NSArrayController(Chapter 8 of Cocoa Programming for Mac OS X)

della0887

Person

1 #import "Person.h"
2
3
4 @implementation Person
5
6 - (id)init
7 {
8     [super init];
9     expectedRaise = 5.0;
10     personName = @"New Person";
11     return self;
12 }
13
14 - (void)dealloc
15 {
16     [personName release];
17     [super dealloc];
18 }
19
20 - (void)setNilValueForKey:(NSString *)key
21 {
22     if([key isEqual:@"expectedRaise"])
23     {
24         [self setExpectedRaise:0.0];
25     }
26     else
27     {
28         [super setNilValueForKey:key];
29     }
30
31 }
32
33 @synthesize personName;
34 @synthesize expectedRaise;
35 @end　　

MyDocument

1 //
2 //  MyDocument.m
3 //  RaiseMan
4 //
5 //  Created by b1mobile on 2/14/11.
6 //  Copyright 2011 __MyCompanyName__. All rights reserved.
7 //
8
9 #import "MyDocument.h"
10
11 @implementation MyDocument
12
13 - (id)init
14 {
15     self = [super init];
16     employees = [[NSMutableArray alloc] init];
17     return self;
18 }
19
20 - (void)dealloc
21 {
22     [super setEmployees:nil];
23     [super dealloc];
24 }
25
26 - (void)setEmployees:(NSMutableArray *)a
27 {
28     if(a == employees)
29     {
30         return;
31     }
32     
33     [a retain];
34     [employees release];
35     employees = a;
36 }
37
38 - (NSString *)windowNibName
39 {
40     // Override returning the nib file name of the document
41     // If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.
42     return @"MyDocument";
43 }
44
45 - (void)windowControllerDidLoadNib:(NSWindowController *) aController
46 {
47     [super windowControllerDidLoadNib:aController];
48     // Add any code here that needs to be executed once the windowController has loaded the document's window.
49 }
50
51 - (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
52 {
53     // Insert code here to write your document to data of the specified type. If the given outError != NULL, ensure that you set *outError when returning nil.
54
55     // You can also choose to override -fileWrapperOfType:error:, -writeToURL:ofType:error:, or -writeToURL:ofType:forSaveOperation:originalContentsURL:error: instead.
56
57     // For applications targeted for Panther or earlier systems, you should use the deprecated API -dataRepresentationOfType:. In this case you can also choose to override -fileWrapperRepresentationOfType: or -writeToFile:ofType: instead.
58
59     if ( outError != NULL ) {
60         *outError = [NSError errorWithDomain:NSOSStatusErrorDomain code:unimpErr userInfo:NULL];
61     }
62     return nil;
63 }
64
65 - (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError
66 {
67     // Insert code here to read your document from the given data of the specified type.  If the given outError != NULL, ensure that you set *outError when returning NO.
68
69     // You can also choose to override -readFromFileWrapper:ofType:error: or -readFromURL:ofType:error: instead.
70     
71     // For applications targeted for Panther or earlier systems, you should use the deprecated API -loadDataRepresentation:ofType. In this case you can also choose to override -readFromFile:ofType: or -loadFileWrapperRepresentation:ofType: instead.
72     
73     if ( outError != NULL ) {
74         *outError = [NSError errorWithDomain:NSOSStatusErrorDomain code:unimpErr userInfo:NULL];
75     }
76     return YES;
77 }
78
79 @end