org.nodal.util
Class TxnMonitorableUtil

java.lang.Object
  org.nodal.util.TxnMonitorableUtil

All Implemented Interfaces:

TxnHandler, TxnMonitorable

Direct Known Subclasses:

GetterUtil

public class TxnMonitorableUtil

extends java.lang.Object

implements TxnMonitorable, TxnHandler

A class for

Author:

leei

Field Summary

protected java.util.List

handlers

Constructor Summary

protected

TxnMonitorableUtil()

Method Summary

protected void	addNotifier() A method called when this class has TxnHandlers that need to be notified of a change.
void	addTxnHandler(TxnHandler handler) Add a TxnHandler to be invoked when this object changes.
void	notifyInsertAfter(NodeContent c, int index, java.lang.Object value)
void	notifyInsertBefore(NodeContent c, int index, java.lang.Object value)
void	notifyRemoveKey(NodeContent c, java.lang.Object key)
void	notifyRemoveRange(NodeContent c, int start, int end)
void	notifyReplaceRange(NodeContent c, int start, int end, java.lang.Object seq)
void	notifySetValue(NodeContent c, java.lang.Object property, java.lang.Object value)
protected void	removeNotifier() A method called when this class no longer has TxnHandlers that need to be notified of a change.
void	removeTxnHandler(TxnHandler handler) Remove a previously added TxnHandler.

Methods inherited from class java.lang.Object

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

Field Detail

handlers

protected java.util.List handlers

Constructor Detail

TxnMonitorableUtil

protected TxnMonitorableUtil()

Method Detail

addTxnHandler

public final void addTxnHandler(TxnHandler handler)

Description copied from interface: TxnMonitorable

Add a TxnHandler to be invoked when this object changes.

Specified by:

addTxnHandler in interface TxnMonitorable

Parameters:

handler - a TxnHandler whose notify methods will be invoked when this object changes.

removeTxnHandler

public final void removeTxnHandler(TxnHandler handler)

Description copied from interface: TxnMonitorable

Remove a previously added TxnHandler.

Specified by:

removeTxnHandler in interface TxnMonitorable

Parameters:

handler - a TxnHandler that has previously been added.

addNotifier

protected void addNotifier()

A method called when this class has TxnHandlers that need to be notified of a change. This method should be overridden by a subclass that needs to know when to include it as a possible target for notification.

removeNotifier

protected void removeNotifier()

A method called when this class no longer has TxnHandlers that need to be notified of a change. This method should be overridden by a subclass that needs to know when to no longer include it as a possible target for notification.

notifySetValue

public void notifySetValue(NodeContent c,
                           java.lang.Object property,
                           java.lang.Object value)

Specified by:

notifySetValue in interface TxnHandler

notifyInsertBefore

public void notifyInsertBefore(NodeContent c,
                               int index,
                               java.lang.Object value)

Specified by:

notifyInsertBefore in interface TxnHandler

notifyInsertAfter

public void notifyInsertAfter(NodeContent c,
                              int index,
                              java.lang.Object value)

Specified by:

notifyInsertAfter in interface TxnHandler

notifyRemoveKey

public void notifyRemoveKey(NodeContent c,
                            java.lang.Object key)

Specified by:

notifyRemoveKey in interface TxnHandler

notifyRemoveRange

public void notifyRemoveRange(NodeContent c,
                              int start,
                              int end)

Specified by:

notifyRemoveRange in interface TxnHandler

notifyReplaceRange

public void notifyReplaceRange(NodeContent c,
                               int start,
                               int end,
                               java.lang.Object seq)

Specified by:

notifyReplaceRange in interface TxnHandler