Mercurial > dive4elements > river
diff artifacts/src/main/java/org/dive4elements/river/artifacts/model/RiverFactory.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
author | Sascha L. Teichmann <teichmann@intevation.de> |
---|---|
date | Thu, 25 Apr 2013 15:23:37 +0200 |
parents | flys-artifacts/src/main/java/org/dive4elements/river/artifacts/model/RiverFactory.java@bd047b71ab37 |
children | 4897a58c8746 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/model/RiverFactory.java Thu Apr 25 15:23:37 2013 +0200 @@ -0,0 +1,71 @@ +package org.dive4elements.river.artifacts.model; + +import java.util.List; + +import org.dive4elements.river.backend.SessionHolder; +import org.dive4elements.river.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 session.createQuery("from River order by name").list(); + } + + + /** + * Returns a River object fetched from database based on its id. + * + * @param river_id The id of the desired river. + * + * @return the river. + */ + public static River getRiver(int river_id) { + Session session = SessionHolder.HOLDER.get(); + + Query query = session.createQuery("from River where id=:river_id"); + query.setParameter("river_id", river_id); + + List<River> rivers = query.list(); + + return rivers.isEmpty() ? null : rivers.get(0); + } + + + /** + * 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.isEmpty() ? null : rivers.get(0); + } +} +// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :