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Java > Open Source Codes > org > xquark > extractor > sql > Context


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.sql;
24
25
26 public class Context {
27
28     private static final String JavaDoc RCSRevision = "$Revision: 1.6 $";
29     private static final String JavaDoc RCSName = "$Name: $";
30
31     public boolean outerJoinPredicate = false;
32     public SqlRenameRelation innerTable = null;
33     public boolean selectList = false;
34     public Context parent = null;
35     
36     public StatementInfo currentStmt = new StatementInfo();
37     private int parameterCounter = 0;
38
39     public Context() {}
40     
41     public Context(Context parent) { this.parent = parent;}
42     
43     private int getCurrentParameterIndex() { return ++parameterCounter;}
44     
45     public void registerParameter(SqlPlaceHolder placeHolder) {
46         if (parent != null)
47             parent.registerParameter(placeHolder);
48         currentStmt.registerParameter(placeHolder, getCurrentParameterIndex());
49     }
50 }
51
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