blob: 1d36bef31368aa41a16a44f660f9c4fdabfc6f3c (
plain)
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
|
package net.wotonomy.test;
import net.wotonomy.control.EOClassDescription;
import net.wotonomy.control.EODataSource;
import net.wotonomy.control.EOEditingContext;
import net.wotonomy.control.EOFetchSpecification;
import net.wotonomy.foundation.NSArray;
/**
* A custom DataSource that works with
* the datastore package for persistence.
*/
public class TestDataSource extends EODataSource
{
private EOEditingContext context;
private Object source;
private String key;
public TestDataSource()
{
this( Test.editingContext );
}
public TestDataSource( EOEditingContext aContext )
{
context = aContext;
}
public EOEditingContext editingContext()
{
return context;
}
/**
* This implementation does nothing.
*/
public void insertObject ( Object anObject )
{
// creates are handled by createObject().
}
/**
* Deletes the specified object from this data source.
*/
public void deleteObject ( Object anObject )
{
editingContext().deleteObject( anObject );
}
/**
* Returns a List containing the objects in this
* data source. This implementation returns all
* TestObjects that have been persisted to the
* datastore in the data directory.
*/
public NSArray fetchObjects ()
{
if ( source == null )
{
NSArray result = editingContext().objectsWithFetchSpecification(
new EOFetchSpecification() );
if ( result.size() > 0 )
{
result = new NSArray( result.objectAtIndex( 0 ) );
//result.add( result.objectAtIndex( 0 ) );
}
return result;
}
else
{
return new NSArray(
((TestObject)source).getChildList() );
}
}
/**
* Returns a data source that is capable of
* manipulating objects of the type returned by
* applying the specified key to objects
* vended by this data source.
* @see #qualifyWithRelationshipKey
*/
public EODataSource
dataSourceQualifiedByKey ( String aKey )
{
return new TestDataSource( editingContext() );
}
/**
* Restricts this data source to vend those
* objects that are associated with the specified
* key on the specified object.
*/
public void
qualifyWithRelationshipKey (
String aKey, Object anObject )
{
key = aKey;
source = anObject;
}
/**
* Returns the description of the class of the
* objects that is vended by this data source,
* or null if this cannot be determined.
* This implementation returns TestObject.
*/
public EOClassDescription
classDescriptionForObjects ()
{
return EOClassDescription.classDescriptionForClass(
TestObject.class );
}
}
|
