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Viewing changes to src/org/hibernate/persister/entity/NamedQueryLoader.java

  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2007-10-14 14:43:34 UTC
  • Revision ID: james.westby@ubuntu.com-20071014144334-eamc8i0q10gs1aro
Tags: upstream-3.2.5
Import upstream version 3.2.5

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src/org/hibernate/persister/entity/NamedQueryLoader.java
 
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//$Id: NamedQueryLoader.java 10019 2006-06-15 07:50:12Z steve.ebersole@jboss.com $
 
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package org.hibernate.persister.entity;
 
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import java.io.Serializable;
 
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import org.apache.commons.logging.Log;
 
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import org.apache.commons.logging.LogFactory;
 
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import org.hibernate.FlushMode;
 
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import org.hibernate.HibernateException;
 
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import org.hibernate.engine.EntityKey;
 
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import org.hibernate.engine.SessionImplementor;
 
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import org.hibernate.impl.AbstractQueryImpl;
 
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import org.hibernate.loader.entity.UniqueEntityLoader;
 
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/**
 
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 * Not really a <tt>Loader</tt>, just a wrapper around a
 
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 * named query.
 
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 * @author Gavin King
 
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 */
 
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public final class NamedQueryLoader implements UniqueEntityLoader {
 
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        private final String queryName;
 
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        private final EntityPersister persister;
 
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        private static final Log log = LogFactory.getLog(NamedQueryLoader.class);
 
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        public NamedQueryLoader(String queryName, EntityPersister persister) {
 
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                super();
 
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                this.queryName = queryName;
 
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                this.persister = persister;
 
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        }
 
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        public Object load(Serializable id, Object optionalObject, SessionImplementor session) 
 
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        throws HibernateException {
 
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                if ( log.isDebugEnabled() ) {
 
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                        log.debug(
 
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                                        "loading entity: " + persister.getEntityName() + 
 
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                                        " using named query: " + queryName 
 
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                                );
 
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                }
 
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                AbstractQueryImpl query = (AbstractQueryImpl) session.getNamedQuery(queryName);
 
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                if ( query.hasNamedParameters() ) {
 
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                        query.setParameter( 
 
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                                        query.getNamedParameters()[0], 
 
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                                        id, 
 
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                                        persister.getIdentifierType() 
 
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                                );
 
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                }
 
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                else {
 
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                        query.setParameter( 0, id, persister.getIdentifierType() );
 
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                }
 
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                query.setOptionalId(id);
 
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                query.setOptionalEntityName( persister.getEntityName() );
 
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                query.setOptionalObject(optionalObject);
 
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                query.setFlushMode( FlushMode.MANUAL );
 
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                query.list();
 
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                // now look up the object we are really interested in!
 
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                // (this lets us correctly handle proxies and multi-row
 
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                // or multi-column queries)
 
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                return session.getPersistenceContext()
 
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                                .getEntity( new EntityKey( id, persister, session.getEntityMode() ) );
 
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        }
 
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}
 
 
b'\\ No newline at end of file'