Singleton::__sleep() - Code Metrics - Inspection of "Avoid to serialize/deserialize Singleton classes I..." - byjg/SingletonPatternPHP - Measure and Improve Code Quality continuously with Scrutinizer

Completed

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by Joao

created 2018-06-05 11:31 UTC

Singleton::__sleep() A

↳ Parent: Singleton

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	4
rs	10
cc	1
eloc	2
nc	1
nop	0

<?php

namespace ByJG\DesignPattern;

trait Singleton
{
    protected function __construct()
    {
    }

    /**
     * @throws SingletonException
     */
    final public function __clone()
    {
        throw new SingletonException('You can not clone a singleton.');
    }

    /**
     * @throws SingletonException
     */
    final public function __sleep()
    {
        throw new SingletonException('You can not serialize a singleton.');
    }

    /**
     * @throws SingletonException
     */
    final public function __wakeup()
    {
        throw new SingletonException('You can not deserialize a singleton.');
    }

    /**
     * @return static
     */
    public static function getInstance()
    {
        static $instances;

        $calledClass = get_called_class();

        if (!isset($instances[$calledClass])) {
            $instances[$calledClass] = new $calledClass();
        }
        return $instances[$calledClass];
    }

}


1			<?php
2
3			namespace ByJG\DesignPattern;
4
5			trait Singleton
6			{
7			protected function __construct()
8			{
9			}
10
11			/**
12			* @throws SingletonException
13			*/
14			final public function __clone()
15			{
16			throw new SingletonException('You can not clone a singleton.');
17			}
18
19			/**
20			* @throws SingletonException
21			*/
22			final public function __sleep()
23			{
24			throw new SingletonException('You can not serialize a singleton.');
25			}
26
27			/**
28			* @throws SingletonException
29			*/
30			final public function __wakeup()
31			{
32			throw new SingletonException('You can not deserialize a singleton.');
33			}
34
35			/**
36			* @return static
37			*/
38			public static function getInstance()
39			{
40			static $instances;
41
42			$calledClass = get_called_class();
43
44			if (!isset($instances[$calledClass])) {
45			$instances[$calledClass] = new $calledClass();
46			}
47			return $instances[$calledClass];
48			}
49
50			}
51

byjg / SingletonPatternPHP

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Singleton::__sleep() A

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