/src/lib/design_patterns/chain_handler.e
http://github.com/tybor/Liberty · Specman e · 45 lines · 14 code · 3 blank · 28 comment · 0 complexity · a4800ee928ff0cae631c99cb1f81b9d7 MD5 · raw file
- -- This file is part of a Liberty Eiffel library.
- -- See the full copyright at the end.
- --
- deferred class CHAIN_HANDLER[C_ -> CHAIN_OF_RESPONSIBILITY]
- --
- -- Part of a chain of responsibility. It must tell if it is able to handle a request, and then handle it.
- --
- feature {CHAIN_OF_RESPONSIBILITY}
- can_handle (chain: C_): BOOLEAN
- -- True if the handler can indeed handle a request from the given chain of responsibility.
- require
- chain /= Void
- deferred
- end
- handle (chain: C_)
- -- Handle a request from the given chain of responsibility.
- require
- chain /= Void
- can_handle(chain)
- deferred
- end
- end -- class CHAIN_HANDLER
- --
- -- Copyright (C) 2009-2017: by all the people cited in the AUTHORS file.
- --
- -- Permission is hereby granted, free of charge, to any person obtaining a copy
- -- of this software and associated documentation files (the "Software"), to deal
- -- in the Software without restriction, including without limitation the rights
- -- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- -- copies of the Software, and to permit persons to whom the Software is
- -- furnished to do so, subject to the following conditions:
- --
- -- The above copyright notice and this permission notice shall be included in
- -- all copies or substantial portions of the Software.
- --
- -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- -- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- -- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- -- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- -- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- -- THE SOFTWARE.