com.netflix.priam.notification

Interface EventGenerator<T>

All Known Implementing Classes:

AbstractFileSystem, GoogleEncryptedFileSystem, S3EncryptedFileSystem, S3FileSystem, S3FileSystemBase

public interface EventGenerator<T>

Generic interface which an event generator class should implement so all the observers could be notified of the events. Any class interested in state change for the event can subscribe by registering themselves. Created by aagrawal on 8/11/17.

Method Summary

Modifier and Type	Method and Description
void	addObserver(EventObserver<T> observer) Subscribes observer to receive generated events.
void	notifyEventFailure(T event) Notify all the observers of an event failure who subscribed to receive events.
void	notifyEventStart(T event) Notify all the observers of an event start who subscribed to receive events.
void	notifyEventStop(T event) Notify all the observers of an event stop who subscribed to receive events.
void	notifyEventSuccess(T event) Notify all the observers of an event success who subscribed to receive events.
void	removeObserver(EventObserver<T> observer) Removes observer from receiving any further events from this generator.

Method Detail

addObserver

void addObserver(EventObserver<T> observer)

Subscribes observer to receive generated events.

Parameters:

observer - EventObserver interested in receiving updates from this event generator. May not be null.

removeObserver

void removeObserver(EventObserver<T> observer)

Removes observer from receiving any further events from this generator.

Parameters:

observer - EventObserver that is to stop receiving updates from this event generator. May not be null.

notifyEventStart

void notifyEventStart(T event)

Notify all the observers of an event start who subscribed to receive events.

Parameters:

event - Generated event from the generator

notifyEventSuccess

void notifyEventSuccess(T event)

Notify all the observers of an event success who subscribed to receive events.

Parameters:

event - Event which was successful from the generator.

notifyEventFailure

void notifyEventFailure(T event)

Notify all the observers of an event failure who subscribed to receive events.

Parameters:

event - Event which was failure from the generator.

notifyEventStop

void notifyEventStop(T event)

Notify all the observers of an event stop who subscribed to receive events.

Parameters:

event - Event which was stopped from the generator.