# GrainStreamQueueCheckpointer Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.grainstreamqueuecheckpointer/)

## GrainStreamQueueCheckpointer(IStreamCheckpointerGrain) {#constructor-orleans-streams-istreamcheckpointergrain-9237c25d}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.grainstreamqueuecheckpointer/constructors/constructor-orleans-streams-istreamcheckpointergrain-9237c25d/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Streaming/Checkpointers/GrainStreamQueueCheckpointer.cs#L30-L32)

```csharp
public GrainStreamQueueCheckpointer(IStreamCheckpointerGrain grain)
```

Initializes a new instance with default options.

### Parameters

- `grain` (`IStreamCheckpointerGrain`): The grain used to persist checkpoints.

## GrainStreamQueueCheckpointer(IStreamCheckpointerGrain, GrainStreamQueueCheckpointerOptions) {#constructor-orleans-streams-istreamcheckpointergrain-orleans-configuration-grain-6096a932}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.grainstreamqueuecheckpointer/constructors/constructor-orleans-streams-istreamcheckpointergrain-orleans-configuration-grain-6096a932/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Streaming/Checkpointers/GrainStreamQueueCheckpointer.cs#L18-L60)

```csharp
public GrainStreamQueueCheckpointer(IStreamCheckpointerGrain grain, GrainStreamQueueCheckpointerOptions options)
```

Initializes a new instance.

### Parameters

- `grain` (`IStreamCheckpointerGrain`): The grain used to persist checkpoints.
- `options` (`GrainStreamQueueCheckpointerOptions`): The checkpointer options.