001    /*
002     * Copyright (c) 2007 Henri Sivonen
003     * Copyright (c) 2008 Mozilla Foundation
004     *
005     * Permission is hereby granted, free of charge, to any person obtaining a 
006     * copy of this software and associated documentation files (the "Software"), 
007     * to deal in the Software without restriction, including without limitation 
008     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
009     * and/or sell copies of the Software, and to permit persons to whom the 
010     * Software is furnished to do so, subject to the following conditions:
011     *
012     * The above copyright notice and this permission notice shall be included in 
013     * all copies or substantial portions of the Software.
014     *
015     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
016     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
017     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
018     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
019     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
020     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
021     * DEALINGS IN THE SOFTWARE.
022     */
023    
024    package nu.validator.saxtree;
025    
026    import org.xml.sax.Locator;
027    
028    /**
029     * A common superclass for character buffer node classes.
030     * @version $Id$
031     * @author hsivonen
032     */
033    public abstract class CharBufferNode extends Node {
034    
035        /**
036         * The buffer.
037         */
038        protected final char[] buffer;
039        
040        /**
041         * The constructor.
042         * @param locator the locator
043         * @param buf the buffer
044         * @param start the offset
045         * @param length the length
046         */
047        CharBufferNode(Locator locator, char[] buf, int start, int length) {
048            super(locator);
049            this.buffer = new char[length];
050            System.arraycopy(buf, start, buffer, 0, length);
051        }
052    
053        /**
054         * Returns the wrapped buffer as a string.
055         * 
056         * @see java.lang.Object#toString()
057         */
058        @Override
059        public String toString() {
060            return new String(buffer);
061        }
062    }