--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2010 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.util;
+
+import java.util.Comparator;\r
+
+public class NumberComparator implements Comparator<Number> {
+
+ public static final NumberComparator INSTANCE = new NumberComparator();
+
+ @Override
+ public int compare(Number n1, Number n2) {
+ boolean integerCompare =
+ (n1 instanceof Float==false) &&
+ (n1 instanceof Double==false) &&
+ (n2 instanceof Float==false) &&
+ (n2 instanceof Double==false);
+
+ if (integerCompare) {
+ long v1 = n1.longValue();
+ long v2 = n2.longValue();
+ return (v1>v2 ? -1 : (v1==v2 ? 0 : 1));
+ } else {
+ double v1 = n1.doubleValue();
+ double v2 = n2.doubleValue();
+ return (v1>v2 ? -1 : (v1==v2 ? 0 : 1));
+ }
+ }
+
+}
+