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 Member Functions
	Subject (void)
	Default constructor.
	Subject (SubjectCref)
	Copy constructor.
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.
virtual void	removeObserver (ObserverPtr)=0 throw ( NullPointerException )
	Remove an observer from all event notifications.
virtual void	removeObserver (ObserverPtr, Event< Identifier > *)=0 throw ( NullPointerException )
	Remove an observer from specific event notifications.
virtual Iterator< ObserverPtr > *	createIterator (void)=0
	Create a iterator for all observers.
virtual Iterator< ObserverPtr > *	createIterator (Event< Identifier > *)=0 throw ( NullPointerException )
	Create a iterator for observers of this event.
virtual void	destroyIterator (Iterator< ObserverPtr > *)=0 throw ( NullPointerException )
	Deletes the iterator instance.
Protected Member Functions
virtual void	notifyObservers (Event< Identifier > *) throw ( NullPointerException )
	Performs the notification of observers for a specific event.
virtual void	notifyAllObservers (Event< Identifier > *) throw ( NullPointerException )
	Performs the notification of ALL observers for a with a specific event.

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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

virtual 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

virtual 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

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

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

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

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

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

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

virtual 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

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

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