-/*******************************************************************************\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.Iterator;\r
-\r
-public class SingletonCollection<T> extends ImmutableSet<T> {\r
-\r
- T content; \r
- \r
- public SingletonCollection(T content) {\r
- this.content = content;\r
- }\r
-\r
- @Override\r
- public boolean contains(Object o) {\r
- return content.equals(o);\r
- }\r
-\r
- @Override\r
- public boolean containsAll(Collection<?> c) {\r
- for(Object o : c)\r
- if(!content.equals(o))\r
- return false;\r
- return true;\r
- }\r
-\r
- @Override\r
- public boolean isEmpty() {\r
- return content == null;\r
- }\r
- \r
- static class SingletonIterator<T> extends ImmutableIterator<T> {\r
-\r
- T content;\r
- \r
- public SingletonIterator(T content) {\r
- this.content = content;\r
- }\r
-\r
- @Override\r
- public boolean hasNext() {\r
- return(content != null);\r
- }\r
-\r
- @Override\r
- public T next() {\r
- T ret = content;\r
- content = null;\r
- return ret;\r
- }\r
- \r
- }\r
-\r
- @Override\r
- public Iterator<T> iterator() {\r
- return new SingletonIterator<T>(content);\r
- }\r
-\r
- @Override\r
- public int size() {\r
- if(content == null)\r
- return 0;\r
- else\r
- return 1;\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.Iterator;
+
+public class SingletonCollection<T> extends ImmutableSet<T> {
+
+ T content;
+
+ public SingletonCollection(T content) {
+ this.content = content;
+ }
+
+ @Override
+ public boolean contains(Object o) {
+ return content.equals(o);
+ }
+
+ @Override
+ public boolean containsAll(Collection<?> c) {
+ for(Object o : c)
+ if(!content.equals(o))
+ return false;
+ return true;
+ }
+
+ @Override
+ public boolean isEmpty() {
+ return content == null;
+ }
+
+ static class SingletonIterator<T> extends ImmutableIterator<T> {
+
+ T content;
+
+ public SingletonIterator(T content) {
+ this.content = content;
+ }
+
+ @Override
+ public boolean hasNext() {
+ return(content != null);
+ }
+
+ @Override
+ public T next() {
+ T ret = content;
+ content = null;
+ return ret;
+ }
+
+ }
+
+ @Override
+ public Iterator<T> iterator() {
+ return new SingletonIterator<T>(content);
+ }
+
+ @Override
+ public int size() {
+ if(content == null)
+ return 0;
+ else
+ return 1;
+ }
+
+}