/*
* JBoss, Home of Professional Open Source
* Copyright 2015, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.as.quickstarts.tasks;
import java.util.List;
import javax.ejb.Stateful;
import javax.inject.Inject;
import javax.persistence.EntityManager;
/**
* Provides functionality for manipulation with users using persistence context from {@link Resources}.
*
* @author Lukas Fryc
* @author Oliver Kiss
*
*/
@Stateful
public class UserDaoImpl implements UserDao {
@Inject
EntityManager em;
public User getForUsername(String username) {
List<User> result = em.createQuery("select u from User u where u.username = ?1", User.class).setParameter(1, username)
.getResultList();
if (result.isEmpty()) {
return null;
}
return result.get(0);
}
public void createUser(User user) {
em.persist(user);
}
}