JCL Help:TJclBaseNotifier
JCL Help: TJclBaseNotifier Class
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IJclNotifier
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TJclBaseNotifier
Summary
Base implementation of IJclNotifier.
Pascal
public TJclBaseNotifier = class(TInterfacedObject, IJclNotifier);
Description
TJclBaseNotifier is a base implementation of IJclNotifier. It provides notification in a sequential order, using the same order in which listeners were registered.
Thread safetyIf the unit is compiled with the THREADSAFE define, all access to the notifier list is protected using a multi-read/exclusive-write synchronization object.
Sending notifications is seen as a read-only operation since the list is not modified.
Note that TJclBaseNotifier does not create threads when generating the notifications. Each listener is notified in a sequential manner, where each listener will have to wait for the previous listener to finish. A call to the IJclNotifier.Notify will thus not finish until all listeners have processed the notification.
NotesUsing this implementation does not imply TJclBaseListener or TJclBaseNotificationMessage have to be used; TJclBaseNotifier will handle any IJclListener and IJclNotificationMessage implementation.
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Marcel Bestebroer
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