Source for org.jfree.xml.attributehandlers.AttributeHandler

   1: /* ========================================================================
   2:  * JCommon : a free general purpose class library for the Java(tm) platform
   3:  * ========================================================================
   4:  *
   5:  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   6:  * 
   7:  * Project Info:  http://www.jfree.org/jcommon/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  * 
  27:  * ---------------------
  28:  * AttributeHandler.java
  29:  * ---------------------
  30:  * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
  31:  *
  32:  * Original Author:  Thomas Morgner;
  33:  * Contributor(s):   David Gilbert (for Object Refinery Limited);
  34:  *
  35:  * $Id: AttributeHandler.java,v 1.2 2005/10/18 13:30:16 mungady Exp $
  36:  *
  37:  * Changes 
  38:  * -------
  39:  * 23.09.2003 : Initial version
  40:  *  
  41:  */
  42: 
  43: package org.jfree.xml.attributehandlers;
  44: 
  45: /**
  46:  * An attribute handler is an object that can transform an object into a string or vice
  47:  * versa.
  48:  */
  49: public interface AttributeHandler {
  50:     
  51:     /**
  52:      * Converts an object to an attribute value.
  53:      * 
  54:      * @param o  the object.
  55:      * 
  56:      * @return the attribute value.
  57:      */
  58:     public String toAttributeValue (Object o);
  59:     
  60:     /**
  61:      * Converts a string to a property value.
  62:      * 
  63:      * @param s  the string.
  64:      * 
  65:      * @return a property value.
  66:      */    
  67:     public Object toPropertyValue (String s);
  68: 
  69: }