NAME
corelinux::Subject - Subject knows its Observer objects, communicates with its observers through event notification.
SYNOPSIS
#include <Subject.hpp>
Inherited by SubjectObserver.
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.
Detailed Description
Subject knows its Observer objects, communicates with its observers through event notification.
Constructor & Destructor Documentation
corelinux::Subject::Subject (SubjectCref)
Copy constructor. Parameters:
Subject const referencee
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 .RE
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.
Author
Generated automatically by Doxygen for CoreLinux++ from the source code.