Update #0 - First Release

sources/main/java/com/google/common/collect/UsingToStringOrdering.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2007 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.common.collect;
+
+import java.io.Serializable;
+
+import com.google.common.annotations.GwtCompatible;
+
+/**
+ * An ordering that uses the natural order of the string representation of the
+ * values.
+ */
+@GwtCompatible(serializable = true)
+final class UsingToStringOrdering extends Ordering<Object> implements Serializable {
+	static final UsingToStringOrdering INSTANCE = new UsingToStringOrdering();
+
+	@Override
+	public int compare(Object left, Object right) {
+		return left.toString().compareTo(right.toString());
+	}
+
+	// preserve singleton-ness, so equals() and hashCode() work correctly
+	private Object readResolve() {
+		return INSTANCE;
+	}
+
+	@Override
+	public String toString() {
+		return "Ordering.usingToString()";
+	}
+
+	private UsingToStringOrdering() {
+	}
+
+	private static final long serialVersionUID = 0;
+}