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Java > Open Source Codes > org > columba > core > base > BooleanCompressor


1 //The contents of this file are subject to the Mozilla Public License Version 1.1
2 //(the "License"); you may not use this file except in compliance with the
3 //License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
4 //
5 //Software distributed under the License is distributed on an "AS IS" basis,
6 //WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
7 //for the specific language governing rights and
8 //limitations under the License.
9 //
10 //The Original Code is "The Columba Project"
11 //
12 //The Initial Developers of the Original Code are Frederik Dietz and Timo Stich.
13 //Portions created by Frederik Dietz and Timo Stich are Copyright (C) 2003.
14 //
15 //All Rights Reserved.
16 package org.columba.core.base;
17
18 public class BooleanCompressor {
19     public static int compress(Boolean JavaDoc[] input) {
20     int result = 0;
21
22     for (int i = 0; i < input.length; i++) {
23         if (input[i].booleanValue()) {
24         result |= (1 << i);
25         }
26     }
27
28     return result;
29     }
30
31     public static Boolean JavaDoc decompress(int input, int index) {
32     if (((input >> index) & 1) == 1) {
33         return Boolean.TRUE;
34     }
35     return Boolean.FALSE;
36     }
37 }
38
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