--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-client/src/main/java/org/dive4elements/river/client/client/event/ParameterChangeEvent.java	Thu Apr 25 12:31:32 2013 +0200
@@ -0,0 +1,48 @@
+package de.intevation.flys.client.client.event;
+
+import de.intevation.flys.client.shared.model.Artifact;
+
+
+/**
+ * This events stores references to the old artifact and the new one.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public class ParameterChangeEvent {
+
+    public static enum Type {
+        FORWARD, BACK
+    }
+
+
+    protected Artifact oldArtifact;
+    protected Artifact newArtifact;
+
+    protected Type     type;
+
+
+    public ParameterChangeEvent(Artifact old, Artifact newArt) {
+        this(old, newArt, Type.FORWARD);
+    }
+
+
+    public ParameterChangeEvent(Artifact oArt, Artifact nArt, Type type) {
+        oldArtifact = oArt;
+        newArtifact = nArt;
+        this.type   = type;
+    }
+
+
+    public Artifact getOldValue() {
+        return oldArtifact;
+    }
+
+    public Artifact getNewValue() {
+        return newArtifact;
+    }
+
+    public Type getType() {
+        return type;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :