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

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

All Implemented Interfaces:

Subject

public class NodeTableSubject
extends java.lang.Object
implements Subject

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

Version:

@VERSION@

Author:

Udo Thalmann

Field Summary

static int	INSERT
NodeEntryImplPeer	nodeEntryImplPeer
java.util.ArrayList	observers
int	opCode
static int	REMOVE

Constructor Summary

NodeTableSubject()

Method Summary

void	addEntry(NodeEntryImplPeer nodeEntryImplPeer) Calls notifyObservers() in order to add a new node entry to node 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(NodeEntryImplPeer nodeEntryImplPeer) Calls notifyObservers() in order to remove a node entry from node 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

nodeEntryImplPeer

public NodeEntryImplPeer nodeEntryImplPeer

observers

public java.util.ArrayList observers

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

NodeTableSubject

public NodeTableSubject()

Method Detail

addEntry

public void addEntry(NodeEntryImplPeer nodeEntryImplPeer)

Calls notifyObservers() in order to add a new node entry to node table.

Parameters:

NodeEntryImplPeer - node entry to be added.

removeEntry

public void removeEntry(NodeEntryImplPeer nodeEntryImplPeer)

Calls notifyObservers() in order to remove a node entry from node table.

Parameters:

NodeEntryImplPeer - node 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.