libs-gdl2/EOAdaptors/SQLiteAdaptor/SQLite3Context.m
Matt Rice 2438352093 2008-03-16 Blake Nicholson <blaken@umich.edu>
* EOAdaptors/SQLiteAdaptor/SQLite3Context.m, 
        * EOAdaptors/SQLiteAdaptor/SQLite3Channel.m,
        * EOAdaptors/SQLiteAdaptor/SQLite3Adaptor.m,
        * EOControl/EOPrivate.m,
        * EOControl/EOAggregateEvent.m,
        * EOAccess/EOPrivate.m: Add missing include.
        * EOAccess/EOAdaptor.m: Only use NSProprietaryStringEncoding where
        available.
        * Tools/gsdoc-model.m: Remove unused variables.
        * Tools/Makefile.preamble: Fix NATIVE_LIB_DIRS path.

2008-03-16  Matt Rice  <ratmice@gmail.com

        * EOAccess/EOUtilities.m: Remove NSObjectNotAvailableException.
        Moved to base.
        * EOAccess/EODatabaseDataSource.m: Remove selector caching.




git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gdl2/trunk@26323 72102866-910b-0410-8b05-ffd578937521
2008-03-16 22:59:56 +00:00

127 lines
3.5 KiB
Objective-C

/*
SQLite3Context.m
Copyright (C) 2006 Free Software Foundation, Inc.
Author: Matt Rice <ratmice@gmail.com>
Date: 2006
This file is part of the GNUstep Database Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <GNUstepBase/GNUstep.h>
#include "SQLite3Adaptor.h"
#include "SQLite3Context.h"
#include "SQLite3Channel.h"
@implementation SQLite3Context
- (EOAdaptorChannel *)createAdaptorChannel
{
return AUTORELEASE([[SQLite3Channel alloc] initWithAdaptorContext:self]);
}
- (void)beginTransaction
{
int i, c;
NSAssert(![self transactionNestingLevel], @"nested transactions unsupported");
NSAssert([self hasOpenChannels], @"no open channels");
NSAssert(![self hasBusyChannels], @"busy channels during commit.");
if (_delegateRespondsTo.shouldBegin)
{
NSAssert([_delegate adaptorContextShouldBegin: self],
@"delegate refuses");
}
for (i = 0, c = [_channels count]; i < c; i++)
{
id channel = [[_channels objectAtIndex:i] nonretainedObjectValue];
if ([channel isOpen])
{
[channel evaluateExpression:
[EOSQLExpression expressionForString:@"BEGIN TRANSACTION"]];
break;
}
}
[self transactionDidBegin];
if (_delegateRespondsTo.didBegin)
[_delegate adaptorContextDidBegin: self];
}
- (void) commitTransaction
{
int i, c;
NSAssert([self hasOpenTransaction], @"No open transactions to commit");
NSAssert(![self hasBusyChannels], @"busy channels during commit");
if (_delegateRespondsTo.shouldCommit)
NSAssert([_delegate adaptorContextShouldCommit:self], @"delegate refuses to commit");
for (i = 0, c = [_channels count]; i < c; i++)
{
id channel = [[_channels objectAtIndex:i] nonretainedObjectValue];
if ([channel isOpen])
{
[channel evaluateExpression:
[EOSQLExpression expressionForString:@"COMMIT TRANSACTION"]];
break;
}
}
[self transactionDidCommit];
if (_delegateRespondsTo.didCommit)
[_delegate adaptorContextDidCommit: self];
}
- (void) rollbackTransaction
{
int i, c;
NSAssert([self hasOpenTransaction], @"No open transactions to rollback");
NSAssert(![self hasBusyChannels], @"busy channels during rollback");
if (_delegateRespondsTo.shouldRollback)
NSAssert([_delegate adaptorContextShouldRollback:self], @"delegate refuses to rollback");
for (i = 0, c = [_channels count]; i < c; i++)
{
id channel = [[_channels objectAtIndex:i] nonretainedObjectValue];
if ([channel isOpen])
{
[channel evaluateExpression:
[EOSQLExpression expressionForString:@"ROLLBACK TRANSACTION"]];
break;
}
}
[self transactionDidCommit];
if (_delegateRespondsTo.didRollback)
[_delegate adaptorContextDidRollback: self];
}
@end