//$Id: NaturalIdTest.java 18233 2009-12-16 08:05:35Z stliu $
package org.hibernate.test.annotations.naturalid;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Restrictions;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.stat.Statistics;
import org.hibernate.test.annotations.TestCase;
/**
* Test case for NaturalId annotation
*
* @author Emmanuel Bernard
* @author Hardy Ferentschik
*/
@SuppressWarnings("unchecked")
public class NaturalIdTest extends TestCase {
public void testMappingProperties() {
ClassMetadata metaData = getSessions().getClassMetadata(
Citizen.class);
assertTrue("Class should have a natural key", metaData
.hasNaturalIdentifier());
int[] propertiesIndex = metaData.getNaturalIdentifierProperties();
assertTrue("Wrong number of elements", propertiesIndex.length == 2);
}
protected void configure(Configuration cfg) {
cfg.setProperty( "hibernate.cache.use_query_cache", "true" );
}
public void testNaturalIdCached() {
saveSomeCitizens();
Session s = openSession();
Transaction tx = s.beginTransaction();
State france = (State) s.load(State.class, new Integer(2));
Criteria criteria = s.createCriteria(Citizen.class);
criteria.add(Restrictions.naturalId().set("ssn", "1234").set("state",
france));
criteria.setCacheable(true);
Statistics stats = getSessions().getStatistics();
stats.setStatisticsEnabled(true);
stats.clear();
assertEquals("Cache hits should be empty", 0, stats
.getQueryCacheHitCount());
// first query
List results = criteria.list();
assertEquals(1, results.size());
assertEquals("Cache hits should be empty", 0, stats
.getQueryCacheHitCount());
assertEquals("First query should be a miss", 1, stats
.getQueryCacheMissCount());
assertEquals("Query result should be added to cache", 1, stats
.getQueryCachePutCount());
// query a second time - result should be cached
results = criteria.list();
assertEquals("Cache hits should be empty", 1, stats
.getQueryCacheHitCount());
// cleanup
tx.rollback();
s.close();
}
public void testNaturalIdUncached() {
saveSomeCitizens();
Session s = openSession();
Transaction tx = s.beginTransaction();
State france = (State) s.load(State.class, new Integer(2));
Criteria criteria = s.createCriteria(Citizen.class);
criteria.add(Restrictions.naturalId().set("ssn", "1234").set("state",
france));
criteria.setCacheable(false);
Statistics stats = getSessions().getStatistics();
stats.setStatisticsEnabled(true);
stats.clear();
assertEquals("Cache hits should be empty", 0, stats
.getQueryCacheHitCount());
// first query
List results = criteria.list();
assertEquals(1, results.size());
assertEquals("Cache hits should be empty", 0, stats
.getQueryCacheHitCount());
assertEquals("Query result should be added to cache", 0, stats
.getQueryCachePutCount());
// query a second time
results = criteria.list();
assertEquals("Cache hits should be empty", 0, stats
.getQueryCacheHitCount());
// cleanup
tx.rollback();
s.close();
}
protected Class[] getMappings() {
return new Class[] { Citizen.class, State.class,
NaturalIdOnManyToOne.class };
}
private void saveSomeCitizens() {
Citizen c1 = new Citizen();
c1.setFirstname("Emmanuel");
c1.setLastname("Bernard");
c1.setSsn("1234");
State france = new State();
france.setName("Ile de France");
c1.setState(france);
Citizen c2 = new Citizen();
c2.setFirstname("Gavin");
c2.setLastname("King");
c2.setSsn("000");
State australia = new State();
australia.setName("Australia");
c2.setState(australia);
Session s = openSession();
Transaction tx = s.beginTransaction();
s.persist(australia);
s.persist(france);
s.persist(c1);
s.persist(c2);
tx.commit();
s.close();
}
}