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corelinux::Subject Class Reference

Subject knows its Observer objects, communicates with its observers through event notification. More...

#include <Subject.hpp>

Inheritance diagram for corelinux::Subject::

List of all members.

Public Methods
	Subject (void)
	Default constructor.
	Subject (SubjectCref)
	Copy constructor. More...
virtual	~Subject (void)
	Virtual destructor.
SubjectRef	operator= (SubjectCref)
	Assignment operator.
bool	operator== (SubjectCref) const
	Equality operator.
bool	operator!= (SubjectCref) const
	In-Equality operator.
virtual void	addObserver (ObserverPtr, Event< Identifier > *)=0 throw ( NullPointerException )
	Add an observer for a specific event. More...
virtual void	removeObserver (ObserverPtr)=0 throw ( NullPointerException )
	Remove an observer from all event notifications. More...
virtual void	removeObserver (ObserverPtr, Event< Identifier > *)=0 throw ( NullPointerException )
	Remove an observer from specific event notifications. More...
virtual Iterator<ObserverPtr>*	createIterator (void)=0
	Create a iterator for all observers. More...
virtual Iterator<ObserverPtr>*	createIterator (Event< Identifier > *)=0 throw ( NullPointerException )
	Create a iterator for observers of this event. More...
virtual void	destroyIterator (Iterator< ObserverPtr > *)=0 throw ( NullPointerException )
	Deletes the iterator instance. More...
Protected Methods
virtual void	notifyObservers (Event< Identifier > *) throw ( NullPointerException )
	Performs the notification of observers for a specific event. More...
virtual void	notifyAllObservers (Event< Identifier > *) throw ( NullPointerException )
	Performs the notification of ALL observers for a with a specific event. More...

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Detailed Description

Subject knows its Observer objects, communicates with its observers through event notification.

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Constructor & Destructor Documentation

corelinux::Subject::Subject ( SubjectCref )

Copy constructor. Parameters: Subject   const referencee

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Member Function Documentation

void corelinux::Subject::addObserver ( ObserverPtr, Event< Identifier > * ) throw ( NullPointerException ) [pure virtual]

Add an observer for a specific event. Parameters: Event   the type of event interested in Exceptions: NullPointer   exception if event is null

Iterator< ObserverPtr > * corelinux::Subject::createIterator ( Event< Identifier > * ) throw ( NullPointerException ) [pure virtual]

Create a iterator for observers of this event. Parameters: Event   defines the event type predicate Returns: Iterator Exceptions: NullPointerException   if event null

Iterator< ObserverPtr > * corelinux::Subject::createIterator ( void ) [pure virtual]

Create a iterator for all observers. Returns: Iterator Reimplemented in SubjectObserver.

void corelinux::Subject::destroyIterator ( Iterator< ObserverPtr > * aIterator ) throw ( NullPointerException ) [pure virtual]

Deletes the iterator instance. Parameters: Iterator   Exceptions: NullPointerException   if iterator null Reimplemented in SubjectObserver.

void corelinux::Subject::notifyAllObservers ( Event< Identifier > * anEvent ) throw ( NullPointerException ) [protected, virtual]

Performs the notification of ALL observers for a with a specific event. Parameters: Event   key Exceptions: NullPointerException   if event is null

void corelinux::Subject::notifyObservers ( Event< Identifier > * anEvent ) throw ( NullPointerException ) [protected, virtual]

Performs the notification of observers for a specific event. Parameters: Event   key Exceptions: NullPointerException   if event is null

void corelinux::Subject::removeObserver ( ObserverPtr, Event< Identifier > * ) throw ( NullPointerException ) [pure virtual]

Remove an observer from specific event notifications. Parameters: Observer   to remove Exceptions: NullPointer   exception Observer or Event is null

void corelinux::Subject::removeObserver ( ObserverPtr aObserver ) throw ( NullPointerException ) [pure virtual]

Remove an observer from all event notifications. Parameters: Observer   to remove Exceptions: NullPointer   exception Observer is null Reimplemented in SubjectObserver.

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The documentation for this class was generated from the following files:

• Subject.hpp
• Subject.cpp

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This is the CoreLinux++ reference manual
Provided by The CoreLinux Consortium