01: /**
02: * com.mckoi.database.interpret.Compact 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 java.util.ArrayList;
26: import java.util.List;
27: import com.mckoi.database.*;
28:
29: /**
30: * Statement that handles COMPACT sql command.
31: *
32: * @author Tobias Downer
33: */
34:
35: public class Compact extends Statement {
36:
37: /**
38: * The name the table that we are to update.
39: */
40: String table_name;
41:
42: // ---------- Implemented from Statement ----------
43:
44: public void prepare() throws DatabaseException {
45: table_name = (String) cmd.getObject("table_name");
46: }
47:
48: public Table evaluate() throws DatabaseException {
49:
50: DatabaseQueryContext context = new DatabaseQueryContext(
51: database);
52:
53: // TableName tname =
54: // TableName.resolve(database.getCurrentSchema(), table_name);
55: TableName tname = resolveTableName(table_name, database);
56: // Does the table exist?
57: if (!database.tableExists(tname)) {
58: throw new DatabaseException("Table '" + tname
59: + "' does not exist.");
60: }
61:
62: // Does the user have privs to compact this tables?
63: if (!database.getDatabase().canUserCompactTableObject(context,
64: user, tname)) {
65: throw new UserAccessException(
66: "User not permitted to compact table: "
67: + table_name);
68: }
69:
70: // Compact the table,
71: database.compactTable(tname);
72:
73: // Return '0' if success.
74: return FunctionTable.resultTable(context, 0);
75:
76: }
77:
78: }
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