--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/Pair.d	Tue Apr 14 11:35:29 2009 +0200
@@ -0,0 +1,71 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+module org.eclipse.core.internal.databinding.Pair;
+
+import java.lang.all;
+
+/**
+ * Class Pair.  Represents a mathematical pair of objects (a, b).
+ * @since 1.0
+ */
+public class Pair {
+
+    /**
+     * a in the pair (a, b)
+     */
+    public final Object a;
+
+    /**
+     * b in the pair (a, b)
+     */
+    public final Object b;
+
+    /**
+     * Construct a Pair(a, b)
+     * 
+     * @param a a in the pair (a, b)
+     * @param b b in the pair (a, b)
+     */
+    public this(Object a, Object b) {
+        this.a = a;
+        this.b = b;
+    }
+
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((a is null) ? 0 : a.hashCode());
+        result = prime * result + ((b is null) ? 0 : b.hashCode());
+        return result;
+    }
+
+    public override bool opEquals(Object obj) {
+        if (this is obj)
+            return true;
+        if (obj is null)
+            return false;
+        if (getClass() !is obj.getClass())
+            return false;
+        Pair other = cast(Pair) obj;
+        if (a is null) {
+            if (other.a !is null)
+                return false;
+        } else if (!a.equals(other.a))
+            return false;
+        if (b is null) {
+            if (other.b !is null)
+                return false;
+        } else if (!b.equals(other.b))
+            return false;
+        return true;
+    }
+
+}