# File lib/ruote/exp/flowexpression.rb, line 83
    def initialize (context, h)

      @context = context

      @msg = nil

      self.h = h

      h._id ||= Ruote.to_storage_id(h.fei)
      h['type'] ||= 'expressions'
      h.name ||= self.class.expression_names.first
      h.children ||= []
      h.applied_workitem['fei'] = h.fei
      h.created_time ||= Ruote.now_to_utc_s

      h.on_cancel ||= attribute(:on_cancel)
      h.on_error ||= attribute(:on_error)
      h.on_timeout ||= attribute(:on_timeout)
    end