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1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.utils.datastructures;\r
13 \r
14 import java.util.Iterator;\r
15 import java.util.NoSuchElementException;\r
16 \r
17 public final class EmptyIterator<T> implements Iterator<T> {\r
18 \r
19         @Override\r
20         public boolean hasNext() {              \r
21                 return false;\r
22         }\r
23 \r
24         @Override\r
25         public T next() {\r
26                 throw new NoSuchElementException();             \r
27         }\r
28 \r
29         @Override\r
30         public void remove() {\r
31                 throw new IllegalStateException();              \r
32         }\r
33 \r
34         @SuppressWarnings({ "rawtypes" })\r
35     static public final EmptyIterator instance = new EmptyIterator();   \r
36 \r
37 }\r