-- File:	PTopLoc_ItemLocation.cdl
-- Created:	Wed Mar  3 16:24:05 1993
-- Author:	Remi LEQUETTE
--		<rle@phobox>
---Copyright:	 Matra Datavision 1993


private class ItemLocation from PTopLoc inherits Persistent

	---Purpose: Provides  support  for  the implementation  of the
	--          class Location.

uses
    Datum3D  from PTopLoc,
    Location from PTopLoc

is
    Create(D : Datum3D from PTopLoc; 
    	   P : Integer from Standard;
	   N : Location from PTopLoc) 
    returns mutable ItemLocation from  PTopLoc;
	---Level: Internal 
    
    Datum3D(me) returns Datum3D from PTopLoc
    is static;
	---Level: Internal 

    Power(me)   returns Integer from Standard
    is static;
	---Level: Internal 
    
    Next(me)    returns Location from PTopLoc
    is static;
	---Level: Internal 
    
fields
    myDatum : Datum3D  from PTopLoc;
    myPower : Integer  from Standard;
    myNext  : Location from PTopLoc;

end ItemLocation;