SfNVL


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  
27  public class SfNVL extends org.xquark.extractor.sql.SqlFunction {
28  
29      private static final String   RCSRevision = "$Revision: 1.4 $";
30      private static final String   RCSName     = "$Name:  $";
31  
32  
33      public SfNVL()
34      {
35          super("SfNVL");
36      }
37  
38      public SfNVL( SqlExpression arg0, SqlExpression arg1)
39      {
40          super("SfNVL");
41          setArgument(0,arg0);
42          setArgument(1,arg1);
43      }
44  
45      public String   toSql(Context context)
46      {
47          //Trace.enter(this,"toSql(Context context)");
48  
49          StringBuffer       retVal = new StringBuffer  ();
50          retVal.append("CONTAINS(");
51          retVal.append(getArgument(0).toSql(context));
52          retVal.append(", ");
53          retVal.append(getArgument(1).toSql(context));
54  
55          //Trace.exit(this,"toSql(Context context)");
56          return retVal.toString();
57      }
58  
59  }
60
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