Package com.google.web.bindery.requestfactory.shared

Class FanoutReceiver<T>

java.lang.Object

com.google.web.bindery.requestfactory.shared.Receiver<T>

com.google.web.bindery.requestfactory.shared.FanoutReceiver<T>

Type Parameters:

T - the type of data being received

public class FanoutReceiver<T>
extends Receiver<T>

A FanoutReceiver will forward its callbacks to zero or more other Receivers. Any exceptions thrown by the queued Receivers will be re-thrown as an UmbrellaException after all Receivers have been invoked.

Constructor Summary

Constructors

Constructor	Description
FanoutReceiver()

Method Summary

Modifier and Type	Method	Description
void	add(Receiver<? super T> receiver)	Register a receiver to be called by the fanout.
protected void	finish()	Called after all Receivers have been executed.
void	onConstraintViolation(Set<ConstraintViolation<?>> violations)	Called if an object sent to the server could not be validated.
void	onFailure(ServerFailure error)	Receives general failure notifications.
void	onSuccess(T response)	Called when a Request has been successfully executed on the server.
protected void	onUncaughtThrowable(Throwable t)	Subclasses may override this method to alter how the FanoutReceiver collects exceptions that escape from the queued Receivers.
void	onViolation(Set<Violation> errors)	Deprecated.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FanoutReceiver

public FanoutReceiver()

Method Details

add

public void add(Receiver<? super T> receiver)

Register a receiver to be called by the fanout.

Throws:

IllegalArgumentException - if receiver is null

onConstraintViolation

public void onConstraintViolation(Set<ConstraintViolation<?>> violations)

Description copied from class: Receiver

Called if an object sent to the server could not be validated. The default implementation calls Receiver.onViolation(Set), converting the ConstraintViolation objects to the deprecated Violation type.

Overrides:

onConstraintViolation in class Receiver<T>

Parameters:

violations - a Set of ConstraintViolation instances

onFailure

public void onFailure(ServerFailure error)

Description copied from class: Receiver

Receives general failure notifications. The default implementation looks at ServerFailure.isFatal(), and throws a runtime exception with the failure object's error message if it is true.

Overrides:

onFailure in class Receiver<T>

Parameters:

error - a ServerFailure instance

onSuccess

public void onSuccess(T response)

Description copied from class: Receiver

Called when a Request has been successfully executed on the server.

Specified by:

onSuccess in class Receiver<T>

Parameters:

response - a response of type V

onViolation

@Deprecated
public void onViolation(Set<Violation> errors)

Deprecated.

Description copied from class: Receiver

Called if an object sent to the server could not be validated. The default implementation calls Receiver.onFailure(ServerFailure) if errors is not empty.

Overrides:

onViolation in class Receiver<T>

Parameters:

errors - a Set of Violation instances

finish

protected void finish()

Called after all Receivers have been executed.

onUncaughtThrowable

protected void onUncaughtThrowable(Throwable t)

Subclasses may override this method to alter how the FanoutReceiver collects exceptions that escape from the queued Receivers.