protected List<String> getOpenCommandSet(int direction)
	{
		final Integer dir=Integer.valueOf(direction);
		if(!directionCommandSets.containsKey(dir))
		{
			final Vector<String> V=new ReadOnlyVector<String>(CMParms.parse("OPEN "+CMLib.directions().getDirectionName(direction)));
			directionCommandSets.put(dir, V);
		}
		return directionCommandSets.get(dir);
	}