001    /*
002     * Copyright (c) 2006 Henri Sivonen
003     *
004     * Permission is hereby granted, free of charge, to any person obtaining a 
005     * copy of this software and associated documentation files (the "Software"), 
006     * to deal in the Software without restriction, including without limitation 
007     * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
008     * and/or sell copies of the Software, and to permit persons to whom the 
009     * Software is furnished to do so, subject to the following conditions:
010     *
011     * The above copyright notice and this permission notice shall be included in 
012     * all copies or substantial portions of the Software.
013     *
014     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
015     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
016     * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
017     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
018     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
019     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
020     * DEALINGS IN THE SOFTWARE.
021     */
022    
023    package org.whattf.datatype;
024    
025    import org.relaxng.datatype.Datatype;
026    
027    /**
028     * This datatype shall accept any string that consists of one or more characters 
029     * and does not contain any whitespace characters.
030     * <p>The ID-type of this datatype is IDREF.
031     * @version $Id: Idref.java 121 2006-11-18 11:51:44Z hsivonen $
032     * @author hsivonen
033     */
034    public final class Idref extends Id {
035    
036        /**
037         * The singleton instance.
038         */
039        public static final Idref THE_INSTANCE = new Idref();
040        
041        /**
042         * Package-private constructor
043         */
044        private Idref() {
045            super();
046        }
047    
048        /**
049         * Returns <code>Datatype.ID_TYPE_IDREF</code>.
050         * @return <code>Datatype.ID_TYPE_IDREF</code>
051         * @see org.relaxng.datatype.Datatype#getIdType()
052         */
053        public int getIdType() {
054            return Datatype.ID_TYPE_IDREF;
055        }   
056    }