protected List getCellsInSlot( SlotHandle handle, int columnIndex )
protected List getCellsInSlot( SlotHandle handle, int columnIndex, boolean mustBeStartPosition )
	protected List getCellsInSlot( SlotHandle handle, int columnIndex )	{		List retValue = new ArrayList( );		for ( int i = 0; i < handle.getCount( ); i++ )		{			RowHandle row = (RowHandle) handle.get( i );			CellHandle cell = getCellsInRow( row, columnIndex );			if ( cell != null )				retValue.add( cell );		}		return retValue;	}