-
Notifications
You must be signed in to change notification settings - Fork 3
/
listing5.html
executable file
·379 lines (308 loc) · 14.6 KB
/
listing5.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
<!-- END META TAG INFO -->
<!-- BEGIN TITLE -->
<title>Core Data HTML Store - /Store/HTMLStore.m</title>
<!-- END TITLE -->
<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
</head>
<!-- BEGIN BODY OPEN -->
<body>
<!--END BODY OPEN -->
<!-- START CENTER OPEN -->
<center>
<!-- END CENTER OPEN -->
<!-- BEGIN LOGO AND SEARCH -->
<!--#include virtual="/includes/adcnavbar"-->
<!-- END LOGO AND SEARCH -->
<!-- START BREADCRUMB -->
<div id="breadcrumb">
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Cocoa/index.html">Cocoa</a> > <a href="../../samplecode/Cocoa/idxDataManagement-date.html">Data Management</a> > <A HREF="javascript:location.replace('index.html');">Core Data HTML Store</A> >
</td>
</tr>
<tr>
<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
</tr>
</table>
</div>
<!-- END BREADCRUMB -->
<!-- START MAIN CONTENT -->
<!-- START TITLE GRAPHIC AND INTRO-->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">Core Data HTML Store</div></h1></td>
</tr>
</table>
<!-- END TITLE GRAPHIC AND INTRO -->
<!-- START WIDE COLUMN -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td id="scdetails">
<h2>/Store/HTMLStore.m</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/Application/ApplicationDelegate.h</option>
<option value="listing2.html">/Application/ApplicationDelegate.m</option>
<option value="listing3.html">/Application/main.m</option>
<option value="listing4.html">/Store/HTMLStore.h</option>
<option value="listing5.html">/Store/HTMLStore.m</option>
<option value="listing6.html">/Store/HTMLStore_Internal.h</option>
<option value="listing7.html">/Store/HTMLStore_Internal.m</option>
<option value="listing8.html">/Store/HTMLStoreLoader.h</option>
<option value="listing9.html">/Store/HTMLStoreLoader.m</option>
<option value="listing10.html">/Testing/BasicHTMLStore.html</option>
<option value="listing11.html">/Testing/BasicStoreTesting.h</option>
<option value="listing12.html">/Testing/BasicStoreTesting.m</option>
<option value="listing13.html">/Testing/StoreTestingMain.h</option>
<option value="listing14.html">/Testing/StoreTestingMain.m</option></select>
</p>
</form>
<p><strong><a href="HTMLStore.zip">Download Sample</a></strong> (“HTMLStore.zip”, 148.2K)<BR>
<strong><a href="HTMLStore.dmg">Download Sample</a></strong> (“HTMLStore.dmg”, 205.3K)</p>
<!--
<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
-->
</td>
</tr>
<tr>
<td scope="row"><img width="680" height="10" src="images/1dot.gif" alt=""><br>
<img height="1" width="680" src="images/1dot_919699.gif" alt=""><br>
<img width="680" height="20" src="images/1dot.gif" alt=""></td>
</tr>
<tr>
<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">/*
File: HTMLStore.m
Abstract: The basic implementation of the store. Just the methods required
by NSAtomicStore and NSObjectStore. Most the methods here don't do too much
work, but they illustrate where to start when implementing your own atomic
store.
Disclaimer: IMPORTANT: This Apple software is supplied to you by
Apple Inc. ("Apple") in consideration of your agreement to the
following terms, and your use, installation, modification or
redistribution of this Apple software constitutes acceptance of these
terms. If you do not agree with these terms, please do not use,
install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and
subject to these terms, Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this original Apple software (the
"Apple Software"), to use, reproduce, modify and redistribute the Apple
Software, with or without modifications, in source and/or binary forms;
provided that if you redistribute the Apple Software in its entirety and
without modifications, you must retain this notice and the following
text and disclaimers in all such redistributions of the Apple Software.
Neither the name, trademarks, service marks or logos of Apple Inc.
may be used to endorse or promote products derived from the Apple
Software without specific prior written permission from Apple. Except
as expressly stated in this notice, no other rights or licenses, express
or implied, are granted by Apple herein, including but not limited to
any patent rights that may be infringed by your derivative works or by
other works in which the Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Copyright (C) 2007 Apple Inc. All Rights Reserved.
*/
#import "HTMLStore_Internal.h"
#import <Foundation/NSXMLDocument.h>
@implementation HTMLStore
- (id)initWithPersistentStoreCoordinator:(NSPersistentStoreCoordinator *)coordinator configurationName:(NSString *)configurationName URL:(NSURL *)url options:(NSDictionary *)options {
self = [super initWithPersistentStoreCoordinator:coordinator configurationName:configurationName URL:url options:options];
if (self != nil) {
pIdentifier = nil;
pRefDataToCacheNodeMap = nil;
NSInteger options = NSXMLNodePreserveCharacterReferences | NSXMLNodePreserveWhitespace;
NSError *error = nil;
pDocument = [[NSXMLDocument alloc] initWithContentsOfURL:url options:options error:&error];
if ((pDocument == nil) && ([[error domain] isEqualToString:NSURLErrorDomain]) && ([url isFileURL])) {
// maybe the file just doesn't exist, create it
NSInteger code = [error code];
if ((code == NSURLErrorCannotOpenFile) || (code == NSURLErrorZeroByteResource)) {
[[NSFileManager defaultManager] createFileAtPath:[url path] contents:nil attributes:nil];
pDocument = [[NSXMLDocument alloc] initWithKind:NSXMLDocumentXHTMLKind options:options];
}
}
if (pDocument != nil) {
[self loadMetadata];
} else {
[[NSException exceptionWithName:NSInvalidArgumentException reason:[NSString stringWithFormat:@"Could not open URL %@", url] userInfo:nil] raise];
}
}
return self;
}
- (void)dealloc {
[pDocument release];
[pRefDataToCacheNodeMap release];
[pIdentifier release];
[super dealloc];
}
- (NSString *)identifier {
if (pIdentifier == nil) {
uuid_t uuid;
uuid_generate(&uuid);
pIdentifier = [[NSString stringWithFormat:@"%08X-%04X-%04X-%04X-%012X", uuid, uuid, uuid, uuid, uuid] retain];
}
return pIdentifier;
}
- (void)setIdentifier:(NSString *)identifier {
if (pIdentifier != identifier) {
[pIdentifier release];
pIdentifier = [identifier retain];
}
}
- (NSString *)type {
return @"HTMLStore";
}
- (BOOL)load:(NSError **)error {
if (pDocument != nil) {
[self headElement]; // if this is a new document, ensures that the head element is created before the body element
NSXMLElement *body = [self bodyElement];
NSArray *tables = [body elementsForName:@"table"];
for (NSXMLElement *table in tables) {
[self loadTable:table];
}
}
return (pDocument != nil);
}
- (BOOL)save:(NSError **)error {
BOOL result = NO;
[self updateMetadata];
NSString *xmlString = [[pDocument rootElement] XMLString];
NSData *data = [NSData dataWithBytes:[xmlString cStringUsingEncoding:NSUTF8StringEncoding] length:[xmlString lengthOfBytesUsingEncoding:NSUTF8StringEncoding]];
if (data != nil) {
result = [data writeToURL:[self URL] atomically:YES];
}
return result;
}
// Called by PSC during save to create cache nodes for newly inserted objects
- (NSAtomicStoreCacheNode *)newCacheNodeForManagedObject:(NSManagedObject *)managedObject {
NSManagedObjectID *oid = [managedObject objectID];
id refData = [self referenceObjectForObjectID:oid];
// create the cache node
id item = [[NSAtomicStoreCacheNode alloc] initWithObjectID:oid];
// create a new row in the table
NSXMLElement *table = [self tableForEntity:[managedObject entity]];
NSXMLElement *newRow = [NSXMLElement elementWithName:@"tr"];
// give the table row an id
NSXMLNode *rowIDAttribute = [NSXMLNode attributeWithName:@"id" stringValue:refData];
[newRow addAttribute:rowIDAttribute];
// for each table header column, add a table data element
NSInteger index, columnCount = [[table childAtIndex:0] childCount];
for (index=0; index < columnCount; index++) {
[newRow addChild:[NSXMLElement elementWithName:@"td"]];
}
// finally add the new row
[table addChild:newRow];
// update the cache node's data
[self updateCacheNode:item fromManagedObject:managedObject];
return item;
}
// Called during save by the PSC to update the values of changed objects.
// Also called during save by self to set the values of newly insert objects
- (void)updateCacheNode:(NSAtomicStoreCacheNode *)node fromManagedObject:(NSManagedObject *)managedObject {
id refData = [self referenceObjectForObjectID:[managedObject objectID]];
NSXMLElement *row = [self rowWithRefData:refData inTable:nil];
if (row != nil) {
NSArray *headerNodes = [[[((NSXMLElement *)[row parent]) elementsForName:@"tr"] objectAtIndex:0] elementsForName:@"th"];
NSArray *columnNames = [headerNodes valueForKey:@"stringValue"];
[self updateAttributesInCacheNode:node andRow:row fromManagedObject:managedObject usingColumnNames:columnNames];
[self updateRelationshipsInCacheNode:node andRow:row fromManagedObject:managedObject usingColumnNames:columnNames];
}
}
// called when the PSC generates object IDs for our cachenodes
// This method MUST return a new unique primary key reference data for an instance of entity. This
// primary key value MUST be an id
- (id)newReferenceObjectForManagedObject:(NSManagedObject *)managedObject {
NSEntityDescription *entity = [managedObject entity];
id refData = nil;
NSXMLElement *table = [self tableForEntity:entity];
NSXMLElement *newRow = [self newRowForEntity:entity inTable:table];
refData = [[[newRow attributeForName:@"id"] stringValue] copy]; // refData is the value of the id attribute
[newRow release];
return refData;
}
- (void)willRemoveCacheNodes:(NSSet *)cacheNodes {
for (NSAtomicStoreCacheNode *node in cacheNodes) {
NSManagedObjectID *objectID = [node objectID];
NSEntityDescription *entity = [objectID entity];
NSXMLElement *table = [self tableForEntity:entity];
id rowToDelete = [self rowWithRefData:[self referenceObjectForObjectID:objectID] inTable:table];
[table removeChildAtIndex:[rowToDelete index]];
}
}
// Gives the store a chance to do any non-dealloc teardown (for example, closing a network connection)
// before removal. Default implementation just does nothing.
- (void)willRemoveFromPersistentStoreCoordinator:(NSPersistentStoreCoordinator *)coordinator {
[pDocument release];
pDocument = nil;
[super willRemoveFromPersistentStoreCoordinator:coordinator];
}
@end
</pre>
<!--googleoff: index -->
</td>
</tr>
</table>
<!-- END WIDE COLUMN -->
<!-- END MAIN CONTENT -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
</tr>
<tr>
<td align="center"><br/>
<table border="0" cellpadding="0" cellspacing="0" class="graybox">
<tr>
<th>Did this document help you?</th>
</tr>
<tr>
<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/HTMLStore/listing5.html%3Fid%3DDTS10004009-1.1&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/HTMLStore/listing5.html%3Fid%3DDTS10004009-1.1&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/HTMLStore/listing5.html%3Fid%3DDTS10004009-1.1&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- START BOTTOM APPLE NAVIGATION -->
<!--#include virtual="/includes/footer"-->
<!-- END BOTTOM APPLE NAVIGATION -->
<!-- START CENTER CLOSE -->
</center>
<!-- END CENTER CLOSE -->
</body>
</html>