indexing
	description: "Eiffel Vision item id. Mswindows implementation."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

deferred class
	EV_ID_IMP

feature {NONE} -- Initialization

	make_id is
			-- Generate new ID and assign it to `id'.
		do
			id := counter.item
			counter.set_item (id + 1)
		end

feature -- Access

	id: INTEGER
			-- Unique identifier within system.

feature {NONE} -- Implementation

	counter: INTEGER_REF is
			-- Counter to set unique id's to items.
		once
			create Result
			Result.set_item (1)
		end

invariant
	make_called: id > 0

end -- class EV_ID_IMP

--|----------------------------------------------------------------
--| EiffelVision2: library of reusable components for ISE Eiffel.
--| Copyright (C) 1985-2004 Eiffel Software. All rights reserved.
--| Duplication and distribution prohibited.  May be used only with
--| ISE Eiffel, under terms of user license.
--| Contact Eiffel Software for any other use.
--|
--| Interactive Software Engineering Inc.
--| dba Eiffel Software
--| 356 Storke Road, Goleta, CA 93117 USA
--| Telephone 805-685-1006, Fax 805-685-6869
--| Contact us at: http://www.eiffel.com/general/email.html
--| Customer support: http://support.eiffel.com
--| For latest info on our award winning products, visit:
--|	http://www.eiffel.com
--|----------------------------------------------------------------