org.xmlBlaster.engine.admin.extern.snmp
Class ConnectionTableSubject

java.lang.Object
  org.xmlBlaster.engine.admin.extern.snmp.ConnectionTableSubject

All Implemented Interfaces:

Subject

public class ConnectionTableSubject
extends java.lang.Object
implements Subject

ConnectionTableSubject holds onto connection entries. The ConnectionTableSubject also allows Observers to add and remove themselves. In order to add or remove a connection entry notifyObservers() is called.

Version:

@VERSION@

Author:

Udo Thalmann

Field Summary

ConnectionEntryImplPeer	connectionEntryImplPeer
static int	INSERT
java.lang.Integer	nodeIndex
NodeTableObserver	nodeTableObserver
java.util.ArrayList	observers
int	opCode
static int	REMOVE

Constructor Summary

ConnectionTableSubject(NodeTableObserver nodeTableObserver)
Holds a reference to nodeTableObserver.

Method Summary

void	addEntry(java.lang.String nodeName, ConnectionEntryImplPeer connectionEntryImplPeer) Calls notifyObservers in order to add a new connection entry to connection table.
void	addObserver(Observer o) Adds an observer to observer list.
private void	notifyObservers() Calls update method for all observers in observer list.
void	removeEntry(java.lang.String nodeName, ConnectionEntryImplPeer connectionEntryImplPeer) Calls notifyObservers in order to remove a connection entry from connection table.
void	removeObserver(Observer o) Removes an observer from observer list.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

connectionEntryImplPeer

public ConnectionEntryImplPeer connectionEntryImplPeer

nodeTableObserver

public NodeTableObserver nodeTableObserver

observers

public java.util.ArrayList observers

nodeIndex

public java.lang.Integer nodeIndex

opCode

public int opCode

INSERT

public static final int INSERT

See Also:

Constant Field Values

REMOVE

public static final int REMOVE

See Also:

Constant Field Values

Constructor Detail

ConnectionTableSubject

public ConnectionTableSubject(NodeTableObserver nodeTableObserver)

Holds a reference to nodeTableObserver.

Parameters:

NodeTableObserver - provides access to nodeIndex.

Method Detail

addEntry

public void addEntry(java.lang.String nodeName,
                     ConnectionEntryImplPeer connectionEntryImplPeer)

Calls notifyObservers in order to add a new connection entry to connection table.

Parameters:

NodeName - node to wich connection entry belongs.

ConnectionEntryImplPeer - connection entry to be added.

removeEntry

public void removeEntry(java.lang.String nodeName,
                        ConnectionEntryImplPeer connectionEntryImplPeer)

Calls notifyObservers in order to remove a connection entry from connection table.

Parameters:

NodeName - node to wich connection entry belongs.

ConnectionEntryImplPeer - connection entry to be removed.

addObserver

public void addObserver(Observer o)

Adds an observer to observer list.

Specified by:

addObserver in interface Subject

Parameters:

Observer - implements observer update method.

removeObserver

public void removeObserver(Observer o)

Removes an observer from observer list.

Specified by:

removeObserver in interface Subject

Parameters:

Observer - implements observer update method.

notifyObservers

private void notifyObservers()

Calls update method for all observers in observer list.