com.fusesource.examples.persistence.part2.dao.impl.IncidentDAOImpl.java Source code

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Here is the source code for com.fusesource.examples.persistence.part2.dao.impl.IncidentDAOImpl.java

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package com.fusesource.examples.persistence.part2.dao.impl;

/**
  * Copyright 2011 FuseSource
  *
  *    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.
 */

import com.fusesource.examples.persistence.part2.dao.IncidentDAO;
import com.fusesource.examples.persistence.part2.model.Incident;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import java.util.List;

@Repository("daoReport")
public class IncidentDAOImpl implements IncidentDAO {

    private static final transient Log LOG = LogFactory.getLog(IncidentDAOImpl.class);

    @PersistenceContext
    private EntityManager em;
    private static final String findIncidentByReference = "select i from Incident as i where i.incidentRef = :ref";
    private static final String findIncident = "select i from Incident as i";

    public List<Incident> findIncident() {
        Query q = this.em.createQuery("select i from Incident as i");

        List list = q.getResultList();

        return list;
    }

    public List<Incident> findIncident(String key) {
        Query q = this.em.createQuery("select i from Incident as i where i.incidentRef = :ref");
        q.setParameter("ref", key);
        List list = q.getResultList();

        return list;
    }

    public Incident getIncident(long id) {
        return (Incident) this.em.find(Incident.class, Long.valueOf(id));
    }

    public void removeIncident(long id) {
        Object record = this.em.find(Incident.class, Long.valueOf(id));
        this.em.remove(record);
        this.em.flush();
    }

    @Transactional(propagation = Propagation.REQUIRED)
    public void saveIncident(Incident incident) {
        System.out.println(">>> Indident to be saved : " + incident);
        this.em.persist(incident);
        this.em.flush();
    }
}