KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > xquark > extractor > algebra > UnaryAtomicOp


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.extractor.algebra;
24
25
26 public abstract class UnaryAtomicOp extends UnaryOperator
27 {
28
29     private static final String JavaDoc RCSRevision = "$Revision: 1.4 $";
30     private static final String JavaDoc RCSName = "$Name: $";
31
32
33     public UnaryAtomicOp() {
34     }
35     public UnaryAtomicOp(Expression operand)
36     {
37         super(operand);
38     }
39
40     public boolean replaceChild(Expression oldChild, Expression newChild)
41     {
42         //Trace.enter(this, "replaceChild(Expression oldChild, Expression newChild)");
43
44         boolean retVal = false;
45         if (getOperand() == oldChild) {
46             setOperand(newChild);
47             retVal = true;
48         }
49
50         //Trace.exit(this, "replaceChild(Expression oldChild, Expression newChild)");
51 return retVal;
52     }
53 }
54
Popular Tags