Adapter Pattern

Adapter Pattern

※ 情境 : 當你希望使用某個類， 但是其介面與其他程式碼不相容時， 可以使用轉接器類。

Interface

type Charger interface {
	TypecCharge()
}

Client

type User struct {
}

func (u *User) UseTypecCharge(charger Charger) {
	fmt.Println("The user uses TypeC cable to charge.")
	charger.TypecCharge()
}

Situation

type Android struct {
}

func (a *Android) TypecCharge() {
	fmt.Println("Charging with TypeC.")
}

type Iphone struct {
}

func (i *Iphone) LightningCharge() {
	fmt.Println("Charging with Lightning.")
}

Adapter

type AppleAdapter struct {
	Device *Iphone
}

func (adapter *AppleAdapter) TypecCharge() {
	fmt.Println("Adapter converts Lightning to TypeC.")
	adapter.Device.LightningCharge()
}

Test

package test

import (
	"DesignPatterns/AdapterPattern"
	"testing"
)

func TestAdapterPattern(t *testing.T) {
	user := &AdapterPattern.User{}

	dadsPhone := &AdapterPattern.Android{}
	user.UseTypecCharge(dadsPhone)

	myPhone := &AdapterPattern.Iphone{}
	appleDeviceAdapter := &AdapterPattern.AppleAdapter{
		Device: myPhone,
	}
	user.UseTypecCharge(appleDeviceAdapter)
}