IRowEventHandler eh = ( IRowEventHandler ) getInstance( rowHandle );
IRowEventHandler eh = getEventHandler( rowHandle, context );
	public static void handleOnPrepare( RowHandle rowHandle,			ExecutionContext context )	{		try		{			IRow row = new Row( rowHandle );			if ( handleJS( row, rowHandle.getOnPrepare( ), context ).didRun( ) )				return;			IRowEventHandler eh = ( IRowEventHandler ) getInstance( rowHandle );			if ( eh != null )				eh.onPrepare( row, context.getReportContext( ) );		} catch ( Exception e )		{			log.log( Level.WARNING, e.getMessage( ), e );		}	}