/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.userguide.caching;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.persistence.CacheRetrieveMode;
import javax.persistence.CacheStoreMode;
import javax.persistence.Cacheable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import org.hibernate.CacheMode;
import org.hibernate.Session;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.hibernate.annotations.NaturalId;
import org.hibernate.cache.ehcache.EhCacheRegionFactory;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.jpa.QueryHints;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.hibernate.stat.SecondLevelCacheStatistics;
import org.hibernate.stat.Statistics;
import org.junit.Test;
import org.jboss.logging.Logger;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
import static org.junit.Assert.assertNotNull;
/**
* @author Vlad Mihalcea
*/
public class SecondLevelCacheTest extends BaseEntityManagerFunctionalTestCase {
private static final Logger log = Logger.getLogger( SecondLevelCacheTest.class );
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
Person.class
};
}
@Override
@SuppressWarnings( "unchecked" )
protected void addConfigOptions(Map options) {
options.put( AvailableSettings.USE_SECOND_LEVEL_CACHE, Boolean.TRUE.toString() );
options.put( AvailableSettings.CACHE_REGION_FACTORY, EhCacheRegionFactory.class.getName() );
options.put( AvailableSettings.USE_QUERY_CACHE, Boolean.TRUE.toString() );
options.put( AvailableSettings.GENERATE_STATISTICS, Boolean.TRUE.toString() );
options.put( AvailableSettings.CACHE_REGION_PREFIX, "" );
}
@Test
public void testCache() {
doInJPA( this::entityManagerFactory, entityManager -> {
entityManager.persist( new Person() );
Person aPerson= new Person();
aPerson.setName( "John Doe" );
aPerson.setCode( "unique-code" );
entityManager.persist( aPerson );
return aPerson;
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Jpa load by id" );
//tag::caching-entity-jpa-example[]
Person person = entityManager.find( Person.class, 1L );
//end::caching-entity-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native load by id" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-entity-native-example[]
Person person = session.get( Person.class, 1L );
//end::caching-entity-native-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native load by natural-id" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-entity-natural-id-example[]
Person person = session
.byNaturalId( Person.class )
.using( "code", "unique-code")
.load();
//end::caching-entity-natural-id-example[]
assertNotNull(person);
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Jpa query cache" );
//tag::caching-query-jpa-example[]
List<Person> persons = entityManager.createQuery(
"select p " +
"from Person p " +
"where p.name = :name", Person.class)
.setParameter( "name", "John Doe")
.setHint( "org.hibernate.cacheable", "true")
.getResultList();
//end::caching-query-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native query cache" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-query-native-example[]
List<Person> persons = session.createQuery(
"select p " +
"from Person p " +
"where p.name = :name")
.setParameter( "name", "John Doe")
.setCacheable(true)
.list();
//end::caching-query-native-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Jpa query cache region" );
//tag::caching-query-region-jpa-example[]
List<Person> persons = entityManager.createQuery(
"select p " +
"from Person p " +
"where p.id > :id", Person.class)
.setParameter( "id", 0L)
.setHint( QueryHints.HINT_CACHEABLE, "true")
.setHint( QueryHints.HINT_CACHE_REGION, "query.cache.person" )
.getResultList();
//end::caching-query-region-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native query cache" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-query-region-native-example[]
List<Person> persons = session.createQuery(
"select p " +
"from Person p " +
"where p.id > :id")
.setParameter( "id", 0L)
.setCacheable(true)
.setCacheRegion( "query.cache.person" )
.list();
//end::caching-query-region-native-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Jpa query cache store mode " );
//tag::caching-query-region-store-mode-jpa-example[]
List<Person> persons = entityManager.createQuery(
"select p " +
"from Person p " +
"where p.id > :id", Person.class)
.setParameter( "id", 0L)
.setHint( QueryHints.HINT_CACHEABLE, "true")
.setHint( QueryHints.HINT_CACHE_REGION, "query.cache.person" )
.setHint( "javax.persistence.cache.storeMode", CacheStoreMode.REFRESH )
.getResultList();
//end::caching-query-region-store-mode-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native query cache store mode" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-query-region-store-mode-native-example[]
List<Person> persons = session.createQuery(
"select p " +
"from Person p " +
"where p.id > :id")
.setParameter( "id", 0L)
.setCacheable(true)
.setCacheRegion( "query.cache.person" )
.setCacheMode( CacheMode.REFRESH )
.list();
//end::caching-query-region-store-mode-native-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
Session session = entityManager.unwrap( Session.class );
//tag::caching-statistics-example[]
Statistics statistics = session.getSessionFactory().getStatistics();
SecondLevelCacheStatistics secondLevelCacheStatistics =
statistics.getSecondLevelCacheStatistics( "query.cache.person" );
long hitCount = secondLevelCacheStatistics.getHitCount();
long missCount = secondLevelCacheStatistics.getMissCount();
double hitRatio = (double) hitCount / ( hitCount + missCount );
//end::caching-statistics-example[]
return hitRatio;
} );
doInJPA( this::entityManagerFactory, entityManager -> {
log.info( "Native query cache store mode" );
Session session = entityManager.unwrap( Session.class );
//tag::caching-query-region-native-evict-example[]
session.getSessionFactory().getCache().evictQueryRegion( "query.cache.person" );
//end::caching-query-region-native-evict-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
//tag::caching-management-cache-mode-entity-jpa-example[]
Map<String, Object> hints = new HashMap<>( );
hints.put( "javax.persistence.cache.retrieveMode " , CacheRetrieveMode.USE );
hints.put( "javax.persistence.cache.storeMode" , CacheStoreMode.REFRESH );
Person person = entityManager.find( Person.class, 1L , hints);
//end::caching-management-cache-mode-entity-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
Session session = entityManager.unwrap( Session.class );
//tag::caching-management-cache-mode-entity-native-example[]
session.setCacheMode( CacheMode.REFRESH );
Person person = session.get( Person.class, 1L );
//end::caching-management-cache-mode-entity-native-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
//tag::caching-management-cache-mode-query-jpa-example[]
List<Person> persons = entityManager.createQuery(
"select p from Person p", Person.class)
.setHint( QueryHints.HINT_CACHEABLE, "true")
.setHint( "javax.persistence.cache.retrieveMode " , CacheRetrieveMode.USE )
.setHint( "javax.persistence.cache.storeMode" , CacheStoreMode.REFRESH )
.getResultList();
//end::caching-management-cache-mode-query-jpa-example[]
//tag::caching-management-evict-jpa-example[]
entityManager.getEntityManagerFactory().getCache().evict( Person.class );
//end::caching-management-evict-jpa-example[]
});
doInJPA( this::entityManagerFactory, entityManager -> {
Session session = entityManager.unwrap( Session.class );
//tag::caching-management-cache-mode-query-native-example[]
List<Person> persons = session.createQuery(
"select p from Person p" )
.setCacheable( true )
.setCacheMode( CacheMode.REFRESH )
.list();
//end::caching-management-cache-mode-query-native-example[]
//tag::caching-management-evict-native-example[]
session.getSessionFactory().getCache().evictQueryRegion( "query.cache.person" );
//end::caching-management-evict-native-example[]
});
}
//tag::caching-entity-natural-id-mapping-example[]
@Entity(name = "Person")
@Cacheable
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public static class Person {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String name;
@NaturalId
@Column(name = "code", unique = true)
private String code;
public Person() {}
public Person(String name) {
this.name = name;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
}
//end::caching-entity-natural-id-mapping-example[]
}