events

Documentation

Overview

Package events defines common structures used for events dispatched from various other package.

Index

• type StatusUpdater
  • func (su *StatusUpdater) Update(status interface{})

Types

type StatusUpdater

type StatusUpdater struct {
	Status string

	// EventID is used to group the steps of a multi-part event.
	// It is set internally the first time Update() is called.
	EventID int64
}

StatusUpdater is a base struct for multi-part events with a status string that gets updated as the process progresses. StatusUpdater implements event.Updater, so if you embed a StatusUpdater into an event type, you can set a new status and dispatch that event in one call with DispatchUpdate.

For example:

type MyEvent struct {
  StatusUpdater
}
ev := &MyEvent{}
event.DispatchUpdate(ev, "new status")

func (*StatusUpdater) Update

func (su *StatusUpdater) Update(status interface{})

Update sets a new status and initializes the EventID if necessary. This implements event.Updater.Update().