BlockingQueueFrameChannel (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.frame.channel.BlockingQueueFrameChannel

```
public class BlockingQueueFrameChannel
extends Object
```
In-memory channel backed by a limited-capacity Deque. Instances of this class provide a ReadableFrameChannel through readable(), and a WritableFrameChannel through writable(). Instances of this class are used by a single writer and single reader. The writer and reader may run concurrently.

Constructor Summary

Constructors
Constructor Description

BlockingQueueFrameChannel(int maxQueuedFrames)
Create a channel with a particular buffer size (expressed in number of frames).

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static BlockingQueueFrameChannel`	`minimal()`	Create a channel that buffers one frame.
`ReadableFrameChannel`	`readable()`	Returns the readable side of this channel.
`WritableFrameChannel`	`writable()`	Returns the writable side of this channel.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BlockingQueueFrameChannel
```
public BlockingQueueFrameChannel(int maxQueuedFrames)
```
    Create a channel with a particular buffer size (expressed in number of frames).
- Method Detail
  - writable
```
public WritableFrameChannel writable()
```
    Returns the writable side of this channel.
  - readable
```
public ReadableFrameChannel readable()
```
    Returns the readable side of this channel.
  - minimal
```
public static BlockingQueueFrameChannel minimal()
```
    Create a channel that buffers one frame. This is the smallest possible queue size.