note
	description: "Objects that is a model vor an inheritance link."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	author: ""
	date: "$Date$"
	revision: "$Revision$"

class
	EM_INHERITANCE_LINK

inherit
	EG_LINK
		rename
			source as descendant,
			target as ancestor
		redefine
			default_create
		end

feature {NONE} -- Initialization

	default_create
			-- Create an EIFFEL_INHERITANCE_LINK.
		do
			Precursor {EG_LINK}
			create is_non_conforming_changed
		end

	make_with_classes (a_descendant, an_ancestor: like descendant)
			-- Create an EIFFEL_INHERITANCE_LINK connecting `a_descendant' with `an_ancestor'.
		require
			a_descendant_not_void: a_descendant /= Void
			an_ancestor_not_void: an_ancestor /= Void
		do
			make_directed_with_source_and_target (a_descendant, an_ancestor)
		ensure
			set: descendant = a_descendant and ancestor = an_ancestor
		end

feature -- Status report

	is_non_conforming: BOOLEAN
			-- Is `Current' an non-conforming inheritance link?.

	is_non_conforming_changed: EV_NOTIFY_ACTION_SEQUENCE
			-- Called when `is_non_conforming is changed.

feature -- Status settings

	set_is_non_conforming (b: BOOLEAN)
			-- Set `is_non_conforming' to `b'.
		do
			if b /= is_non_conforming then
				is_non_conforming := b
				is_non_conforming_changed.call (Void)
			end
		ensure
			set: is_non_conforming = b
		end

invariant
	is_non_conforming_changed_not_void: is_non_conforming_changed /= Void


note
	copyright:	"Copyright (c) 1984-2010, Eiffel Software"
	license:	"GPL version 2 (see http://www.eiffel.com/licensing/gpl.txt)"
	licensing_options:	"http://www.eiffel.com/licensing"
	copying: "[
			This file is part of Eiffel Software's Eiffel Development Environment.
			
			Eiffel Software's Eiffel Development Environment is free
			software; you can redistribute it and/or modify it under
			the terms of the GNU General Public License as published
			by the Free Software Foundation, version 2 of the License
			(available at the URL listed under "license" above).
			
			Eiffel Software's Eiffel Development Environment is
			distributed in the hope that it will be useful, but
			WITHOUT ANY WARRANTY; without even the implied warranty
			of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
			See the GNU General Public License for more details.
			
			You should have received a copy of the GNU General Public
			License along with Eiffel Software's Eiffel Development
			Environment; if not, write to the Free Software Foundation,
			Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
		]"
	source: "[
			Eiffel Software
			5949 Hollister Ave., Goleta, CA 93117 USA
			Telephone 805-685-1006, Fax 805-685-6869
			Website http://www.eiffel.com
			Customer support http://support.eiffel.com
		]"

end -- class EM_INHERITANCE_LINK