solid-php/solid_04_isp_original.php at master · elizarp/solid-php · GitHub

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
<?php
/*

ISP	The Interface Segregation Principle
Make fine grained interfaces that are client specific.

*/
interface Birds
{
    public function setLocation($longitude, $latitude);
    public function setAltitude($altitude);
    public function renderize();
}

class Parrot implements Birds
{
    public function setLocation($longitude, $latitude)
    {
        //Do something
    }

    public function setAltitude($altitude)
    {
        //Do something
    }

    public function renderize()
    {
        //Do something
    }
}

class Penguin implements Birds
{
    public function setLocalizacao($longitude, $latitude)
    {
        //Do something
    }

    // The Birds Interface is forcing the Penguin Class to implement this method.
    // This violates the ISP principle
    public function setAltitude($altitude)
    {
        //Do nothing ... Penguins are birds that don't fly!
    }

    public function renderize()
    {
        //Do something
    }
}