ConcurrentResponseContext (druid-processing 0.20.1 API)

```
public class ConcurrentResponseContext
extends ResponseContext
```
The implementation of ResponseContext with a ConcurrentHashMap as a delegate

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.druid.query.context.ResponseContext
  ResponseContext.BaseKey, ResponseContext.Key, ResponseContext.SerializationResult

Constructors
Constructor and Description
`ConcurrentResponseContext()`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static ConcurrentResponseContext`	`createEmpty()`
`protected Map<ResponseContext.BaseKey,Object>`	`getDelegate()`

Methods inherited from class org.apache.druid.query.context.ResponseContext
add, deserialize, get, merge, put, remove, serializeWith

Constructor Detail
- ConcurrentResponseContext
```
public ConcurrentResponseContext()
```

public static ConcurrentResponseContext createEmpty()

protected Map<ResponseContext.BaseKey,Object> getDelegate()

Class ConcurrentResponseContext