org.apache.flink.streaming.examples.iteration

Class IterateExample.InputMap

java.lang.Object

org.apache.flink.streaming.examples.iteration.IterateExample.InputMap

All Implemented Interfaces:

Serializable, Function, MapFunction<Tuple2<Integer,Integer>,Tuple5<Integer,Integer,Integer,Integer,Integer>>

Enclosing class:

IterateExample

public static class IterateExample.InputMap
extends Object
implements MapFunction<Tuple2<Integer,Integer>,Tuple5<Integer,Integer,Integer,Integer,Integer>>

Map the inputs so that the next Fibonacci numbers can be calculated while preserving the original input tuple. A counter is attached to the tuple and incremented in every iteration step.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InputMap()

Method Summary

Modifier and Type	Method and Description
Tuple5<Integer,Integer,Integer,Integer,Integer>	map(Tuple2<Integer,Integer> value) The mapping method.

Methods inherited from class java.lang.Object

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

Constructor Detail

InputMap

public InputMap()

Method Detail

map

public Tuple5<Integer,Integer,Integer,Integer,Integer> map(Tuple2<Integer,Integer> value)
                                                    throws Exception

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<Tuple2<Integer,Integer>,Tuple5<Integer,Integer,Integer,Integer,Integer>>

Parameters:

value - The input value.

Returns:

The transformed value

Throws:

Exception - This method may throw exceptions. Throwing an exception will cause the operation to fail and may trigger recovery.