# JournaledGrain<TGrainState, TEventBase>.OnActivateAsync(CancellationToken)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.eventsourcing.journaledgrain-2/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.eventsourcing/orleans.eventsourcing.journaledgrain-2/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.EventSourcing/JournaledGrain.cs#L173)

```csharp
public override Task JournaledGrain<TGrainState, OnActivateAsync(CancellationToken cancellationToken)
```

By default, upon activation, the journaled grain waits until it has loaded the latest view from storage. Subclasses can override this behavior, and skip the wait if desired.

### Parameters

- `cancellationToken` (`CancellationToken`)