# JournalBufferWriter.StartEntry(JournalStreamId)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.journalbufferwriter/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.journaling/orleans.journaling.journalbufferwriter/methods/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Journaling/JournalBufferWriter.cs#L155)

```csharp
protected virtual void StartEntry(JournalStreamId streamId)
```

Writes any format-owned entry prefix and prepares the payload writer.

### Parameters

- `streamId` (`JournalStreamId`): The durable state id.