See: Description
| Interface | Description | 
|---|---|
| HasOffset | Interface for any Spark  Receiverthat supports
 reading from and to some offset. | 
| Class | Description | 
|---|---|
| ReceiverBuilder<X,T extends org.apache.spark.streaming.receiver.Receiver<X>> | Class for building an instance for  Receiverthat uses Apache Beam mechanisms instead of
 Spark environment. | 
| SparkReceiverIO | Streaming sources for Spark  Receiver. | 
| SparkReceiverIO.Read<V> | A  PTransformto read from SparkReceiver. | 
| WrappedSupervisor | Wrapper class for  ReceiverSupervisorthat doesn't use Spark Environment. |