# IEvictionStrategy.OnBlockAllocated(FixedSizeBuffer)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.ievictionstrategy/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.providers.streams.common.ievictionstrategy/methods/)

```csharp
public abstract void OnBlockAllocated(FixedSizeBuffer newBlock)
```

Method which should be called when data adapter allocated a new block

### Parameters

- `newBlock` (`FixedSizeBuffer`): The new block.