com.mclub.server.util.DBWorks.java Source code

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Here is the source code for com.mclub.server.util.DBWorks.java

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/*
 * Copyleft 2010 Mustafa DUMLUPINAR
 *
 * Distributable under GPL license.
 * See terms of license at gnu.org.
 * http://www.gnu.org/licenses/gpl.html
 *
 * dumlupinar01@gmail.com
 * http://mdpinar.blogspot.com/
 *
 */
package com.mclub.server.util;

import java.util.List;

import org.hibernate.Session;

import com.mclub.client.enums.FilmStatus;
import com.mclub.server.model.Movie;
import com.mclub.server.model.Trans;

/**
 * Server tarafi icin, uygulamanin geneli icin veritabani metodlari sunar
 * 
 * @author mdpinar
 * 
 */
public final class DBWorks {

    /**
     * Ornegi alinamaz
     * 
     */
    private DBWorks() {
        ;
    }

    /**
     * Durumu degisen filmin, hareketlerini bir geri alir
     * 
     * @param session
     * @param movie
     * @param unwantedTransId istenmeyen yani silinecek olan trans id
     * 
     */
    @SuppressWarnings("unchecked")
    public static void undoMovieStatus(Session session, Movie movie, Long unwantedTransId) {
        List<Trans> transList = session
                .createQuery("from Trans t " + "where t.movie = :movie " + "  and t.id != :unwantedTransId "
                        + "order by t.actionId desc")
                .setParameter("movie", movie).setParameter("unwantedTransId", unwantedTransId).setFetchSize(1)
                .list();

        Trans prevTrans = (transList.size() > 0 ? transList.get(0) : null);
        if (prevTrans != null) {
            movie.setLastTransId(prevTrans.getId());
            movie.setLastTransDate(prevTrans.getTransDate());
            movie.setLastCustomer(prevTrans.getCustomer());
            movie.setLastStatus(prevTrans.getStatus());
        } else {
            movie.setLastTransId(null);
            movie.setLastTransDate(null);
            movie.setLastCustomer(null);
            movie.setLastStatus(FilmStatus.IN_STORE);
        }
        session.merge(movie);

        Trans trans = (Trans) session.get(Trans.class, unwantedTransId);
        if (trans != null) {
            session.delete(trans);
        }
    }

}