know how to work with (1) find(arg0).list() , but I don't know how to work with (2) and (3). I know I can use the org.hibernate.classic.Session class, but I want to use the new API. Does anyone know its replacements.

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aidan

Post subject:

Posted: Mon May 09, 2005 1:33 pm

Newbie

Joined: Thu May 05, 2005 5:49 pm
Posts: 11
Location: San Diego, California

Code:

Query query = session.createQuery("from Table where Column = ?");
query.setString(0, "XXXX");

The Query class has methods similar to JDBC's PreparedStatement for setting the values into the query. In the above example I set a String but if you wanted to set a Long you would do something like:

Code:

query.setLong(0, new Long(1));

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dawuad

Post subject:

Posted: Mon May 09, 2005 1:47 pm

Regular

Joined: Wed Sep 29, 2004 11:34 am
Posts: 62
Location: Houston, TX

Like the old find() method, I am looking for more of a generic method. I am trying to implement some functionality of the DAO factory that was found in Hibernate Synchronizer (_RootDAO)

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steve

Post subject:

Posted: Mon May 09, 2005 2:19 pm

Hibernate Team

Joined: Tue Aug 26, 2003 3:00 pm
Posts: 1816
Location: Austin, TX

The use one of the overloaded Query.setParameter() methods.

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