org.apache.flink.streaming.examples.windowing

Class GroupedProcessingTimeWindowExample.FirstFieldKeyExtractor<Type extends org.apache.flink.api.java.tuple.Tuple,Key>

java.lang.Object

org.apache.flink.streaming.examples.windowing.GroupedProcessingTimeWindowExample.FirstFieldKeyExtractor<Type,Key>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.java.functions.KeySelector<Type,Key>

Enclosing class:

GroupedProcessingTimeWindowExample

public static class GroupedProcessingTimeWindowExample.FirstFieldKeyExtractor<Type extends org.apache.flink.api.java.tuple.Tuple,Key>
extends Object
implements org.apache.flink.api.java.functions.KeySelector<Type,Key>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FirstFieldKeyExtractor()

Method Summary

Modifier and Type	Method and Description
Key	getKey(Type value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FirstFieldKeyExtractor

public FirstFieldKeyExtractor()

Method Detail

getKey

public Key getKey(Type value)

Specified by:

getKey in interface org.apache.flink.api.java.functions.KeySelector<Type extends org.apache.flink.api.java.tuple.Tuple,Key>