BlockingStream (Pinot Query Runtime 1.0.0 API)

Type Parameters:

E - The type of the elements, usually a TransferableBlock
```
public interface BlockingStream<E>
```
An interface that represents an abstract blocking stream of elements that can be consumed. These streams are designed to be consumed by a single thread and do not support null elements.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`cancel()`	Cancels the stream.
`E`	`get()`	Returns the next element on the stream, blocking if there is no element ready.
`Object`	`getId()`	The id of the stream.

- Method Detail
  - getId
```
Object getId()
```
    The id of the stream. Mostly used for logging. Implementations of this method must be thread safe.
  - get
```
E get()
```
    Returns the next element on the stream, blocking if there is no element ready.
  - cancel
```
void cancel()
```
    Cancels the stream. This method can be called by any thread.