blob: 6596d9cb1799e717c6cdc310c11645bda40362f2 (
plain) (
blame)
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
|
// Author: cirakg & claude ai
// Summary: Key-value persistence behind an interface: Application.Storage on the watch, a dictionary in tests.
//
// Everything the vault persists goes through a Backend, so unit tests can run
// against MemoryBackend (test/storage/) and simulate a full store, while the
// app uses AppStorageBackend. Values are the types Application.Storage
// accepts: numbers, strings, booleans, ByteArrays, arrays and dictionaries.
// Records are single ByteArrays, so their stored size is known exactly.
import Toybox.Application;
import Toybox.Lang;
module Persist {
// Base class; subclasses override all three methods.
class Backend {
function initialize() {
}
// The stored value, or null when the key is absent.
function getValue(key as String) as Application.Storage.ValueType {
return null;
}
// Store a value. Throws when the store is full (the vault turns that
// into VaultError FULL).
function setValue(key as String, value as Application.Storage.ValueType) as Void {
}
function deleteValue(key as String) as Void {
}
}
// The real store: Application.Storage, private to this app.
class AppStorageBackend extends Backend {
function initialize() {
Backend.initialize();
}
function getValue(key as String) as Application.Storage.ValueType {
return Application.Storage.getValue(key);
}
function setValue(key as String, value as Application.Storage.ValueType) as Void {
Application.Storage.setValue(key, value);
}
function deleteValue(key as String) as Void {
Application.Storage.deleteValue(key);
}
}
}
|
