verinec.netsim.components.layers
Interface Subject

All Known Implementing Classes:

abstractNetworkLayer, ApplicationLayer, DataLinkLayer, NetworkLayer, PhysicalNetworkLayer, TransportLayer

public interface Subject

Subject is the Subject Interface for the Observer Designpattern. In this case it's the observed Object. This Object will be Observed by Upper- and Lower Observers.

Version:

$Revision: 47 $

Author:

Dominik Jungo

Method Summary

void	attachLower(Observer observer) Attaches a Observer to this Subject
void	attachUpper(Observer observer) Attaches a Observer to this Subject
void	detachLower() Detaches the lower Observer
void	detachUpper() Detaches the upper Observer
void	sendDown(Packet packet, double timeoffset, ILogger logger) Sends a Packet to the lower Layers(Observers).
void	sendUp(Packet packet, double timeoffset, ILogger logger) Sends a Packet to the upper Layers(Observers).

Method Detail

attachLower

void attachLower(Observer observer)

Attaches a Observer to this Subject

Parameters:

observer - The observing Object

detachLower

void detachLower()

Detaches the lower Observer

attachUpper

void attachUpper(Observer observer)

Attaches a Observer to this Subject

Parameters:

observer - The observing Object

detachUpper

void detachUpper()

Detaches the upper Observer

sendUp

void sendUp(Packet packet,
            double timeoffset,
            ILogger logger)

Sends a Packet to the upper Layers(Observers). This is equivalent to the Notify Method

Parameters:

packet - The Packet to be sent up

timeoffset - timeoffset added to now, when tje packet should arrive

logger - logger used to log all events caused by this event

sendDown

void sendDown(Packet packet,
              double timeoffset,
              ILogger logger)

Sends a Packet to the lower Layers(Observers). This is equivalent to the Notify Method

Parameters:

packet - The Packet to be sent down

timeoffset - timeoffset added to now, when tje packet should arrive

logger - logger used to log all events caused by this event