Hibernate example source code file (SchemaExportTest.java)

This example Hibernate source code file (SchemaExportTest.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

after, baseunittestcase, configuration, configuration, jdbcservices, mapping, mapping, schemaexport, schemaexport, schemaexporttest, serviceregistry, string, test, test

The Hibernate SchemaExportTest.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, Red Hat Inc. 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 Inc.
 *
 * 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.test.schemaupdate;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.jdbc.spi.JdbcServices;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.testing.ServiceRegistryBuilder;
import org.hibernate.testing.junit4.BaseUnitTestCase;
import org.hibernate.tool.hbm2ddl.SchemaExport;

import static org.junit.Assert.assertEquals;

/**
 * @author Gail Badner
 */
public class SchemaExportTest extends BaseUnitTestCase {
	private final String MAPPING = "org/hibernate/test/schemaupdate/mapping.hbm.xml";

	private ServiceRegistry serviceRegistry;

	@Before
	public void setUp() {
		serviceRegistry = ServiceRegistryBuilder.buildServiceRegistry( Environment.getProperties() );
	}

	@After
	public void tearDown() {
		ServiceRegistryBuilder.destroy( serviceRegistry );
		serviceRegistry = null;
	}

	protected JdbcServices getJdbcServices() {
		return serviceRegistry.getService( JdbcServices.class );
	}

	@Test
	public void testCreateAndDropOnlyType() {
		Configuration cfg = new Configuration();
		cfg.addResource( MAPPING );
		SchemaExport schemaExport = new SchemaExport( serviceRegistry, cfg );
		// create w/o dropping first; (OK because tables don't exist yet
		schemaExport.execute( false, true, false, true );
		assertEquals( 0, schemaExport.getExceptions().size() );
		// create w/o dropping again; should be an exception for each table
		// (2 total) because the tables exist already
		assertEquals( 0, schemaExport.getExceptions().size() );
		schemaExport.execute( false, true, false, true );
		assertEquals( 2, schemaExport.getExceptions().size() );
		// drop tables only
		schemaExport.execute( false, true, true, false );
		assertEquals( 0, schemaExport.getExceptions().size() );
	}

	@Test
	public void testBothType() {
		Configuration cfg = new Configuration();
		cfg.addResource( MAPPING );
		SchemaExport schemaExport = new SchemaExport( serviceRegistry, cfg );
		// drop before create (nothing to drop yeT)
		schemaExport.execute( false, true, false, false );
		assertEquals( 0, schemaExport.getExceptions().size() );
		// drop before crete again (this time drops the tables before re-creating)
		schemaExport.execute( false, true, false, false );
		assertEquals( 0, schemaExport.getExceptions().size() );
		// drop tables
		schemaExport.execute( false, true, true, false );
		assertEquals( 0, schemaExport.getExceptions().size() );
	}

	@Test
	public void testCreateAndDrop() {
		Configuration cfg = new Configuration();
		cfg.addResource( MAPPING );
		SchemaExport schemaExport = new SchemaExport( serviceRegistry, cfg );
		// should drop before creating, but tables don't exist yet
		schemaExport.create( false, true);
		assertEquals( 0, schemaExport.getExceptions().size() );
		// call create again; it should drop tables before re-creating
		schemaExport.create( false, true );
		assertEquals( 0, schemaExport.getExceptions().size() );
		// drop the tables
		schemaExport.drop( false, true );
		assertEquals( 0, schemaExport.getExceptions().size() );
	}
}