//$Id$
package org.hibernate.ejb.test.emops.cascade;
import javax.persistence.EntityManager;
import org.hibernate.ejb.test.TestCase;
import org.hibernate.Session;
import org.hibernate.stat.Statistics;
/**
* @author Emmanuel Bernard
*/
public class CascadePersistTest extends TestCase {
public void testLazyCollectionsStayLazyOnPersist() throws Exception {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
//initialize
A a = new A();
a.setName( "name1" );
em.persist( a );
a = new A();
a.setName( "name2" );
em.persist( a );
a = new A();
a.setName( "name3" );
em.persist( a );
em.flush();
a = em.find( A.class, 1 );
for ( int i = 0; i < 3; i++ ) {
B1 b1 = new B1();
b1.setA( a );
em.persist( b1 );
}
for ( int i = 0; i < 3; i++ ) {
B2 b2 = new B2();
b2.setA( a );
em.persist( b2 );
}
for ( int i = 0; i < 3; i++ ) {
B3 b3 = new B3();
b3.setA( a );
em.persist( b3 );
}
for ( int i = 0; i < 3; i++ ) {
B4 b4 = new B4();
b4.setA( a );
em.persist( b4 );
}
em.flush();
B1 b1 = em.find( B1.class, 1 );
for ( int i = 0; i < 2; i++ ) {
C1 c1 = new C1();
c1.setB1( b1 );
em.persist( c1 );
}
B2 b2 = em.find( B2.class, 1 );
for ( int i = 0; i < 4; i++ ) {
C2 c2 = new C2();
c2.setB2( b2 );
em.persist( c2 );
}
em.flush();
em.clear();
//test
a = em.find( A.class, 1 );
C2 c2 = new C2();
for ( B2 anotherB2 : a.getB2List() ) {
if ( anotherB2.getId() == 1 ) {
anotherB2.getC2List().add( c2 );
c2.setB2( anotherB2 );
}
}
Statistics statistics = em.unwrap(Session.class).getSessionFactory().getStatistics();
statistics.setStatisticsEnabled( true );
statistics.clear();
em.persist( c2 );
long loaded = statistics.getEntityLoadCount();
assertEquals( 0, loaded );
em.flush();
em.getTransaction().rollback();
em.close();
}
public Class[] getAnnotatedClasses() {
return new Class[]{
A.class,
B1.class,
B2.class,
B3.class,
B4.class,
C1.class,
C2.class
};
}
}