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@@ -0,0 +1,55 @@ |
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/* |
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* Copyright 2005 The Apache Software Foundation. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/* $Id$ */ |
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package org.apache.fop.fo; |
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import java.util.NoSuchElementException; |
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/** |
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* Class providing an iterator for zero characters. Used by the Block FO. |
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*/ |
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public class NullCharIterator extends CharIterator { |
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private static CharIterator instance; |
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public static CharIterator getInstance() { |
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if (instance == null) { |
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instance = new NullCharIterator(); |
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} |
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return instance; |
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} |
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/** |
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* Constructor |
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*/ |
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public NullCharIterator() { |
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//nop |
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} |
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/** @see java.util.Iterator#hasNext() */ |
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public boolean hasNext() { |
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return false; |
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} |
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/** @see org.apache.fop.fo.CharIterator#nextChar() */ |
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public char nextChar() throws NoSuchElementException { |
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throw new NoSuchElementException(); |
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} |
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} |
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