org.apache.flink.graph.utils

Class GraphUtils.NonForwardingIdentityMapper<T>

java.lang.Object

org.apache.flink.graph.utils.GraphUtils.NonForwardingIdentityMapper<T>

Type Parameters:

T - element type

All Implemented Interfaces:

Serializable, Function, MapFunction<T,T>

Enclosing class:

GraphUtils

public static final class GraphUtils.NonForwardingIdentityMapper<T>
extends Object
implements MapFunction<T,T>

The identity mapper returns the input as output.

This does not forward fields and is used to break an operator chain.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NonForwardingIdentityMapper()

Method Summary

Modifier and Type	Method and Description
T	map(T value) The mapping method.

Methods inherited from class java.lang.Object

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

Constructor Detail

NonForwardingIdentityMapper

public NonForwardingIdentityMapper()

Method Detail

map

public T map(T value)

Description copied from interface: MapFunction

The mapping method. Takes an element from the input data set and transforms it into exactly one element.

Specified by:

map in interface MapFunction<T,T>

Parameters:

value - The input value.

Returns:

The transformed value