ExpressionFunctionFloor


1   /* =============================================================
2    * SmallSQL : a free Java DBMS library for the Java(tm) platform
3    * =============================================================
4    *
5    * (C) Copyright 2004-2006, by Volker Berlin.
6    *
7    * Project Info:  http://www.smallsql.de/
8    *
9    * This library is free software; you can redistribute it and/or modify it 
10   * under the terms of the GNU Lesser General Public License as published by 
11   * the Free Software Foundation; either version 2.1 of the License, or 
12   * (at your option) any later version.
13   *
14   * This library is distributed in the hope that it will be useful, but 
15   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
16   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
17   * License for more details.
18   *
19   * You should have received a copy of the GNU Lesser General Public
20   * License along with this library; if not, write to the Free Software
21   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
22   * USA.  
23   *
24   * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
25   * in the United States and other countries.]
26   *
27   * ---------------
28   * ExpressionFunctionFloor.java
29   * ---------------
30   * Author: Volker Berlin
31   * 
32   */
33  package smallsql.database;
34  
35  
36  class ExpressionFunctionFloor extends ExpressionFunctionReturnP1Number {
37  
38      int getFunction(){ return SQLTokenizer.FLOOR; }
39  
40  
41      double getDouble() throws Exception  {
42          return Math.floor( param1.getDouble() );
43      }
44      
45  
46      String   getString() throws Exception  {
47          Object   obj = getObject();
48          if(obj == null) return null;
49          return obj.toString();
50      }
51      
52  
53  }
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