设计模式之抽象工厂模式

有些情况下我们需要根据不同的选择逻辑提供不同的构造工厂，而对于多个工厂而言需要一个统一的抽象工厂
class System{}
class Soft{}

class MacSystem extends System{}
class MacSoft extends Soft{}

class WinSystem extends System{}
class WinSoft extends Soft{}

/**
 * AbstractFactory class[抽象工厂模式]
 */
interface AbstractFactory {
    public function CreateSystem();
    public function CreateSoft();
}

class MacFactory implements AbstractFactory{
    public function CreateSystem()
    {
        // TODO: Implement CreateSystem() method.
        return new MacSystem();
    }
    public function CreateSoft()
    {
        // TODO: Implement CreateSoft() method.
        return new MacSoft();
    }
}

有些情况下我们需要根据不同的选择逻辑提供不同的构造工厂，而对于多个工厂而言需要一个统一的抽象工厂
class System{}
class Soft{}

class MacSystem extends System{}
class MacSoft extends Soft{}

class WinSystem extends System{}
class WinSoft extends Soft{}

/**
 * AbstractFactory class[抽象工厂模式]
 */
interface AbstractFactory {
    public function CreateSystem();
    public function CreateSoft();
}

class MacFactory implements AbstractFactory{
    public function CreateSystem()
    {
        // TODO: Implement CreateSystem() method.
        return new MacSystem();
    }
    public function CreateSoft()
    {
        // TODO: Implement CreateSoft() method.
        return new MacSoft();
    }
}

class WinFactory implements AbstractFactory{
    public function CreateSystem()
    {
        // TODO: Implement CreateSystem() method.
        return new WinSystem();
    }

    public function CreateSoft()
    {
        // TODO: Implement CreateSoft() method.
        return new WinSoft();
    }
}

//test
$MacFactory_obj = new MacFactory();
var_dump($MacFactory_obj->CreateSystem());
var_dump($MacFactory_obj->CreateSoft());

$winFactory_obj = new WinFactory();
var_dump($winFactory_obj->CreateSystem());
var_dump($winFactory_obj->CreateSoft());

class WinFactory implements AbstractFactory{
    public function CreateSystem()
    {
        // TODO: Implement CreateSystem() method.
        return new WinSystem();
    }

    public function CreateSoft()
    {
        // TODO: Implement CreateSoft() method.
        return new WinSoft();
    }
}

//test
$MacFactory_obj = new MacFactory();
var_dump($MacFactory_obj->CreateSystem());
var_dump($MacFactory_obj->CreateSoft());

$winFactory_obj = new WinFactory();
var_dump($winFactory_obj->CreateSystem());
var_dump($winFactory_obj->CreateSoft());