/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.jpa.test.criteria.paths;
import javax.persistence.EntityManager;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Path;
import javax.persistence.criteria.Root;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.hibernate.jpa.test.metamodel.AbstractMetamodelSpecificTest;
import org.hibernate.jpa.test.metamodel.Order;
import org.hibernate.jpa.test.metamodel.Order_;
import org.hibernate.jpa.test.metamodel.Thing;
import org.hibernate.jpa.test.metamodel.ThingWithQuantity;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
/**
* @author Michael Rudolf
* @author James Gilbertson
*/
public class AbstractPathImplTest extends AbstractMetamodelSpecificTest {
@Before
public void prepareTestData() {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Thing thing = new Thing();
thing.setId( "thing1" );
thing.setName( "A Thing" );
em.persist( thing );
thing = new Thing();
thing.setId( "thing2" );
thing.setName( "Another Thing" );
em.persist( thing );
ThingWithQuantity thingWithQuantity = new ThingWithQuantity();
thingWithQuantity.setId( "thingWithQuantity3" );
thingWithQuantity.setName( "3 Things" );
thingWithQuantity.setQuantity( 3 );
em.persist( thingWithQuantity );
em.getTransaction().commit();
em.close();
}
@After
public void cleanupTestData() {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
em.remove( em.find( Thing.class, "thing1" ) );
em.remove( em.find( Thing.class, "thing2" ) );
em.remove( em.find( ThingWithQuantity.class, "thingWithQuantity3" ) );
em.getTransaction().commit();
em.close();
}
@Test(expected = IllegalArgumentException.class)
public void testGetNonExistingAttributeViaName() {
EntityManager em = getOrCreateEntityManager();
try {
CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
CriteriaQuery<Order> criteria = criteriaBuilder.createQuery( Order.class );
Root<Order> orderRoot = criteria.from( Order.class );
orderRoot.get( "nonExistingAttribute" );
}
finally {
em.close();
}
}
@Test
public void testIllegalDereference() {
EntityManager em = getOrCreateEntityManager();
try {
CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
CriteriaQuery<Order> criteria = criteriaBuilder.createQuery( Order.class );
Root<Order> orderRoot = criteria.from( Order.class );
Path simplePath = orderRoot.get( "totalPrice" );
// this should cause an ISE...
try {
simplePath.get( "yabbadabbado" );
fail( "Attempt to dereference basic path should throw IllegalStateException" );
}
catch (IllegalStateException expected) {
}
}
finally {
em.close();
}
}
@Test
public void testTypeExpression() {
EntityManager em = getOrCreateEntityManager();
try {
CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
CriteriaQuery<Thing> criteria = criteriaBuilder.createQuery( Thing.class );
Root<Thing> thingRoot = criteria.from( Thing.class );
criteria.select( thingRoot );
assertEquals( em.createQuery( criteria ).getResultList().size(), 3);
criteria.where( criteriaBuilder.equal( thingRoot.type(), criteriaBuilder.literal( Thing.class ) ) );
assertEquals( em.createQuery( criteria ).getResultList().size(), 2 );
}
finally {
em.close();
}
}
}