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# frozen_string_literal: true
module AASM
module Core
module Invokers
##
# Base concrete invoker class which contain basic
# invoking and logging definitions
class BaseInvoker
attr_reader :failures, :subject, :record, :args, :result
##
# Initialize a new concrete invoker instance.
# NOTE that concrete invoker must be used per-subject/record
# (one instance per subject/record)
#
# ==Options:
#
# +subject+ - invoking subject comparable with this invoker
# +record+ - invoking record
# +args+ - arguments which will be passed to the callback
def initialize(subject, record, args)
@subject = subject
@record = record
@args = args
@result = false
@failures = []
end
##
# Collect failures to a specified buffer
#
# ==Options:
#
# +failures+ - failures buffer to collect failures
def with_failures(failures_buffer)
@failures = failures_buffer
self
end
##
# Execute concrete invoker, log the error and return result
def invoke
return unless may_invoke?
log_failure unless invoke_subject
result
end
##
# Check if concrete invoker may be invoked for a specified subject
def may_invoke?
raise NoMethodError, '"#may_invoke?" is not implemented'
end
##
# Log failed invoking
def log_failure
raise NoMethodError, '"#log_failure" is not implemented'
end
##
# Execute concrete invoker
def invoke_subject
raise NoMethodError, '"#invoke_subject" is not implemented'
end
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems