Mercurial > dive4elements > river
comparison 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 |
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| 5837:d9901a08d0a6 | 5838:5aa05a7a34b7 |
|---|---|
| 1 package org.dive4elements.river.artifacts.model; | |
| 2 | |
| 3 import java.util.List; | |
| 4 | |
| 5 import org.dive4elements.river.backend.SessionHolder; | |
| 6 import org.dive4elements.river.model.River; | |
| 7 | |
| 8 import org.hibernate.Query; | |
| 9 import org.hibernate.Session; | |
| 10 | |
| 11 /** | |
| 12 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 13 */ | |
| 14 public class RiverFactory { | |
| 15 | |
| 16 /** We don't need to instantiate concrete objects of this class. */ | |
| 17 private RiverFactory() { | |
| 18 } | |
| 19 | |
| 20 | |
| 21 /** | |
| 22 * Returns all rivers that were found in the backend. | |
| 23 * | |
| 24 * @return all rivers. | |
| 25 */ | |
| 26 public static List<River> getRivers() { | |
| 27 Session session = SessionHolder.HOLDER.get(); | |
| 28 | |
| 29 return session.createQuery("from River order by name").list(); | |
| 30 } | |
| 31 | |
| 32 | |
| 33 /** | |
| 34 * Returns a River object fetched from database based on its id. | |
| 35 * | |
| 36 * @param river_id The id of the desired river. | |
| 37 * | |
| 38 * @return the river. | |
| 39 */ | |
| 40 public static River getRiver(int river_id) { | |
| 41 Session session = SessionHolder.HOLDER.get(); | |
| 42 | |
| 43 Query query = session.createQuery("from River where id=:river_id"); | |
| 44 query.setParameter("river_id", river_id); | |
| 45 | |
| 46 List<River> rivers = query.list(); | |
| 47 | |
| 48 return rivers.isEmpty() ? null : rivers.get(0); | |
| 49 } | |
| 50 | |
| 51 | |
| 52 /** | |
| 53 * Returns a River object fetched from database based on its name. | |
| 54 * | |
| 55 * @param river The name of a river. | |
| 56 * | |
| 57 * @return the River object. | |
| 58 */ | |
| 59 public static River getRiver(String river) { | |
| 60 Session session = SessionHolder.HOLDER.get(); | |
| 61 | |
| 62 Query query = session.createQuery( | |
| 63 "from River where name =:name"); | |
| 64 query.setParameter("name", river); | |
| 65 | |
| 66 List<River> rivers = query.list(); | |
| 67 | |
| 68 return rivers.isEmpty() ? null : rivers.get(0); | |
| 69 } | |
| 70 } | |
| 71 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |