KeySelectorUtil.OneKeySelector (Flink : Runtime 2.0-preview1 API)

java.lang.Object
- org.apache.flink.streaming.util.keys.KeySelectorUtil.OneKeySelector<IN,K>

Type Parameters:

IN - The type of the elements where the key is extracted from.

K - The type of the key.

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.java.functions.KeySelector<IN,K>

Enclosing class:

KeySelectorUtil
```
public static final class KeySelectorUtil.OneKeySelector<IN,K>
extends Object
implements org.apache.flink.api.java.functions.KeySelector<IN,K>
```
Key extractor that extracts a single field via a generic comparator.

See Also:

Serialized Form

- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  K getKey(IN value)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getKey
```
public K getKey(IN value)
         throws Exception
```
    Specified by:
    
    getKey in interface org.apache.flink.api.java.functions.KeySelector<IN,K>
    
    Throws:
    
    Exception