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module Trailblazer
# Operations is simply a thin API to define, inherit and run circuits by passing the options object.
# It encourages the linear railway style (http://trb.to/gems/workflow/circuit.html#operation) but can
# easily be extend for more complex workflows.
class Operation
# End event: All subclasses of End:::Success are interpreted as "success".
module Railway
def self.fail! ; Activity::Left end
def self.pass! ; Activity::Right end
def self.fail_fast!; Activity::FastTrack::FailFast end
def self.pass_fast!; Activity::FastTrack::PassFast end
# @param options Context
# @param end_event The last emitted signal in a circuit is usually the end event.
def self.Result(end_event, options, *)
Result.new(end_event.kind_of?(End::Success), options, end_event)
end
# The Railway::Result knows about its binary state, the context (data), and the last event in the circuit.
class Result < Result # Operation::Result
def initialize(success, data, event)
super(success, data)
@event = event
end
attr_reader :event
end
module End
Success = Activity::Railway::End::Success
Failure = Activity::Railway::End::Failure
end
end # Railway
end
end
Version data entries
14 entries across 14 versions & 1 rubygems