StaticFactory

StaticFactory

Similar to the AbstractFactory , this pattern is used to create series of related or dependent objects. The difference between this and the AbstractFactory is that this pattern uses just one static method to create all types of objects it can create.

UML

Code

Vehicle.php

<?php

namespace Kuriv\PHPDesignPatterns\Creational\StaticFactory;

abstract class Vehicle
{
    //
}

Bus.php

<?php

namespace Kuriv\PHPDesignPatterns\Creational\StaticFactory;

class Bus extends Vehicle
{
    //
}

Car.php

<?php

namespace Kuriv\PHPDesignPatterns\Creational\StaticFactory;

class Car extends Vehicle
{
    //
}

StaticFactory.php

<?php

namespace Kuriv\PHPDesignPatterns\Creational\StaticFactory;

class StaticFactory
{
    /**
     * Create vehicle.
     *
     * @param  string $name
     * @return Vehicle
     */
    public static function createVehicle(string $name): Vehicle
    {
        if ($name == 'Bus') {
            return new Bus();
        }
        if ($name == 'Car') {
            return new Car();
        }
    }
}

Test

StaticFactoryTest.php

<?php

namespace Kuriv\PHPDesignPatterns\Creational\StaticFactory;

use PHPUnit\Framework\TestCase;

class StaticFactoryTest extends TestCase
{
    public function testCanCreateBus()
    {
        $bus = StaticFactory::createVehicle('Bus');
        $this->assertInstanceOf(Bus::class, $bus);
    }

    public function testCanCreateCar()
    {
        $car = StaticFactory::createVehicle('Car');
        $this->assertInstanceOf(Car::class, $car);
    }
}