-- File:        SiUnit.cdl
-- Created:     Fri Dec  1 11:11:27 1995
-- Author:      EXPRESS->CDL V0.2 Translator
-- Copyright:   Matra-Datavision 1993


class SiUnit from StepBasic 

inherits NamedUnit from StepBasic 

uses

	SiPrefix from StepBasic, 
	SiUnitName from StepBasic, 
	DimensionalExponents from StepBasic, 
	Boolean from Standard
is

	Create returns mutable SiUnit;
	---Purpose: Returns a SiUnit


	Init (me : mutable;
	      aDimensions : mutable DimensionalExponents from StepBasic) is redefined;

	Init (me : mutable;
	      hasAprefix : Boolean from Standard;
	      aPrefix : SiPrefix from StepBasic;
	      aName : SiUnitName from StepBasic) is virtual;

	-- Specific Methods for Field Data Access --

	SetPrefix(me : mutable; aPrefix : SiPrefix);
	UnSetPrefix (me:mutable);
	Prefix (me) returns SiPrefix;
	HasPrefix (me) returns Boolean;
	SetName(me : mutable; aName : SiUnitName);
	Name (me) returns SiUnitName;
	SetDimensions(me : mutable; aDimensions : mutable DimensionalExponents) is redefined;
	Dimensions (me) returns mutable DimensionalExponents is redefined;

fields

	prefix : SiPrefix from StepBasic; -- an Enumeration   -- OPTIONAL can be NULL
	name : SiUnitName from StepBasic; -- an Enumeration
	hasPrefix : Boolean from Standard;

 -- 
 -- NB : field <dimensions> inherited from classe <named_unit> is redeclared.
 --      it shall appears in a physical file as a *.
 --

end SiUnit;