Packages

grains

0.3.3
1.7.1 1.7.0 1.6.0 1.5.1 1.5.0 1.4.1 1.4.0 1.3.1 1.3.0 1.2.0 1.1.1 1.1.0 1.0.0 0.5.0 0.5.0-rc.3 0.5.0-rc.2 0.5.0-rc.1 0.5.0-rc.0 0.3.7 0.3.6 0.3.5 0.3.4 0.3.3 0.3.2 0.3.1 0.3.0 0.2.0 0.1.2 0.1.1 0.1.0

A framework to implement process data flows using declarative flow graphs.

HexDocs

Current section

Files

Jump to
Readme
30 Versions
0 Dependencies
Dependants
Files
Activity
grains lib grains support cache.ex
Raw

lib/grains/support/cache.ex 

defmodule Grains.Support.Cache do

  @moduledoc """

  A grain to forward messages downstream and cache the last value it received.



  This grain is meant for testing purposes, where another grain is to be tested.

  """



  use Grains.GenGrain



  @impl true

  def init(_) do

    {:ok, :no_value_received_yet}

  end



  def handle_push(msg, _from, _previous_cached_value) do

    push(msg)

    {:noreply, msg}

  end



  def handle_pull(_from, cached_value) do

    {:reply, cached_value, cached_value}

  end

end