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SubjectObserver Class Reference

SubjectObserver maintains the observer list and definitions for subject. More...

#include <SubjectObserver.hpp>

Inheritance diagram for SubjectObserver

[legend]Collaboration diagram for SubjectObserver:

[legend]List of all members.

Public Methods
	SubjectObserver ( void )
	Default constructor.
virtual	~SubjectObserver ( void )
	Virtual destructor.
bool	operator= ( SubjectObserverCref ) const
	Equality operator.
virtual void	addObserver ( corelinux::ObserverPtr , corelinux::Event<corelinux::Identifier> * ) throw ( corelinux::NullPointerException )
	Add an observer for a specific event. More...
virtual void	removeObserver ( corelinux::ObserverPtr ) throw ( corelinux::NullPointerException )
	Remove an observer from all event notifications. More...
virtual void	removeObserver ( corelinux::ObserverPtr , corelinux::Event<corelinux::Identifier> * ) throw ( corelinux::NullPointerException )
	Remove an observer from specific event notifications. More...
virtual corelinux::Iterator< corelinux::ObserverPtr >*	createIterator ( void )
	Create a iterator for all observers. More...
virtual corelinux::Iterator< corelinux::ObserverPtr >*	createIterator ( corelinux::Event<corelinux::Identifier> * ) throw ( corelinux::NullPointerException )
	Create a iterator for observers of this event. More...
virtual void	destroyIterator ( corelinux::Iterator< corelinux::ObserverPtr > * ) throw ( corelinux::NullPointerException )
	Deletes the iterator instance. More...
Protected Methods
	SubjectObserver ( SubjectObserverCref ) throw ( corelinux::Assertion )
	Copy constructor.
SubjectObserverRef	operator= ( SubjectObserverCref ) throw ( corelinux::Assertion )
	Assignment operator.

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Detailed Description

SubjectObserver maintains the observer list and definitions for subject.

Because we have the need for all of our subjects to also be observers, this factors the behavior as well.

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Member Function Documentation

void SubjectObserver::addObserver ( ObserverPtr aObserver, Event< corelinux::Identifier >* forEvent ) throw ( corelinux::NullPointerException ) [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 >* SubjectObserver::createIterator ( Event< corelinux::Identifier >* anId ) throw ( corelinux::NullPointerException ) [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 >* SubjectObserver::createIterator ( void ) [virtual]

Create a iterator for all observers. Returns: Iterator Reimplemented from corelinux::Subject.

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

Deletes the iterator instance. Parameters: Iterator   Exceptions: NullPointerException   if iterator null Reimplemented from corelinux::Subject.

void SubjectObserver::removeObserver ( ObserverPtr aObserver, Event< corelinux::Identifier >* forEvent ) throw ( corelinux::NullPointerException ) [virtual]

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

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

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

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

• SubjectObserver.hpp
• SubjectObserver.cpp

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