Java tutorial
/* * The Gemma project * * Copyright (c) 2006 University of British Columbia * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ package ubic.gemma.persistence.persister; import org.hibernate.FlushMode; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import ubic.gemma.model.common.Auditable; import ubic.gemma.model.common.auditAndSecurity.AuditTrail; /** * A service that knows how to persist Gemma-domain objects. Associations are checked and persisted in turn if needed. * Where appropriate, objects are only created anew if they don't already exist in the database, according to rules * documented elsewhere. * * @author pavlidis * @author keshav */ @Service public class PersisterHelper extends RelationshipPersister { @Autowired public PersisterHelper(SessionFactory sessionFactory) { super.setSessionFactory(sessionFactory); } @Override @Transactional public Object persist(Object entity) { try { this.getSessionFactory().getCurrentSession().setFlushMode(FlushMode.COMMIT); if (entity instanceof Auditable) { Auditable auditable = (Auditable) entity; if (auditable.getAuditTrail() == null) { auditable.setAuditTrail(AuditTrail.Factory.newInstance()); } auditable.setAuditTrail(persistAuditTrail(auditable.getAuditTrail())); } return super.persist(entity); } finally { this.getSessionFactory().getCurrentSession().setFlushMode(FlushMode.AUTO); } } }