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Contents
#--
# Copyright (c) 2005-2010, John Mettraux, jmettraux@gmail.com
#
# 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.
#
# Made in Japan.
#++
module Ruote::Exp
#
# Undoes (cancels) another expression referred by its tag.
#
# pdef = Ruote.process_definition do
# concurrence do
# alpha :tag => 'kilroy'
# undo :ref => 'kilroy'
# end
# end
#
# This example is rather tiny, but it shows a process branch (undo) cancelling
# another (alpha).
#
# == cancel
#
# This expression is aliased to 'cancel'
#
# cancel :ref => 'invoicing_stage'
#
class UndoExpression < FlowExpression
names :undo, :cancel
def apply
ref = attribute(:ref) || attribute_text
tag = ref ? lookup_variable(ref) : nil
@context.storage.put_msg('cancel', 'fei' => tag)
reply_to_parent(h.applied_workitem)
end
def reply (workitem)
# never called
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems