@Experimental(value=SOURCE_SINK)
See: Description
| Interface | Description | 
|---|---|
| HasOffset | 
 Interface for any Spark  
Receiver that 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  
Receiver that uses Apache Beam mechanisms instead of
 Spark environment. | 
| SparkReceiverIO | 
 Streaming sources for Spark  
Receiver. | 
| SparkReceiverIO.Read<V> | 
 A  
PTransform to read from Spark Receiver. | 
| WrappedSupervisor | 
 Wrapper class for  
ReceiverSupervisor that doesn't use Spark Environment. |