example

Documentation

Index

• type ConcreteObserver
  • func (o *ConcreteObserver) Update(event Event)
• type Event
• type Observer
  • func NewObserver(name string) Observer
• type Subject
  • func (e *Subject) NotifyObservers(event Event)
  • func (e *Subject) Register(obs Observer)
  • func (e *Subject) Unregister(obs Observer)

Types

type ConcreteObserver

type ConcreteObserver struct {
	// contains filtered or unexported fields
}

具体观察者

func (*ConcreteObserver) Update

func (o *ConcreteObserver) Update(event Event)

具体观察者的方法

type Event

type Event struct {
	Id string
}

要观察和通知的事件

type Observer

type Observer interface {
	Update(event Event)
}

观察者接口

func NewObserver

func NewObserver(name string) Observer

创建一个新的具体观察者对象

type Subject

type Subject struct {
	ObserverCollection []Observer
}

抽象主题

func (*Subject) NotifyObservers

func (e *Subject) NotifyObservers(event Event)

通知所有具体观察者集合

func (*Subject) Register

func (e *Subject) Register(obs Observer)

注册一个新的具体观察者

func (*Subject) Unregister

func (e *Subject) Unregister(obs Observer)

取消注册具体观察者