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ecto
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A toolkit for data mapping and language integrated query for Elixir
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lib/ecto/adapter/transaction.ex
defmodule Ecto.Adapter.Transaction do
@moduledoc """
Specifies the adapter transactions API.
"""
@doc """
Runs the given function inside a transaction.
Returns `{:ok, value}` if the transaction was successful where `value`
is the value return by the function or `{:error, value}` if the transaction
was rolled back where `value` is the value given to `rollback/1`.
See `Ecto.Repo.transaction/1`.
"""
@callback transaction(repo :: Ecto.Repo.t, options :: Keyword.t, function :: fun) :: {:ok, any} | {:error, any}
@doc """
Returns true if the given process is inside a transaction.
"""
@callback in_transaction?(repo :: Ecto.Repo.t) :: boolean
@doc """
Rolls back the current transaction.
The transaction will return the value given as `{:error, value}`.
See `Ecto.Repo.rollback/1`.
"""
@callback rollback(repo :: Ecto.Repo.t, value :: any) :: no_return
end