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nebulex

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In-memory and distributed caching toolkit for Elixir

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nebulex lib nebulex adapters local metadata.ex
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lib/nebulex/adapters/local/metadata.ex 

defmodule Nebulex.Adapters.Local.Metadata do

  @moduledoc false



  @type tab :: :ets.tid() | atom



  @spec init :: tab

  def init do

    :ets.new(__MODULE__, [:public, read_concurrency: true])

  end



  @spec get(tab, term, term) :: term

  def get(tab, key, default \\ nil) do

    :ets.lookup_element(tab, key, 2)

  rescue

    ArgumentError -> default

  end



  @spec fetch!(tab, term) :: term

  def fetch!(tab, key) do

    :ets.lookup_element(tab, key, 2)

  end



  @spec put(tab, term, term) :: :ok

  def put(tab, key, value) do

    true = :ets.insert(tab, {key, value})

    :ok

  end

end