com.siriusit.spezg.multilib.storage.jpa.JpaMessageRepository.java Source code

Introduction

Here is the source code for com.siriusit.spezg.multilib.storage.jpa.JpaMessageRepository.java

Source

/**
 * 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
 *
 *      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 com.siriusit.spezg.multilib.storage.jpa;

import java.util.Date;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.TypedQuery;

import org.springframework.stereotype.Repository;

import com.siriusit.spezg.multilib.domain.Message;
import com.siriusit.spezg.multilib.domain.Person;
import com.siriusit.spezg.multilib.domain.jpa.MessageDomainObject;
import com.siriusit.spezg.multilib.storage.MessageRepository;

/**
 * 
 * @author Tommy B <Tommy.Bo@SiriusIT.com>
 */
@Repository("messageRepository")
public class JpaMessageRepository implements MessageRepository {

    @PersistenceContext(unitName = "multilib-db")
    private EntityManager entityManager;

    public EntityManager getEntityManager() {
        return entityManager;
    }

    public void setEntityManager(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    @Override
    public Message createMessage(Person receiver, String sender, String subject, String message) {
        Message messageObject = new MessageDomainObject(receiver, sender, new Date(), false, subject, message);
        entityManager.persist(messageObject);
        return messageObject;
    }

    @Override
    public void updateMessage(Message message) {
        if (!entityManager.contains(message))
            entityManager.merge(message);
        else
            entityManager.persist(message);
    }

    @Override
    public void deleteMessage(Message message) {
        entityManager.remove(message);
    }

    @Override
    public List<? extends Message> findMessagesByReceiver(Person receiver) {
        TypedQuery<MessageDomainObject> query = entityManager.createNamedQuery("findMessageByReceiver",
                MessageDomainObject.class);
        query.setParameter("receiver", receiver);
        return query.getResultList();
    }

    @Override
    public Message findMessageById(Long id) {
        return entityManager.find(MessageDomainObject.class, id);
    }

    @Override
    public long countMessagesByViewedState(Person receiver, boolean viewedState) {
        TypedQuery<Long> query = entityManager.createNamedQuery("findMessageByViewedState", Long.class);
        query.setParameter("receiver", receiver);
        query.setParameter("viewed", viewedState);
        return query.getSingleResult();
    }
}