-/*******************************************************************************\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;\r
-\r
-import java.util.Collection;\r
-import java.util.ConcurrentModificationException;\r
-\r
-public class SelectionUtils {\r
-\r
- public static <T> T getSingle(Collection<T> collection) {\r
- if(collection.size() != 1)\r
- throw new RuntimeException("Size of the collection is not one.");\r
- for(T obj : collection)\r
- return obj;\r
- throw new ConcurrentModificationException("collection was emptied before iteration");\r
- }\r
- \r
- public static <T> T getAtMostOne(Collection<T> collection) {\r
- if(collection.size() > 1)\r
- throw new RuntimeException("Size of the collection is greater than one.");\r
- for(T obj : collection)\r
- return obj;\r
- return null;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.utils.datastructures;
+
+import java.util.Collection;
+import java.util.ConcurrentModificationException;
+
+public class SelectionUtils {
+
+ public static <T> T getSingle(Collection<T> collection) {
+ if(collection.size() != 1)
+ throw new RuntimeException("Size of the collection is not one.");
+ for(T obj : collection)
+ return obj;
+ throw new ConcurrentModificationException("collection was emptied before iteration");
+ }
+
+ public static <T> T getAtMostOne(Collection<T> collection) {
+ if(collection.size() > 1)
+ throw new RuntimeException("Size of the collection is greater than one.");
+ for(T obj : collection)
+ return obj;
+ return null;
+ }
+
+}