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From jhei...@apache.org
Subject cvs commit: jakarta-poi/src/java/org/apache/poi/util BitFieldFactory.java
Date Fri, 02 Sep 2005 03:27:43 GMT
jheight     2005/09/01 20:27:43

  Added:       src/java/org/apache/poi/util BitFieldFactory.java
  Added a factory implementation for BitFields. Will save a bit of memory.
  Patch to change all fields to use the factory comming soon.
  Revision  Changes    Path
  1.1                  jakarta-poi/src/java/org/apache/poi/util/BitFieldFactory.java
  Index: BitFieldFactory.java
  /* ====================================================================
     Copyright 2002-2004   Apache Software Foundation
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
  ==================================================================== */
  package org.apache.poi.util;
  import java.util.*;
   * Returns immutable Btfield instances.
   * @author Jason Height (jheight at apache dot org)
  public class BitFieldFactory
      private static Map instances = new HashMap();
      public static BitField getInstance(final int mask) {
        BitField f = (BitField)instances.get(new Integer(mask));
        if (f == null) {
          f = new BitField(mask);
          instances.put(new Integer(mask), f);        
        return f;
  }   // end public class BitFieldFactory

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