Hibernate example source code file (TestLazyExecutable.java)

This example Hibernate source code file (TestLazyExecutable.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

action, document, document, folder, hia, hia, hia2, hia2, owner, owner, second, session, sessionfactory, transaction

The Hibernate TestLazyExecutable.java source code

package org.hibernate.test.instrument.cases;
import junit.framework.TestCase;
import org.hibernate.CacheMode;
import org.hibernate.Hibernate;
import org.hibernate.LockMode;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.test.instrument.domain.Document;
import org.hibernate.test.instrument.domain.Folder;
import org.hibernate.test.instrument.domain.Owner;

/**
 * @author Steve Ebersole
 */
public class TestLazyExecutable extends AbstractExecutable {
	public void execute() {
		// The following block is repeated 100 times to reproduce HHH-2627.
		// Without the fix, Oracle will run out of cursors using 10g with
		// a default installation (ORA-01000: maximum open cursors exceeded).
		// The number of loops may need to be adjusted depending on the how
		// Oracle is configured.
		// Note: The block is not indented to avoid a lot of irrelevant differences.
		for ( int i=0; i<100; i++ ) {

		SessionFactory factory = getFactory();
		Session s = factory.openSession();
		Transaction t = s.beginTransaction();
		Owner o = new Owner();
		Document doc = new Document();
		Folder fol = new Folder();
		o.setName("gavin");
		doc.setName("Hibernate in Action");
		doc.setSummary("blah");
		doc.updateText("blah blah");
		fol.setName("books");
		doc.setOwner(o);
		doc.setFolder(fol);
		fol.getDocuments().add(doc);
		s.save(o);
		s.save(fol);
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = ( Document ) s.get( Document.class, doc.getId() );
		TestCase.assertTrue( Hibernate.isPropertyInitialized(doc, "weirdProperty"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "name"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "upperCaseName"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "folder"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "owner"));
		doc.getUpperCaseName();  // should force initialization
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "weirdProperty"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "upperCaseName"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "folder"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "owner"));
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		doc.getName();
		TestCase.assertEquals( doc.getText(), "blah blah" );
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		doc.getName();
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "summary"));
		TestCase.assertEquals( doc.getText(), "blah blah" );
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "summary"));
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		doc.setName("HiA");
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		TestCase.assertEquals( doc.getName(), "HiA" );
		TestCase.assertEquals( doc.getText(), "blah blah" );
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		doc.getText();
		doc.setName("HiA second edition");
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "weirdProperty"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "name"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "upperCaseName"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "owner"));
		TestCase.assertEquals( doc.getName(), "HiA second edition" );
		TestCase.assertEquals( doc.getText(), "blah blah" );
		TestCase.assertEquals( doc.getUpperCaseName(), "HIA SECOND EDITION" );
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "weirdProperty"));
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "upperCaseName"));
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		t.commit();
		s.close();

		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		s.lock(doc, LockMode.NONE);
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertEquals( doc.getText(), "blah blah" );
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "text"));
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		t.commit();
		s.close();

		doc.setName("HiA2");

		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		s.saveOrUpdate(doc);
		s.flush();
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertEquals( doc.getText(), "blah blah" );
		TestCase.assertTrue(Hibernate.isPropertyInitialized(doc, "text"));
		doc.updateText("blah blah blah blah");
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = ( Document ) s.createQuery("from Document").uniqueResult();
		TestCase.assertEquals( doc.getName(), "HiA2" );
		TestCase.assertEquals( doc.getText(), "blah blah blah blah" );
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.load( Document.class, doc.getId() );
		doc.getName();
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "text"));
		TestCase.assertFalse(Hibernate.isPropertyInitialized(doc, "summary"));
		t.commit();
		s.close();

		s = factory.openSession();
		s.setCacheMode( CacheMode.IGNORE );
		t = s.beginTransaction();
		doc = (Document) s.createQuery("from Document").uniqueResult();
		//s.delete(doc);
		s.delete( doc.getFolder() );
		s.delete( doc.getOwner() );
		s.flush();
		t.commit();
		s.close();

		}

	}

}