Source for org.jfree.report.util.IntegerCache

   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: IntegerCache.java 3525 2007-10-16 11:43:48Z tmorgner $
  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;
  32: 
  33: /**
  34:  * Creation-Date: 03.03.2006, 12:36:07
  35:  *
  36:  * @author Thomas Morgner
  37:  */
  38: public class IntegerCache
  39: {
  40:   private static Integer[] cachedNumbers;
  41: 
  42:   static
  43:   {
  44:     cachedNumbers = new Integer[1000];
  45:     for (int i = 0; i < cachedNumbers.length; i++)
  46:     {
  47:       cachedNumbers[i] = new Integer(i);
  48:     }
  49:   }
  50: 
  51:   private IntegerCache()
  52:   {
  53:   }
  54: 
  55:   public static Integer getInteger(final int i)
  56:   {
  57:     if (i < 0)
  58:     {
  59:       return new Integer(i);
  60:     }
  61:     if (i > 999)
  62:     {
  63:       return new Integer(i);
  64:     }
  65:     return cachedNumbers[i];
  66:   }
  67: }