01: /**
02: * com.mckoi.database.interpret.NoOp 14 Sep 2001
03: *
04: * Mckoi SQL Database ( http://www.mckoi.com/database )
05: * Copyright (C) 2000, 2001, 2002 Diehl and Associates, Inc.
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License
09: * Version 2 as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: * GNU General Public License Version 2 for more details.
15: *
16: * You should have received a copy of the GNU General Public License
17: * Version 2 along with this program; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19: *
20: * Change Log:
21: *
22: *
23: */package com.mckoi.database.interpret;
24:
25: import com.mckoi.database.*;
26: import java.util.ArrayList;
27: import java.util.List;
28:
29: /**
30: * A no operation statement.
31: *
32: * @author Tobias Downer
33: */
34:
35: public class NoOp extends Statement {
36:
37: // ---------- Implemented from Statement ----------
38:
39: public void prepare() throws DatabaseException {
40: // Nothing to prepare
41: }
42:
43: public Table evaluate() throws DatabaseException {
44: // No-op returns a result value of '0'
45: return FunctionTable.resultTable(new DatabaseQueryContext(
46: database), 0);
47: }
48:
49: }
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