Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.datastructures / src / org / simantics / utils / datastructures / internal / ObjectUtils.java

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/internal/ObjectUtils.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/internal/ObjectUtils.java
new file mode 100644 (file)
index 0000000..6981a45
--- /dev/null
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/internal/ObjectUtils.java
@@ -0,0 +1,39 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in 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.utils.datastructures.internal;\r
+\r
+/**\r
+ * @author Toni Kalajainen\r
+ */\r
+public class ObjectUtils {\r
+\r
+    /**\r
+     * Compares two object for equality.\r
+     * <p>\r
+     * Some times it is annoying to compare two objects if their value may be\r
+     * null.\r
+     * \r
+     * @param o1 obj1\r
+     * @param o2 obj2\r
+     * @return true if equal or both null\r
+     */\r
+    public static boolean objectEquals(Object o1, Object o2) {\r
+        if (o1 == o2)\r
+            return true;\r
+        if (o1 == null && o2 == null)\r
+            return true;\r
+        if (o1 == null || o2 == null)\r
+            return false;\r
+        return o1.equals(o2);\r
+    }\r
+\r
+}\r