CoGroupedStreams.Where (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.streaming.api.datastream.CoGroupedStreams.Where<KEY>

Type Parameters:

KEY - The type of the key.

Enclosing class:

CoGroupedStreams<T1,T2>
```
@Public
public class CoGroupedStreams.Where<KEY>
extends Object
```
CoGrouped streams that have the key for one side defined.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class CoGroupedStreams.Where.EqualTo
A co-group operation that has KeySelectors defined for both inputs.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CoGroupedStreams.Where.EqualTo`	`equalTo(org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector)`	Specifies a `KeySelector` for elements from the second input.
`CoGroupedStreams.Where.EqualTo`	`equalTo(org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector, org.apache.flink.api.common.typeinfo.TypeInformation<KEY> keyType)`	Specifies a `KeySelector` for elements from the second input with explicit type information for the key type.

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

- Method Detail
  - equalTo
```
public CoGroupedStreams.Where.EqualTo equalTo(org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector)
```
    Specifies a KeySelector for elements from the second input.
    
    Parameters:
    
    keySelector - The KeySelector to be used for extracting the second input's key for partitioning.
  - equalTo
```
public CoGroupedStreams.Where.EqualTo equalTo(org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector,
                                              org.apache.flink.api.common.typeinfo.TypeInformation<KEY> keyType)
```
    Specifies a KeySelector for elements from the second input with explicit type information for the key type.
    
    Parameters:
    
    keySelector - The KeySelector to be used for extracting the key for partitioning.
    
    keyType - The type information describing the key type.