PersonDAO.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.superbiz.dao;

import org.superbiz.domain.Person;

import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import java.util.List;

@Singleton
@Lock(LockType.READ)
public class PersonDAO {

    @PersistenceContext
    private EntityManager em;

    public Person save(final String name) {
        final Person person = new Person();
        person.setName(name);
        em.persist(person);
        return person;
    }

    public List<Person> findAll() {
        return em.createNamedQuery("Person.findAll", Person.class).getResultList();
    }
}