# JournalBufferWriter.WritePreservedEntry(JournalStreamId, IPreservedJournalEntry)

[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#L170-L171)

```csharp
protected virtual void WritePreservedEntry(JournalStreamId streamId, IPreservedJournalEntry entry)
```

Appends a format-owned entry for retired or unknown state preservation.

### Parameters

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