--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/model/RiverAxis.java	Fri Sep 28 12:15:04 2012 +0200
@@ -0,0 +1,112 @@
+package de.intevation.flys.model;
+
+import java.io.Serializable;
+import java.util.List;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.Table;
+
+import org.hibernate.Session;
+import org.hibernate.Query;
+import org.hibernate.annotations.Type;
+
+import com.vividsolutions.jts.geom.LineString;
+
+import de.intevation.flys.backend.SessionHolder;
+
+
+/**
+ * There is a modeling problem with the RiverAxis. The initial idea was, that a
+ * river can have a riveraxis that consist of exact one geometry. Now, it has
+ * turned out, that a single geometry is not enough for a riveraxis (arm of a
+ * river, inflows, ...). As workaround, we now expect, that a river can just
+ * have a single riveraxis.
+ */
+@Entity
+@Table(name = "river_axes")
+public class RiverAxis
+implements   Serializable
+{
+    private Integer    id;
+    private Integer    kind;
+    private River      river;
+    private LineString geom;
+    
+    public static final int DEFAULT_KIND = 0;
+    
+    public static final int KIND_OFFICIAL = 1;
+    public static final int KIND_OUTSOURCED = 2;
+
+    public RiverAxis() {
+    }
+
+
+    @Id
+    @Column(name = "id")
+    public Integer getId() {
+        return id;
+    }
+
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+
+    @OneToOne
+    @JoinColumn(name = "river_id")
+    public River getRiver() {
+        return river;
+    }
+
+
+    public void setRiver(River river) {
+        this.river = river;
+    }
+
+
+    @Column(name = "kind")
+    public Integer getKind() {
+        return kind;
+    }
+
+
+    public void setKind(Integer kind) {
+        this.kind = kind;
+    }
+
+
+    @Column(name = "geom")
+    @Type(type = "org.hibernatespatial.GeometryUserType")
+    public LineString getGeom() {
+        return geom;
+    }
+
+
+    public void setGeom(LineString geom) {
+        this.geom = geom;
+    }
+
+
+    public static List<RiverAxis> getRiverAxis(String river) {
+        return getRiverAxis(river, DEFAULT_KIND);
+    }
+    
+    public static List<RiverAxis> getRiverAxis(String river, int kind) {
+        Session session = SessionHolder.HOLDER.get();
+
+        Query query = session.createQuery(
+            "from RiverAxis where river.name =:river AND kind =:kind");
+        query.setParameter("river", river);
+        query.setParameter("kind", kind);
+
+        List<RiverAxis> list = query.list();
+
+        return list.isEmpty() ? null : list;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :