/*
* 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.ops;
import java.util.Map;
import javax.persistence.EntityManager;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.cfg.Environment;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.hibernate.testing.TestForIssue;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Gavin King
* @author Hardy Ferentschik
*/
public class GetLoadTest extends BaseEntityManagerFunctionalTestCase {
@Test
public void testGetLoad() {
clearCounts();
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Session s = ( Session ) em.getDelegate();
Employer emp = new Employer();
s.persist( emp );
Node node = new Node( "foo" );
Node parent = new Node( "bar" );
parent.addChild( node );
s.persist( parent );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
s = ( Session ) em.getDelegate();
emp = ( Employer ) s.get( Employer.class, emp.getId() );
assertTrue( Hibernate.isInitialized( emp ) );
assertFalse( Hibernate.isInitialized( emp.getEmployees() ) );
node = ( Node ) s.get( Node.class, node.getName() );
assertTrue( Hibernate.isInitialized( node ) );
assertFalse( Hibernate.isInitialized( node.getChildren() ) );
assertFalse( Hibernate.isInitialized( node.getParent() ) );
assertNull( s.get( Node.class, "xyz" ) );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
s = ( Session ) em.getDelegate();
emp = ( Employer ) s.load( Employer.class, emp.getId() );
emp.getId();
assertFalse( Hibernate.isInitialized( emp ) );
node = ( Node ) s.load( Node.class, node.getName() );
assertEquals( node.getName(), "foo" );
assertFalse( Hibernate.isInitialized( node ) );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
s = ( Session ) em.getDelegate();
emp = ( Employer ) s.get( Employer.class.getName(), emp.getId() );
assertTrue( Hibernate.isInitialized( emp ) );
node = ( Node ) s.get( Node.class.getName(), node.getName() );
assertTrue( Hibernate.isInitialized( node ) );
em.getTransaction().commit();
em.close();
em = getOrCreateEntityManager();
em.getTransaction().begin();
s = ( Session ) em.getDelegate();
emp = ( Employer ) s.load( Employer.class.getName(), emp.getId() );
emp.getId();
assertFalse( Hibernate.isInitialized( emp ) );
node = ( Node ) s.load( Node.class.getName(), node.getName() );
assertEquals( node.getName(), "foo" );
assertFalse( Hibernate.isInitialized( node ) );
em.getTransaction().commit();
em.close();
assertFetchCount( 0 );
}
private void clearCounts() {
entityManagerFactory().getStatistics().clear();
}
private void assertFetchCount(int count) {
int fetches = ( int ) entityManagerFactory().getStatistics().getEntityFetchCount();
assertEquals( count, fetches );
}
@Test
@TestForIssue( jiraKey = "HHH-9856" )
public void testNonEntity() {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
try {
em.getReference( String.class, 1 );
fail( "Expecting a failure" );
}
catch (IllegalArgumentException ignore) {
// expected
}
finally {
em.getTransaction().rollback();
em.close();
}
}
@Override
@SuppressWarnings( {"unchecked"})
protected void addConfigOptions(Map options) {
options.put( Environment.GENERATE_STATISTICS, "true" );
options.put( Environment.STATEMENT_BATCH_SIZE, "0" );
}
@Override
protected String[] getMappings() {
return new String[] {
"org/hibernate/jpa/test/ops/Node.hbm.xml",
"org/hibernate/jpa/test/ops/Employer.hbm.xml"
};
}
}