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Active Job Continuable

模块 Continuable 提供了跟踪作业进度并在中断时从上次中断的地方继续的能力。

ActiveJob::Continuable 混入您的作业以启用续传。

有关用法,请参阅 ActiveJob::Continuation

方法
N
S

Attributes

[RW] resumptions

作业已恢复的次数。

类公共方法

new(...)

# File activejob/lib/active_job/continuable.rb, line 23
def initialize(...)
  super(...)
  self.resumptions = 0
  self.continuation = Continuation.new(self, {})
end

实例公共方法

step(step_name, start: nil, isolated: false, &block)

启动一个新的续传步骤

# File activejob/lib/active_job/continuable.rb, line 36
def step(step_name, start: nil, isolated: false, &block)
  unless block_given?
    step_method = method(step_name)

    raise ArgumentError, "Step method '#{step_name}' must accept 0 or 1 arguments" if step_method.arity > 1

    if step_method.parameters.any? { |type, name| type == :key || type == :keyreq }
      raise ArgumentError, "Step method '#{step_name}' must not accept keyword arguments"
    end

    block = step_method.arity == 0 ? -> (_) { step_method.call } : step_method
  end
  checkpoint! if continuation.advanced?
  continuation.step(step_name, start: start, isolated: isolated, &block)
end