/*
* Copyright 2008-2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.batch.item.database;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import javax.sql.DataSource;
import org.hibernate.SessionFactory;
import org.hibernate.StatelessSession;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* Tests for {@link HibernateCursorItemReader} using {@link StatelessSession}.
*
* @author Robert Kasanicky
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "data-source-context.xml")
public class HibernateCursorProjectionItemReaderIntegrationTests {
@Autowired
private DataSource dataSource;
private void initializeItemReader(HibernateCursorItemReader<?> reader,
String hsqlQuery) throws Exception {
LocalSessionFactoryBean factoryBean = new LocalSessionFactoryBean();
factoryBean.setDataSource(dataSource);
factoryBean.setMappingLocations(new Resource[] { new ClassPathResource(
"Foo.hbm.xml", getClass()) });
factoryBean.afterPropertiesSet();
SessionFactory sessionFactory = factoryBean
.getObject();
reader.setQueryString(hsqlQuery);
reader.setSessionFactory(sessionFactory);
reader.afterPropertiesSet();
reader.setSaveState(true);
reader.open(new ExecutionContext());
}
@Test
public void testMultipleItemsInProjection() throws Exception {
HibernateCursorItemReader<Object[]> reader = new HibernateCursorItemReader<Object[]>();
initializeItemReader(reader, "select f.value, f.name from Foo f");
Object[] foo1 = reader.read();
assertEquals(1, foo1[0]);
}
@Test
public void testSingleItemInProjection() throws Exception {
HibernateCursorItemReader<Object> reader = new HibernateCursorItemReader<Object>();
initializeItemReader(reader, "select f.value from Foo f");
Object foo1 = reader.read();
assertEquals(1, foo1);
}
@Test
public void testSingleItemInProjectionWithArrayType() throws Exception {
HibernateCursorItemReader<Object[]> reader = new HibernateCursorItemReader<Object[]>();
initializeItemReader(reader, "select f.value from Foo f");
try {
Object[] foo1 = reader.read();
assertNotNull(foo1);
fail("Expected ClassCastException");
} catch(ClassCastException e) {
// expected
}
}
}