--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/math/IJKey.java	Fri Sep 28 12:13:53 2012 +0200
@@ -0,0 +1,39 @@
+package de.intevation.gnv.math;
+
+import java.io.Serializable;
+
+/**
+ * @author Sascha L. Teichmann <sascha.teichmann@intevation.de>
+ */
+public class IJKey
+implements   Serializable
+{
+    public int i;
+    public int j;
+
+    public IJKey() {
+    }
+
+    public IJKey(int i, int j) {
+        this.i = i;
+        this.j = j;
+    }
+
+    public void sort() {
+        if (i > j) {
+            int t = i;
+            i = j;
+            j = t;
+        }
+    }
+
+    public int hashCode() {
+        return (i << 16) | j;
+    }
+
+    public boolean equals(Object obj) {
+        IJKey other = (IJKey)obj;
+        return i == other.i && j == other.j;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: