ChartAdapter.ignoreNotifications( false );
ChartAdapter.endIgnoreNotifications( );
	public void changeTask( Notification notification )	{		if ( previewPainter != null )		{			// Query and series change need to update Live Preview			if ( notification.getNotifier( ) instanceof Query					|| notification.getNotifier( ) instanceof Axis					|| notification.getNotifier( ) instanceof SeriesDefinition )			{				doLivePreview( );			}			else if ( ChartPreviewPainter.isLivePreviewActive( ) )			{				ChartAdapter.ignoreNotifications( true );				ChartUIUtil.syncRuntimeSeries( getChartModel( ) );				ChartAdapter.ignoreNotifications( false );				previewPainter.renderModel( getChartModel( ) );			}			else			{				previewPainter.renderModel( getChartModel( ) );			}		}	}