Hibernate example source code file (BasicUniSet.java)

This example Hibernate source code file (BasicUniSet.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

abstractentitytest, basicuniset, entitymanager, hashset, integer, integer, priority, setunientity, setunientity, strtestentity, strtestentity, test, test, util

The Hibernate BasicUniSet.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Middleware LLC.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.envers.test.integration.manytomany.unidirectional;

import org.hibernate.ejb.Ejb3Configuration;
import org.hibernate.envers.test.AbstractEntityTest;
import org.hibernate.envers.test.Priority;
import org.hibernate.envers.test.entities.StrTestEntity;
import org.hibernate.envers.test.entities.manytomany.unidirectional.SetUniEntity;
import org.hibernate.envers.test.tools.TestTools;
import org.junit.Test;

import javax.persistence.EntityManager;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;

/**
 * @author Adam Warski (adam at warski dot org)
 */
public class BasicUniSet extends AbstractEntityTest {
    private Integer ed1_id;
    private Integer ed2_id;

    private Integer ing1_id;
    private Integer ing2_id;

    public void configure(Ejb3Configuration cfg) {
        cfg.addAnnotatedClass(SetUniEntity.class);
        cfg.addAnnotatedClass(StrTestEntity.class);
    }

    @Test
    @Priority(10)
    public void initData() {
        EntityManager em = getEntityManager();

        StrTestEntity ed1 = new StrTestEntity("data_ed_1");
        StrTestEntity ed2 = new StrTestEntity("data_ed_2");

        SetUniEntity ing1 = new SetUniEntity(3, "data_ing_1");
        SetUniEntity ing2 = new SetUniEntity(4, "data_ing_2");

        // Revision 1
        em.getTransaction().begin();

        em.persist(ed1);
        em.persist(ed2);
        em.persist(ing1);
        em.persist(ing2);

        em.getTransaction().commit();

        // Revision 2

        em.getTransaction().begin();

        ing1 = em.find(SetUniEntity.class, ing1.getId());
        ing2 = em.find(SetUniEntity.class, ing2.getId());
        ed1 = em.find(StrTestEntity.class, ed1.getId());
        ed2 = em.find(StrTestEntity.class, ed2.getId());

        ing1.setReferences(new HashSet<StrTestEntity>());
        ing1.getReferences().add(ed1);

        ing2.setReferences(new HashSet<StrTestEntity>());
        ing2.getReferences().add(ed1);
        ing2.getReferences().add(ed2);

        em.getTransaction().commit();

        // Revision 3
        em.getTransaction().begin();

        ing1 = em.find(SetUniEntity.class, ing1.getId());
        ed2 = em.find(StrTestEntity.class, ed2.getId());
        ed1 = em.find(StrTestEntity.class, ed1.getId());

        ing1.getReferences().add(ed2);

        em.getTransaction().commit();

        // Revision 4
        em.getTransaction().begin();

        ing1 = em.find(SetUniEntity.class, ing1.getId());
        ed2 = em.find(StrTestEntity.class, ed2.getId());
        ed1 = em.find(StrTestEntity.class, ed1.getId());

        ing1.getReferences().remove(ed1);

        em.getTransaction().commit();

        // Revision 5
        em.getTransaction().begin();

        ing1 = em.find(SetUniEntity.class, ing1.getId());

        ing1.setReferences(null);

        em.getTransaction().commit();

        //

        ed1_id = ed1.getId();
        ed2_id = ed2.getId();

        ing1_id = ing1.getId();
        ing2_id = ing2.getId();
    }

    @Test
    public void testRevisionsCounts() {
        assert Arrays.asList(1).equals(getAuditReader().getRevisions(StrTestEntity.class, ed1_id));
        assert Arrays.asList(1).equals(getAuditReader().getRevisions(StrTestEntity.class, ed2_id));

        assert Arrays.asList(1, 2, 3, 4, 5).equals(getAuditReader().getRevisions(SetUniEntity.class, ing1_id));
        assert Arrays.asList(1, 2).equals(getAuditReader().getRevisions(SetUniEntity.class, ing2_id));
    }

    @Test
    public void testHistoryOfEdIng1() {
        StrTestEntity ed1 = getEntityManager().find(StrTestEntity.class, ed1_id);
        StrTestEntity ed2 = getEntityManager().find(StrTestEntity.class, ed2_id);

        SetUniEntity rev1 = getAuditReader().find(SetUniEntity.class, ing1_id, 1);
        SetUniEntity rev2 = getAuditReader().find(SetUniEntity.class, ing1_id, 2);
        SetUniEntity rev3 = getAuditReader().find(SetUniEntity.class, ing1_id, 3);
        SetUniEntity rev4 = getAuditReader().find(SetUniEntity.class, ing1_id, 4);
        SetUniEntity rev5 = getAuditReader().find(SetUniEntity.class, ing1_id, 5);

        assert rev1.getReferences().equals(Collections.EMPTY_SET);
        assert rev2.getReferences().equals(TestTools.makeSet(ed1));
        assert rev3.getReferences().equals(TestTools.makeSet(ed1, ed2));
        assert rev4.getReferences().equals(TestTools.makeSet(ed2));
        assert rev5.getReferences().equals(Collections.EMPTY_SET);
    }

    @Test
    public void testHistoryOfEdIng2() {
        StrTestEntity ed1 = getEntityManager().find(StrTestEntity.class, ed1_id);
        StrTestEntity ed2 = getEntityManager().find(StrTestEntity.class, ed2_id);

        SetUniEntity rev1 = getAuditReader().find(SetUniEntity.class, ing2_id, 1);
        SetUniEntity rev2 = getAuditReader().find(SetUniEntity.class, ing2_id, 2);
        SetUniEntity rev3 = getAuditReader().find(SetUniEntity.class, ing2_id, 3);
        SetUniEntity rev4 = getAuditReader().find(SetUniEntity.class, ing2_id, 4);
        SetUniEntity rev5 = getAuditReader().find(SetUniEntity.class, ing2_id, 5);

        assert rev1.getReferences().equals(Collections.EMPTY_SET);
        assert rev2.getReferences().equals(TestTools.makeSet(ed1, ed2));
        assert rev3.getReferences().equals(TestTools.makeSet(ed1, ed2));
        assert rev4.getReferences().equals(TestTools.makeSet(ed1, ed2));
        assert rev5.getReferences().equals(TestTools.makeSet(ed1, ed2));
    }
}