Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ImmutableCollection.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ImmutableCollection.java
new file mode 100644 (file)
index 0000000..06a3970
--- /dev/null
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ImmutableCollection.java
@@ -0,0 +1,62 @@
+/*******************************************************************************\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 abstract class ImmutableCollection<T> implements Collection<T> {\r
+\r
+       public boolean add(T e) {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       public boolean addAll(Collection<? extends T> c) {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       public void clear() {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       public boolean remove(Object o) {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       public boolean removeAll(Collection<?> c) {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       public boolean retainAll(Collection<?> c) {\r
+               throw new UnsupportedOperationException();\r
+       }\r
+\r
+       abstract public boolean contains(Object o);\r
+       abstract public boolean containsAll(Collection<?> c);\r
+       abstract public boolean isEmpty();\r
+       abstract public Iterator<T> iterator();         \r
+       abstract public int size();\r
+       \r
+       public Object[] toArray() {\r
+               Object[] ret = new Object[size()];\r
+               int i=0;\r
+               for(T a : this) \r
+                       ret[i++] = a;\r
+               return ret;\r
+       }\r
+\r
+       public <U> U[] toArray(U[] a) {\r
+               // TODO\r
+               throw new UnsupportedOperationException();\r
+       }\r
+       \r
+}\r