// Copyright 2014 The Apache Software Foundation
//
// 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.example.app6.pages;
import static org.example.app6.AppConstants.TEST_PERSISTENCE_UNIT_2;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.tapestry5.annotations.Persist;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.jpa.JpaPersistenceConstants;
import org.apache.tapestry5.jpa.annotations.CommitAfter;
import org.example.app6.entities.Thang;
public class PersistThang
{
@PersistenceContext(unitName = TEST_PERSISTENCE_UNIT_2)
private EntityManager entityManager;
@Persist(JpaPersistenceConstants.ENTITY)
@Property
private Thang thang;
@CommitAfter
@PersistenceContext(unitName = TEST_PERSISTENCE_UNIT_2)
void onCreateEntity()
{
final Thang thang = new Thang();
thang.setName("name");
entityManager.persist(thang);
this.thang = thang;
}
void onChangeName()
{
thang.setName("name2");
// No commit, so no real change.
}
void onSetToTransient()
{
thang = new Thang();
}
void onSetToNull()
{
thang = null;
}
@CommitAfter
@PersistenceContext(unitName = TEST_PERSISTENCE_UNIT_2)
void onDelete()
{
final List<Thang> thangs = entityManager.createQuery("select t from Thang t").getResultList();
entityManager.remove(thangs.get(0));
}
}