note
	description: "Class which is used to retrieve one of the objects of a query."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	author: "David Solal"
	date: "$Date$"
	revision: "$Revision$"

class
	DB_ACTION_DYN

inherit
	ACTION
		redefine
			execute 
		end

create
	make

feature -- Creation
	
	make (s: like selection)
			-- Initialize the selection 's'
		require
			not_void: s /= Void 
		do
			selection := s
			Create list.make
		ensure
			set: selection = s 
		end

feature -- Actions

	execute
			-- Update item with current selected item in the container.
			-- This procedure is beeing executed for each row resulted of the query
			-- Thus, in that way, we create a linked_list DB_TUPLE
		local
			tuple: DB_TUPLE
		do
				-- The call to copy (selection.cursor) will execute the mapping from the
				-- database to the tuple
			Create tuple.copy (selection.cursor)
			list.extend(deep_clone(tuple))
		end

feature -- Access

	selection: DB_SELECTION
		-- Current selection

	list: LINKED_LIST [ DB_TUPLE ];
		-- Result List of the query.

note
	copyright:	"Copyright (c) 1984-2006, 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
			 356 Storke Road, 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 DB_ACTION_DYN