# `StatifierPersistence.Execution`
[🔗](https://github.com/riddler/statifier_persistence/blob/v0.13.0/lib/statifier_persistence/execution.ex#L1)

The host-facing view of a durable execution: what state is this execution in - never
what its bytes are. The position blob stays on the stored record
(ADR-0004 decision 1), loaded only through the guarded
`StatifierPersistence.Storage.load_execution_position/3` path; this struct
carries the fields a host reads to decide what to do with an execution.

# `t`

```elixir
@type t() :: %StatifierPersistence.Execution{
  content_hash: StatifierPersistence.Storage.Adapter.content_hash(),
  donedata: term() | nil,
  execution_id: StatifierPersistence.Storage.Adapter.execution_id(),
  failure: String.t() | nil,
  status: StatifierPersistence.Storage.Adapter.execution_status()
}
```

# `from_record`

```elixir
@spec from_record(StatifierPersistence.Storage.Adapter.execution_record()) :: t()
```

Builds the host-facing struct from a stored
`t:StatifierPersistence.Storage.Adapter.execution_record/0`, dropping the two
blob fields (`identity_blob`, `position_blob`) and carrying everything
else verbatim.

`donedata` is always `nil` here: a stored record carries no donedata
(ADR-0008 decision 3) - a position that has reached a final state has no
configuration left to carry it, so it exists only on the step that
produced it, via `StatifierPersistence.Executions`' own construction of this
struct.

---

*Consult [api-reference.md](api-reference.md) for complete listing*