--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/model/DGM.java	Fri Sep 28 12:14:59 2012 +0200
@@ -0,0 +1,115 @@
+package de.intevation.flys.model;
+
+import java.io.Serializable;
+import java.util.List;
+import java.math.BigDecimal;
+
+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 de.intevation.flys.backend.SessionHolder;
+
+
+@Entity
+@Table(name = "dem")
+public class DGM implements Serializable {
+
+    private Integer    id;
+
+    private River      river;
+
+    private BigDecimal lower;
+    private BigDecimal upper;
+
+    private String     path;
+
+
+    public DGM() {
+    }
+
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Id
+    @Column(name = "id")
+    public Integer getId() {
+        return id;
+    }
+
+    public void setRiver(River river) {
+        this.river = river;
+    }
+
+    @OneToOne
+    @JoinColumn(name = "river_id")
+    public River getRiver() {
+        return river;
+    }
+
+    public void setLower(BigDecimal lower) {
+        this.lower = lower;
+    }
+
+    @Column(name = "lower")
+    public BigDecimal getLower() {
+        return lower;
+    }
+
+    public void setUpper(BigDecimal upper) {
+        this.upper = upper;
+    }
+
+    @Column(name = "upper")
+    public BigDecimal getUpper() {
+        return upper;
+    }
+
+    public void setPath(String path) {
+        this.path = path;
+    }
+
+    @Column(name = "path")
+    public String getPath() {
+        return path;
+    }
+
+
+    public static DGM getDGM(int id) {
+        Session session = SessionHolder.HOLDER.get();
+
+        Query query = session.createQuery(
+            "from DGM where Id =:id");
+        query.setParameter("id", id);
+
+        List<DGM> result = query.list();
+
+        return result.isEmpty() ? null : result.get(0);
+    }
+
+
+    public static DGM getDGM(String river, double lower, double upper) {
+        Session session = SessionHolder.HOLDER.get();
+
+        Query query = session.createQuery(
+            "from DGM where river.name =:river and " +
+            "lower <=:lower and upper >=:lower and " +
+            "lower <=:upper and upper >=:upper");
+        query.setParameter("river", river);
+        query.setParameter("lower", new BigDecimal(lower));
+        query.setParameter("upper", new BigDecimal(upper));
+
+        List<DGM> result = query.list();
+
+        return result.isEmpty() ? null : result.get(0);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :