/*
* Copyright 2002-2013 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.samples.petclinic.repository.jpa;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.springframework.samples.petclinic.model.Pet;
import org.springframework.samples.petclinic.model.PetType;
import org.springframework.samples.petclinic.repository.PetRepository;
import org.springframework.stereotype.Repository;
/**
* JPA implementation of the {@link PetRepository} interface.
*
* @author Mike Keith
* @author Rod Johnson
* @author Sam Brannen
* @author Michael Isvy
* @since 22.4.2006
*/
@Repository
public class JpaPetRepositoryImpl implements PetRepository {
@PersistenceContext
private EntityManager em;
@Override
@SuppressWarnings("unchecked")
public List<PetType> findPetTypes() {
return this.em.createQuery("SELECT ptype FROM PetType ptype ORDER BY ptype.name").getResultList();
}
@Override
public Pet findById(int id) {
return this.em.find(Pet.class, id);
}
@Override
public void save(Pet pet) {
if (pet.getId() == null) {
this.em.persist(pet);
}
else {
this.em.merge(pet);
}
}
}