Mercurial > dive4elements > river

package de.intevation.flys.artifacts.model;

import java.util.List;

import de.intevation.flys.backend.SessionHolder;
import de.intevation.flys.model.River;

import org.hibernate.Query;
import org.hibernate.Session;

/**
 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
 */
public class RiverFactory {

    /** We don't need to instantiate concrete objects of this class. */
    private RiverFactory() {
    }


    /**
     * Returns all rivers that were found in the backend.
     *
     * @return all rivers.
     */
    public static List<River> getRivers() {
        Session session = SessionHolder.HOLDER.get();
        return (List<River>)session
            .createQuery("from River order by name").list();
    }


    /**
     * Returns a River object fetched from database based on its name.
     *
     * @param river The name of a river.
     *
     * @return the River object.
     */
    public static River getRiver(String river) {
        Session session = SessionHolder.HOLDER.get();

        Query query = session.createQuery(
            "from River where name =:name");
        query.setParameter("name", river);

        List<River> rivers = query.list();

        return (rivers != null && rivers.size() > 0) ? rivers.get(0) : null;
    }
}
// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
author	Sascha L. Teichmann <sascha.teichmann@intevation.de>
date	Fri, 17 Jun 2011 16:17:03 +0000
parents	94c176fdcb89
children	feaf778d510e