/*
 * Copyright (c) 2007 Henri Sivonen
 * Copyright (c) 2008 Mozilla Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a 
 * copy of this software and associated documentation files (the "Software"), 
 * to deal in the Software without restriction, including without limitation 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 * and/or sell copies of the Software, and to permit persons to whom the 
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */

package nu.validator.saxtree;

import org.xml.sax.Locator;

/**
 * A common superclass for character buffer node classes.
 * @version $Id$
 * @author hsivonen
 */
public abstract class CharBufferNode extends Node {

    /**
     * The buffer.
     */
    protected final char[] buffer;
    
    /**
     * The constructor.
     * @param locator the locator
     * @param buf the buffer
     * @param start the offset
     * @param length the length
     */
    CharBufferNode(Locator locator, char[] buf, int start, int length) {
        super(locator);
        this.buffer = new char[length];
        System.arraycopy(buf, start, buffer, 0, length);
    }

    /**
     * Returns the wrapped buffer as a string.
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return new String(buffer);
    }
}