watcher

Documentation

Index

• type EntityWatcher
  • func NewEntityWatcher(caller base.APICaller, result params.EntityWatchResult) EntityWatcher
• type MachineStorageIdsWatcher
  • func NewFilesystemAttachmentsWatcher(caller base.APICaller, result params.MachineStorageIdsWatchResult) MachineStorageIdsWatcher
  • func NewVolumeAttachmentsWatcher(caller base.APICaller, result params.MachineStorageIdsWatchResult) MachineStorageIdsWatcher
• type NotifyWatcher
  • func NewNotifyWatcher(caller base.APICaller, result params.NotifyWatchResult) NotifyWatcher
• type RelationUnitsWatcher
  • func NewRelationUnitsWatcher(caller base.APICaller, result params.RelationUnitsWatchResult) RelationUnitsWatcher
• type StringsWatcher
  • func NewStringsWatcher(caller base.APICaller, result params.StringsWatchResult) StringsWatcher

Types

type EntityWatcher

type EntityWatcher interface {
	Changes() <-chan []string
	Stop() error
	Err() error
}

EntityWatcher will send events when something changes. The content for the changes is a list of tag strings.

func NewEntityWatcher

func NewEntityWatcher(caller base.APICaller, result params.EntityWatchResult) EntityWatcher

type MachineStorageIdsWatcher

type MachineStorageIdsWatcher interface {
	Changes() <-chan []params.MachineStorageId
	Stop() error
	Err() error
}

MachineStorageIdsWatcher will send events when the lifecycle states of machine/storage entities change. The content for the changes is a list of params.MachineStorageId.

func NewFilesystemAttachmentsWatcher

func NewFilesystemAttachmentsWatcher(caller base.APICaller, result params.MachineStorageIdsWatchResult) MachineStorageIdsWatcher

NewFilesystemAttachmentsWatcher returns a MachineStorageIdsWatcher which communicates with the FilesystemAttachmentsWatcher API facade to watch filesystem attachments.

func NewVolumeAttachmentsWatcher

func NewVolumeAttachmentsWatcher(caller base.APICaller, result params.MachineStorageIdsWatchResult) MachineStorageIdsWatcher

NewVolumeAttachmentsWatcher returns a MachineStorageIdsWatcher which communicates with the VolumeAttachmentsWatcher API facade to watch volume attachments.

type NotifyWatcher

type NotifyWatcher interface {
	Changes() <-chan struct{}
	Stop() error
	Err() error
}

NotifyWatcher will send events when something changes. It does not send content for those changes.

func NewNotifyWatcher

func NewNotifyWatcher(caller base.APICaller, result params.NotifyWatchResult) NotifyWatcher

If an API call returns a NotifyWatchResult, you can use this to turn it into a local Watcher.

type RelationUnitsWatcher

type RelationUnitsWatcher interface {
	Changes() <-chan multiwatcher.RelationUnitsChange
	Stop() error
	Err() error
}

RelationUnitsWatcher will send events when something changes. The content for the changes is a params.RelationUnitsChange struct.

func NewRelationUnitsWatcher

func NewRelationUnitsWatcher(caller base.APICaller, result params.RelationUnitsWatchResult) RelationUnitsWatcher

type StringsWatcher

type StringsWatcher interface {
	Changes() <-chan []string
	Stop() error
	Err() error
}

StringsWatcher will send events when something changes. The content for the changes is a list of strings.

func NewStringsWatcher

func NewStringsWatcher(caller base.APICaller, result params.StringsWatchResult) StringsWatcher