/*
* Copyright 2002-2014 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.test.context.transaction.ejb.dao;
import javax.ejb.TransactionAttribute;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.test.context.transaction.ejb.model.TestEntity;
/**
* Abstract base class for EJB implementations of {@link TestEntityDao} which
* declare transaction semantics for {@link #incrementCount(String)} via
* {@link TransactionAttribute}.
*
* @author Sam Brannen
* @author Xavier Detant
* @since 4.0.1
* @see RequiredEjbTxTestEntityDao
* @see RequiresNewEjbTxTestEntityDao
*/
public abstract class AbstractEjbTxTestEntityDao implements TestEntityDao {
@PersistenceContext
protected EntityManager entityManager;
protected final TestEntity getTestEntity(String name) {
TestEntity te = entityManager.find(TestEntity.class, name);
if (te == null) {
te = new TestEntity(name, 0);
entityManager.persist(te);
}
return te;
}
protected final int getCountInternal(String name) {
return getTestEntity(name).getCount();
}
protected final int incrementCountInternal(String name) {
TestEntity te = getTestEntity(name);
int count = te.getCount();
count++;
te.setCount(count);
return count;
}
}