PHP实现设计模式中的抽象工厂模式详解

<?php
/**
?* 抽象工厂模式 2010-05-28 sz
?* @author phppan.p#gmail.com?
?* @package design pattern
?*/
?
/**
?* 抽象工厂
?*/
interface AbstractFactory {
??? /**
???? * 创建等级结构为A的产品的工厂办法
???? */
??? public function createProductA();
?
???? /**
???? * 创建等级结构为B的产品的工厂办法
???? */
??? public function createProductB();
?
}
?
/**
?* 具体工厂1
?*/
class ConcreteFactory1 implements AbstractFactory{
?
??? public function createProductA() {
??????? return new ProductA1();
??? }
?
??? public function createProductB() {
??????? return new ProductB1();
??? }
}
?
?
/**
?* 具体工厂2
?*/
class ConcreteFactory2 implements AbstractFactory{
?
??? public function createProductA() {
??????? return new ProductA2();
??? }
?
??? public function createProductB() {
??????? return new ProductB2();
??? }
}
?
/**
?* 抽象产品A
?*/
interface AbstractProductA {
?
??? /**
???? * 取得产品名
???? */
??? public function getName();
}
?
/**
?* 抽象产品B
?*/
interface AbstractProductB {
?
??? /**
???? * 取得产品名
???? */
??? public function getName();
}
?
/**
?* 具体产品Ａ1
?*/
class ProductA1 implements AbstractProductA {
??? private $_name;
?
??? public function __construct() {
??????? $this->_name = 'product A1';
??? }
?
??? public function getName() {
??????? return $this->_name;
??? }
}
?
?
/**
?* 具体产品Ａ2
?*/
class ProductA2 implements AbstractProductA {
??? private $_name;
?
??? public function __construct() {
??????? $this->_name = 'product A2';
??? }
?
??? public function getName() {
??????? return $this->_name;
??? }
}
?
?
/**
?* 具体产品B1
?*/
class ProductB1 implements AbstractProductB {
??? private $_name;
?
??? public function __construct() {
??????? $this->_name = 'product B1';
??? }
?
??? public function getName() {
??????? return $this->_name;
??? }
}
?
/**
?* 具体产品B2
?*/
class ProductB2 implements AbstractProductB {
??? private $_name;
?
??? public function __construct() {
??????? $this->_name = 'product B2';
??? }
?
??? public function getName() {
??????? return $this->_name;
??? }
}
?
?
/**
?* 客户端
?*/
class Client {
?
???? /**
???? * Main program.
???? */
??? public static function main() {
??????? self::run(new ConcreteFactory1());
??????? self::run(new ConcreteFactory2());
??? }
?
??? /**
???? * 调用工厂实例生成产品,输出产品名
???? * @param?? $factory??? AbstractFactory???? 工厂实例
???? */
??? public static function run(AbstractFactory $factory) {
??????? $productA = $factory->createProductA();
??????? $productB = $factory->createProductB();
??????? echo $productA->getName(),'<br />';
??????? echo $productB->getName(),'<br />';
??? }
?
}
?
Client::main();
?>