observer

Documentation

Index

• type Observer
• type Publisher
  • func (p *Publisher) AddObserver(o Observer)
  • func (p *Publisher) NotifyObservers(s string)
  • func (p *Publisher) RemoveObserver(o Observer)

Types

type Observer

type Observer interface {
	Notify(string)
}

Observer interface declares the method to notify all subscribers

type Publisher

type Publisher struct {
	ObserversList []Observer
}

Publisher contains a list of observer to spread an message

func (*Publisher) AddObserver

func (p *Publisher) AddObserver(o Observer)

AddObserver adds an observer into ObserversList

func (*Publisher) NotifyObservers

func (p *Publisher) NotifyObservers(s string)

NotifyObservers notifies all observers about a message

func (*Publisher) RemoveObserver

func (p *Publisher) RemoveObserver(o Observer)

RemoveObserver removes an observer from ObserversList