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blueBill Stats - JPA
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/***********************************************************************************************************************
 *
 * blueBill Stats
 * Copyright (C) 2011-2011 by Tidalwave s.a.s. (http://www.tidalwave.it)
 *
 ***********************************************************************************************************************
 *
 * 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.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://bluebill.tidalwave.it/mobile/
 * SCM: http://java.net/hg/bluebill-server~stats-src
 *
 **********************************************************************************************************************/
package it.tidalwave.bluebill.stats.domain.jpa;

import javax.annotation.Nonnull;
import javax.persistence.Query;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import it.tidalwave.role.IdFactory;
import it.tidalwave.bluebill.stats.domain.Ping;
import it.tidalwave.bluebill.stats.domain.PingDao;
import it.tidalwave.bluebill.stats.domain.PingFinder;
import it.tidalwave.bluebill.stats.domain.JpaPing;
import org.springframework.transaction.annotation.Transactional;
import lombok.NoArgsConstructor;
import lombok.RequiredArgsConstructor;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id: JpaPingDao.java,v cc9c3c80517c 2011/07/15 21:16:27 fabrizio $
 *
 **********************************************************************************************************************/
@RequiredArgsConstructor @NoArgsConstructor
public class JpaPingDao implements PingDao
  {
    @Nonnull
    private IdFactory idFactory;
    
    @PersistenceContext
    private EntityManager em;
    
    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     * 
     ******************************************************************************************************************/
    @Override @Nonnull
    public PingFinder findPings() 
      {
        return new JpaPingFinder(this);
      }
        
    /*******************************************************************************************************************
     *
     * {@inheritDoc}
     * 
     ******************************************************************************************************************/
    @Override @Transactional
    public void insert (final @Nonnull Ping ping)
      {
        em.persist(new JpaPing(ping, idFactory.createId(JpaPing.class).stringValue()));        
      }

    /*******************************************************************************************************************
     *
     * 
     ******************************************************************************************************************/
    @Nonnull @Transactional // FIXME: @Transactional doesn't work in a non-public method
    /* package */ Query createQuery (final @Nonnull String jpaql)
      {
        return em.createQuery(jpaql);
      }
  }