/*
* 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.immutability;
import java.util.Date;
import javax.persistence.Entity;
import javax.persistence.Id;
import org.hibernate.annotations.Immutable;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.junit.Test;
import org.jboss.logging.Logger;
import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
import static org.junit.Assert.assertEquals;
/**
* @author Vlad Mihalcea
*/
public class EntityImmutabilityTest extends BaseEntityManagerFunctionalTestCase {
private static final Logger log = Logger.getLogger( EntityImmutabilityTest.class );
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class<?>[] {
Event.class
};
}
@Test
public void test() {
//tag::entity-immutability-persist-example[]
doInJPA( this::entityManagerFactory, entityManager -> {
Event event = new Event();
event.setId( 1L );
event.setCreatedOn( new Date( ) );
event.setMessage( "Hibernate User Guide rocks!" );
entityManager.persist( event );
} );
//end::entity-immutability-persist-example[]
//tag::entity-immutability-update-example[]
doInJPA( this::entityManagerFactory, entityManager -> {
Event event = entityManager.find( Event.class, 1L );
log.info( "Change event message" );
event.setMessage( "Hibernate User Guide" );
} );
doInJPA( this::entityManagerFactory, entityManager -> {
Event event = entityManager.find( Event.class, 1L );
assertEquals("Hibernate User Guide rocks!", event.getMessage());
} );
//end::entity-immutability-update-example[]
}
//tag::entity-immutability-example[]
@Entity(name = "Event")
@Immutable
public static class Event {
@Id
private Long id;
private Date createdOn;
private String message;
//Getters and setters are omitted for brevity
//end::entity-immutability-example[]
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Date getCreatedOn() {
return createdOn;
}
public void setCreatedOn(Date createdOn) {
this.createdOn = createdOn;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
//tag::entity-immutability-example[]
}
//end::entity-immutability-example[]
}