com.itextpdf.kernel.events

Interface IEventDispatcher

All Known Implementing Classes:

EventDispatcher, PdfADocument, PdfDocument

public interface IEventDispatcher

Event dispatcher interface.

Method Summary

Modifier and Type	Method and Description
void	addEventHandler(String type, IEventHandler handler) Adds new event handler.
void	dispatchEvent(Event event) Dispatches an event.
void	dispatchEvent(Event event, boolean delayed) Dispatches a delayed event.
boolean	hasEventHandler(String type) Checks if event dispatcher as an event handler assigned for a certain event type.
void	removeAllHandlers() Remove all event handlers.
void	removeEventHandler(String type, IEventHandler handler) Removes event handler.

Method Detail

addEventHandler

void addEventHandler(String type,
                     IEventHandler handler)

Adds new event handler.

Parameters:

type - a type of event to be handled.

handler - event handler.

dispatchEvent

void dispatchEvent(Event event)

Dispatches an event.

Parameters:

event -

dispatchEvent

void dispatchEvent(Event event,
                   boolean delayed)

Dispatches a delayed event. Sometimes event cannot be handled immediately because event handler has not been set yet. In this case event is placed into event ques of dispatcher and is waiting until handler is assigned.

Parameters:

event -

delayed -

hasEventHandler

boolean hasEventHandler(String type)

Checks if event dispatcher as an event handler assigned for a certain event type.

Parameters:

type -

removeEventHandler

void removeEventHandler(String type,
                        IEventHandler handler)

Removes event handler.

Parameters:

type -

handler -

removeAllHandlers

void removeAllHandlers()

Remove all event handlers.