Factory-pattern

//总结：
//1.抛开oo的思想，尤其是继承 ，不要刻意套 java C#的套路，使用go的方式去解决问题
//2.

package main

import (
	"fmt"
)

//订单表
type Order struct {
	Id    float64
	Title string
	Type  int
}

//工厂抽象方法
type OrderBase interface {
	CreateOrder(o *Order) Order
}

//工厂产生具体实例
type Orderfactory interface {
	createEntity() OrderBase
}

/////////////////////// 国内机票///////////////////////////////////////////////
type InlandOrder struct {
}
type InlandOrderFactory struct {
}

func (a *InlandOrderFactory) createEntity() (entity OrderBase) {
	entity = new(InlandOrder)
	return
}

func (inOrder *InlandOrder) CreateOrder(o *Order) Order {
	//todo 存储db
	return *o
}

/////////////////////// 国际机票///////////////////////////////////////////////
type OutLandOrder struct {
}
type OutLandOrderFactory struct {
}

func (s *OutLandOrderFactory) createEntity() (entity OrderBase) {
	entity = new(OutLandOrder)
	return
}

func (outOrder *OutLandOrder) CreateOrder(o *Order) Order {

	//todo 存储db
	return *o
}

func main() {
	defer func() {
		if err := recover(); err != nil {
			fmt.Println("sorry...")
			fmt.Println(err)
		}
	}()

	//国内机票
	infac := new(InlandOrderFactory)
	inOrderEntity := infac.createEntity()
	inOrder := Order{Id: 1, Title: "国内机票", Type: 1}
	fmt.Println(inOrderEntity.CreateOrder(&inOrder))

	//国际机票
	outfac := new(OutLandOrderFactory)
	outOrderEntity := outfac.createEntity()
	outOrder := Order{Id: 2, Title: "国际机票", Type: 2}
	fmt.Println(outOrderEntity.CreateOrder(&outOrder))
}