-
Notifications
You must be signed in to change notification settings - Fork 27
/
Variable.php
72 lines (60 loc) · 1.18 KB
/
Variable.php
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
<?php
namespace Moserware\Skills\FactorGraphs;
class Variable
{
private $_name;
private $_prior;
private $_value;
public function __construct($name, &$prior)
{
$this->_name = "Variable[" . $name . "]";
$this->_prior = $prior;
$this->resetToPrior();
}
public function &getValue()
{
$value = &$this->_value;
return $value;
}
public function setValue(&$value)
{
$this->_value = $value;
}
public function resetToPrior()
{
$this->_value = $this->_prior;
}
public function __toString()
{
return $this->_name;
}
}
class DefaultVariable extends Variable
{
public function __construct()
{
parent::__construct("Default", null);
}
public function &getValue()
{
return null;
}
public function setValue(&$value)
{
throw new Exception();
}
}
class KeyedVariable extends Variable
{
private $_key;
public function __construct($key, $name, &$prior)
{
parent::__construct($name, $prior);
$this->_key = $key;
}
public function getKey()
{
return $this->_key;
}
}
?>