--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/model/WaterlevelDifference.java	Fri Sep 28 12:14:31 2012 +0200
@@ -0,0 +1,119 @@
+package de.intevation.flys.model;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Table;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Column;
+import javax.persistence.SequenceGenerator;
+import javax.persistence.GenerationType;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.OneToMany;
+
+import org.apache.log4j.Logger;
+
+
+@Entity
+@Table(name = "waterlevel_difference")
+public class WaterlevelDifference
+implements   Serializable
+{
+    private static Logger logger = Logger.getLogger(WaterlevelDifference.class);
+
+    private Integer id;
+
+    private River river;
+
+    private Unit unit;
+
+    private List<WaterlevelDifferenceColumn> columns;
+
+    private String description;
+
+
+    public WaterlevelDifference() {
+        columns = new ArrayList<WaterlevelDifferenceColumn>();
+    }
+
+
+    public WaterlevelDifference(River river, Unit unit) {
+        this();
+
+        this.river = river;
+        this.unit  = unit;
+    }
+
+
+    public WaterlevelDifference(River river, Unit unit, String description) {
+        this(river, unit);
+
+        this.description = description;
+    }
+
+
+    @Id
+    @SequenceGenerator(
+        name           = "SEQUENCE_WATERLEVEL_DIFFERENCE_ID_SEQ",
+        sequenceName   = "WATERLEVEL_DIFFERENCE_ID_SEQ",
+        allocationSize = 1)
+    @GeneratedValue(
+        strategy  = GenerationType.SEQUENCE,
+        generator = "SEQUENCE_WATERLEVEL_DIFFERENCE_ID_SEQ")
+    @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;
+    }
+
+    @OneToOne
+    @JoinColumn(name = "unit_id")
+    public Unit getUnit() {
+        return unit;
+    }
+
+    public void setUnit(Unit unit) {
+        this.unit = unit;
+    }
+
+    @Column(name = "description")
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    @OneToMany
+    @JoinColumn(name = "difference_id")
+    public List<WaterlevelDifferenceColumn> getColumns() {
+        return columns;
+    }
+
+    public void setColumns(List<WaterlevelDifferenceColumn> columns) {
+        this.columns = columns;
+    }
+
+    public void addColumn(WaterlevelDifferenceColumn column) {
+        this.columns.add(column);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :