Source for org.jfree.report.util.beans.ShortValueConverter

   1: /**
   2:  * ========================================
   3:  * JFreeReport : a free Java report library
   4:  * ========================================
   5:  *
   6:  * Project Info:  http://reporting.pentaho.org/
   7:  *
   8:  * (C) Copyright 2000-2007, by Object Refinery Limited, Pentaho Corporation and Contributors.
   9:  *
  10:  * This library is free software; you can redistribute it and/or modify it under the terms
  11:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
  12:  * either version 2.1 of the License, or (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  15:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16:  * See the GNU Lesser General Public License for more details.
  17:  *
  18:  * You should have received a copy of the GNU Lesser General Public License along with this
  19:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  20:  * Boston, MA 02111-1307, USA.
  21:  *
  22:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
  23:  * in the United States and other countries.]
  24:  *
  25:  * ------------
  26:  * $Id: ShortValueConverter.java 2725 2007-04-01 18:49:29Z taqua $
  27:  * ------------
  28:  * (C) Copyright 2000-2005, by Object Refinery Limited.
  29:  * (C) Copyright 2005-2007, by Pentaho Corporation.
  30:  */
  31: package org.jfree.report.util.beans;
  32: 
  33: /**
  34:  * A class that handles the conversion of {@link Integer} attributes to and from their
  35:  * {@link String} representation.
  36:  *
  37:  * @author Thomas Morgner
  38:  */
  39: public class ShortValueConverter implements ValueConverter
  40: {
  41: 
  42:   /**
  43:    * Creates a new value converter.
  44:    */
  45:   public ShortValueConverter ()
  46:   {
  47:     super();
  48:   }
  49: 
  50:   /**
  51:    * Converts the attribute to a string.
  52:    *
  53:    * @param o the attribute ({@link Integer} expected).
  54:    * @return A string representing the {@link Integer} value.
  55:    */
  56:   public String toAttributeValue (final Object o)
  57:   {
  58:     if (o instanceof Short)
  59:     {
  60:       return o.toString();
  61:     }
  62:     throw new ClassCastException("Give me a real type.");
  63:   }
  64: 
  65:   /**
  66:    * Converts a string to a {@link Integer}.
  67:    *
  68:    * @param s the string.
  69:    * @return a {@link Integer}.
  70:    */
  71:   public Object toPropertyValue (final String s)
  72:   {
  73:     return new Short(s);
  74:   }
  75: }