com.groiss.event

Interface IEventHandler

All Known Implementing Classes:

EventHandler, ExceptionHandlingCompletedHandler

public interface IEventHandler

Interface for event handler.

Method Summary

Modifier and Type	Method and Description
boolean	handle(Event e, ProcessInstance handlerProc, EventRegistry reg) The handle method is called when an event is raised and a handler has been registered.
boolean	onRegister(ProcessInstance handlerProc) This method is called before the handler is actually registered
void	onUnregister(EventRegistry reg) This method is called when the handler is unregistered.

Method Detail

handle

boolean handle(Event e,
               ProcessInstance handlerProc,
               EventRegistry reg)

The handle method is called when an event is raised and a handler has been registered. The return value is used only in "sync" event handlers, where returning true immediatly finishs the activity and ungegisters the handler.

Parameters:

e - the raised event

handlerProc - the process instance which has registered for the event.

reg - the event registry entry

Returns:

this implementation returns true

onRegister

boolean onRegister(ProcessInstance handlerProc)

This method is called before the handler is actually registered

Parameters:

handlerProc - the process instance which is registering

Returns:

if true is returned the handler will be registered, if false is returned, the handler will not be registered (in this case a sync terminates immediately)

onUnregister

void onUnregister(EventRegistry reg)

This method is called when the handler is unregistered.

Parameters:

reg -