Java tutorial
/** * Copyright or or Copr. Ministre Franais charg de la Culture * et de la Communication (2013) * <p/> * contact.gincoculture_at_gouv.fr * <p/> * This software is a computer program whose purpose is to provide a thesaurus * management solution. * <p/> * This software is governed by the CeCILL license under French law and * abiding by the rules of distribution of free software. You can use, * modify and/ or redistribute the software under the terms of the CeCILL * license as circulated by CEA, CNRS and INRIA at the following URL * "http://www.cecill.info". * <p/> * As a counterpart to the access to the source code and rights to copy, * modify and redistribute granted by the license, users are provided only * with a limited warranty and the software's author, the holder of the * economic rights, and the successive licensors have only limited liability. * <p/> * In this respect, the user's attention is drawn to the risks associated * with loading, using, modifying and/or developing or reproducing the * software by the user in light of its specific status of free software, * that may mean that it is complicated to manipulate, and that also * therefore means that it is reserved for developers and experienced * professionals having in-depth computer knowledge. Users are therefore * encouraged to load and test the software's suitability as regards their * requirements in conditions enabling the security of their systemsand/or * data to be ensured and, more generally, to use and operate it in the * same conditions as regards security. * <p/> * The fact that you are presently reading this means that you have had * knowledge of the CeCILL license and that you accept its terms. */ package fr.mcc.ginco.dao.hibernate; import fr.mcc.ginco.beans.AssociativeRelationship; import fr.mcc.ginco.beans.ThesaurusConcept; import fr.mcc.ginco.dao.IAssociativeRelationshipDAO; import org.hibernate.Criteria; import org.hibernate.criterion.DetachedCriteria; import org.hibernate.criterion.Projections; import org.hibernate.criterion.Restrictions; import org.hibernate.criterion.Subqueries; import org.springframework.stereotype.Repository; import java.util.List; /** * Implementation of the data access object to the thesaurus_term database table * */ @Repository("associativeRelationshipDAO") public class AssociativeRelationshipDAO extends GenericHibernateDAO<AssociativeRelationship, String> implements IAssociativeRelationshipDAO { public AssociativeRelationshipDAO() { super(AssociativeRelationship.class); } @Override public List<String> getAssociatedConcepts(ThesaurusConcept concept) { DetachedCriteria d1 = DetachedCriteria.forClass(AssociativeRelationship.class, "ar1"); d1.setProjection(Projections.projectionList().add(Projections.property("ar1.identifier.concept2"))); d1.add(Restrictions.eq("identifier.concept1", concept.getIdentifier())); DetachedCriteria d2 = DetachedCriteria.forClass(AssociativeRelationship.class, "ar2"); d2.setProjection(Projections.projectionList().add(Projections.property("ar2.identifier.concept1"))); d2.add(Restrictions.eq("identifier.concept2", concept.getIdentifier())); Criteria criteria = getCurrentSession().createCriteria(ThesaurusConcept.class, "tc") .add(Restrictions.or(Subqueries.propertyIn("tc.identifier", d1), Subqueries.propertyIn("tc.identifier", d2))) .setProjection(Projections.property("tc.identifier")); return criteria.list(); } @Override public AssociativeRelationship getAssociativeRelationship(String id1, String id2) { Criteria criteria = getCurrentSession().createCriteria(AssociativeRelationship.class, "ar") .add(Restrictions.or( Restrictions.and(Restrictions.eq("conceptLeft.identifier", id1), Restrictions.eq("conceptRight.identifier", id2)), Restrictions.and(Restrictions.eq("conceptRight.identifier", id1), Restrictions.eq("conceptLeft.identifier", id2)))); return (AssociativeRelationship) criteria.uniqueResult(); } }