seda.sandStorm.lib.aDisk
Class AFileTPEventHandler

java.lang.Object
  |
  +--seda.sandStorm.lib.aDisk.AFileTPEventHandler

All Implemented Interfaces:

EventHandlerIF

class AFileTPEventHandler

extends java.lang.Object

implements EventHandlerIF

The event handler used by the AFileTPImpl stage.

Author:

Matt Welsh

Field Summary

protected SinkIF

eventQ

Constructor Summary

(package private)

AFileTPEventHandler()

Method Summary

void	destroy() Called when an event handler is destroyed.
void	handleEvent(QueueElementIF qel) Handle the event corresponding to the given QueueElementIF.
void	handleEvents(QueueElementIF[] qelarr) Handle the events corresponding to the given QueueElementIF array.
void	init(ConfigDataIF config) Called when an event handler is initialized.

Methods inherited from class java.lang.Object

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

Field Detail

eventQ

protected SinkIF eventQ

Constructor Detail

AFileTPEventHandler

AFileTPEventHandler()

Method Detail

init

public void init(ConfigDataIF config)

Description copied from interface: EventHandlerIF

Called when an event handler is initialized. This method should perform any initialization operations as required by the application.

Specified by:

init in interface EventHandlerIF

Following copied from interface: seda.sandStorm.api.EventHandlerIF

Parameters:

config - The set of configuration parameters for the stage.

Throws:

java.lang.Exception - The EventHandler can indicate an error to the runtime during initialization by throwing an Exception.

destroy

public void destroy()

Description copied from interface: EventHandlerIF

Called when an event handler is destroyed. This method should perform any cleanup or shutdown operations as required by the application before the event handler is removed from the system.

Specified by:

destroy in interface EventHandlerIF

Following copied from interface: seda.sandStorm.api.EventHandlerIF

Throws:

java.lang.Exception - The EventHandler can indicate an error to the runtime during shutdown by throwing an Exception.

handleEvent

public void handleEvent(QueueElementIF qel)

Description copied from interface: EventHandlerIF

Handle the event corresponding to the given QueueElementIF. This method is invoked by the system when a single event is pending for the event handler.

Specified by:

handleEvent in interface EventHandlerIF

Following copied from interface: seda.sandStorm.api.EventHandlerIF

Throws:

EventHandlerException - The application may throw an exception to indicate an error condition during event processing.

handleEvents

public void handleEvents(QueueElementIF[] qelarr)

Description copied from interface: EventHandlerIF

Handle the events corresponding to the given QueueElementIF array. This method is invoked when multiple events are pending for the event handler. The application may reorder, filter, or drop these events if it wishes to do so.

Specified by:

handleEvents in interface EventHandlerIF

Following copied from interface: seda.sandStorm.api.EventHandlerIF

Throws:

EventHandlerException - The application may throw an exception to indicate an error condition during event processing.