DesignPatternsPHP/Prototype/Prototype.php at master · Ti-webdev/DesignPatternsPHP · GitHub

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<?php

namespace DesignPatterns;

/**

* Prototype pattern

* Purpose:

* to avoid the cost of creating objects the standard way (new Foo()) and instead create a prototype and clone it

* Examples:

* - Large amounts of data (e.g. create 1,000,000 rows in a database at once via a ORM)

abstract class BookPrototype

{

protected $_title;

protected $_category;

/**

* @abstract

* @return void

abstract public function __clone();

public function getTitle()

{

return $this->_title;

}

public function setTitle($title)

{

$this->_title = $title;

}

class FooBookPrototype extends BookPrototype

{

protected $_category = 'Foo';

public function __clone()

{

}

class BarBookPrototype extends BookPrototype

{

protected $_category = 'Bar';

public function __clone()

{

}

$fooPrototype = new FooBookPrototype();

$barPrototype = new BarBookPrototype();

// now lets say we need 10,000 books of foo and 5,000 of bar ...

for ($i = 0; $i < 10000; $i++) {

$book = clone $fooPrototype;

$book->setTitle('Foo Book No ' . $i);

}

DesignPatternsPHP/Prototype/Prototype.php at master · Ti-webdev/DesignPatternsPHP · GitHub

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