rsb.patterns

Interface Callback

All Known Implementing Classes:

DataCallback, EventCallback

public interface Callback

A Callback implements the functionality of a single method of a LocalServer. Clients usually should not implement this interface directly. Instead use one of the specialized implementing classes like DataCallback or EventCallback.

Author:

jwienke

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Callback.UserCodeException Exception to be thrown by callbacks to indicate an error while processing the user code.

Method Summary

Methods

Modifier and Type	Method and Description
Event	internalInvoke(Event request) Method to invoke the Callback's functionality.

Method Detail

internalInvoke

Event internalInvoke(Event request)
                     throws Callback.UserCodeException

Method to invoke the Callback's functionality. This method can be considered an internal implementation detail.

Parameters:

request - the request received from a RemoteServer method call

Returns:

an event with the result data of a method

Throws:

Callback.UserCodeException - any exception in the user code invoked by the callback