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 "SQLiteValues.h"
27 #include "SQLiteChannel.h"
28 #import <Foundation/NSData.h>
31 @implementation NSData(SQLiteValues)
33 - (id)initWithSQLiteInt:(int)_value {
34 return [self initWithBytes:&_value length:sizeof(int)];
36 - (id)initWithSQLiteDouble:(double)_value {
37 return [self initWithBytes:&_value length:sizeof(double)];
39 - (id)initWithSQLiteText:(const unsigned char *)_value {
40 return [self initWithBytes:_value length:strlen(_value)];
42 - (id)initWithSQLiteData:(const void *)_value length:(int)_length {
43 return [self initWithBytes:_value length:_length];
46 - (NSString *)stringValueForSQLite3Type:(NSString *)_type
47 attribute:(EOAttribute *)_attribute
50 // TODO: this method looks slow
51 static NSStringEncoding enc = 0;
56 if ((len = [self length]) == 0)
60 enc = [NSString defaultCStringEncoding];
61 NSLog(@"Note: SQLite adaptor using '%@' encoding for data=>string "
63 [NSString localizedNameOfStringEncoding:enc]);
66 str = [[NSString alloc] initWithData:self encoding:enc];
68 if (((len = [_type length]) == 0) || (len != 4 && len != 5 && len != 7))
69 return [str autorelease];
71 c1 = [_type characterAtIndex:0];
77 t = [_type lowercaseString];
78 if ([t hasPrefix:@"char"] ||
79 [t hasPrefix:@"varchar"] ||
80 [t hasPrefix:@"money"] ||
81 [t hasPrefix:@"text"]) {
82 t = [[str stringValueForSQLite3Type:_type
83 attribute:_attribute] retain];
85 return [t autorelease];
89 return [str autorelease];;
92 @end /* NSData(SQLiteValues) */