4 Copyright (C) 2003-2005 SKYRIX Software AG
6 Author: Helge Hess (helge.hess@skyrix.com)
8 This file is part of the SQLite Adaptor Library
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Library General Public
12 License as published by the Free Software Foundation; either
13 version 2 of the License, or (at your option) any later version.
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Library General Public License for more details.
20 You should have received a copy of the GNU Library General Public
21 License along with this library; see the file COPYING.LIB.
22 If not, write to the Free Software Foundation,
23 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #include "SQLiteContext.h"
27 #include "SQLiteChannel.h"
30 @implementation SQLiteContext
32 - (void)channelDidInit:_channel {
33 if ([channels count] > 0) {
34 [NSException raise:@"TooManyOpenChannelsException"
35 format:@"SQLite3 only supports one channel per context"];
37 [super channelDidInit:_channel];
40 - (BOOL)primaryBeginTransaction {
43 result = [[[channels lastObject]
44 nonretainedObjectValue]
45 evaluateExpression:@"BEGIN TRANSACTION"];
50 - (BOOL)primaryCommitTransaction {
53 result = [[[channels lastObject]
54 nonretainedObjectValue]
55 evaluateExpression:@"COMMIT TRANSACTION"];
60 - (BOOL)primaryRollbackTransaction {
63 result = [[[channels lastObject]
64 nonretainedObjectValue]
65 evaluateExpression:@"ROLLBACK TRANSACTION"];
69 - (BOOL)canNestTransactions {
75 - (id)copyWithZone:(NSZone *)zone {
79 @end /* SQLiteContext */
81 void __link_SQLiteContext() {
82 // used to force linking of object file
83 __link_SQLiteContext();