/*\
 * Copyright  2006 Klaus Rogall, Hamburg, Germany (klaus.rogall@web.de). All rights reserved.
 * _____________________________________________________________________________________________________________________
 * 
 * This class is "Open Source" as defined by the Open Source Initiative (OSI). You can redistribute it and/or modify it
 * under the terms of the BSD License. The license text is appended to the end of this file.
\*/

package de.klaro.base.util;



/**
 * Visitor, der eine String-Reprsentationen eines Objekts liefert.
 * 
 * @param   <T> Die Klasse, dessen String-Reprsentation bentigt wird
 */

public interface StringProvider<T extends Object>
{

    /* ______________________________________________________________________________________________________________ *\
    \* Konstanten                                                                                                     */
    

    /* ______________________________________________________________________________________________________________ *\
    \* Instanzmethoden                                                                                                */


    /**
     * Liefert eine String-Reprsentation eines Objektes.
     * 
     * @param   object          Das Objekt
     * @return                  Eine String-Reprsentation
     */

    public abstract String getStringValue(T object);


    /* ______________________________________________________________________________________________________________ *\
    \* Klassen                                                                                                        */

    
    /**
     * Eine String-Provider-Implementation, die einen String mit der toString-Methode erzeugt.
     *
     * @param  <T>              Der Datentyp der Objekte
     */
    
    public static class NaturalStringProvider<T extends Object> extends Object implements StringProvider<T>
    {
        /**
         * Erzeugt eine Instanz dieser Klasse.
         */
        
        public NaturalStringProvider()
        {
            super();
        }


        /**
         * Liefert eine String-Reprsentation eines Objektes.
         * 
         * @param   object          Das Objekt
         * @return                  Eine String-Reprsentation
         */

        public String getStringValue(T object)
        {
            return object.toString();
        }
    }
    
}

/*\
 * _____________________________________________________________________________________________________________________
 * 
 * This software is distributed under the terms of the BSD License:
 * 
 * Copyright  2006 Klaus Rogall, Hamburg, Germany (klaus.rogall@web.de). All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
 *   disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided with the distribution.
 * - Neither the name of the Klaus Rogall nor the names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *   
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * _____________________________________________________________________________________________________________________
\*/