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


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 import org.xquark.extractor.common.SqlWrapperException;
26 import org.xquark.extractor.sql.SqlExpression;
27
28 public final class BinOpArithmetic extends BinaryAtomicOp
29 {
30     private static final String JavaDoc RCSRevision = "$Revision: 1.3 $";
31     private static final String JavaDoc RCSName = "$Name: $";
32
33     private int _operator;
34
35     /**
36      * @param operator
37      * @param leftOperand
38      * @param rightOperand
39      * @roseuid 3AB86A6F026D
40      */
41     public BinOpArithmetic(int operator, Expression leftOperand, Expression rightOperand)
42     {
43         super (leftOperand, rightOperand) ;
44         _operator = operator ;
45     }
46
47     /**
48      * @return int
49      * @roseuid 3AB86AA9000D
50      */
51     public int getOperator()
52     {
53         return _operator ;
54     }
55
56     public String JavaDoc pprint()
57     {
58         return getLeftOperand().pprint() + " " + Constants.ARITHMETICSSTRINGS[_operator] + " " + getRightOperand().pprint();
59     }
60
61     public SqlExpression accept (GenSqlVisitor visitor) throws SqlWrapperException
62     {
63         return visitor.visit(this);
64     }
65
66     public void accept (AlgebraVisitor visitor) throws SqlWrapperException
67     {
68         visitor.visit(this);
69     }
70 }
71
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