org.apache.flink.api.java.operators

Class MapOperator<IN,OUT>

java.lang.Object

org.apache.flink.api.java.DataSet<OUT>

org.apache.flink.api.java.operators.Operator<OUT,O>

org.apache.flink.api.java.operators.SingleInputOperator<IN,OUT,O>

org.apache.flink.api.java.operators.SingleInputUdfOperator<IN,OUT,MapOperator<IN,OUT>>

org.apache.flink.api.java.operators.MapOperator<IN,OUT>

Type Parameters:

IN - The type of the data set consumed by the operator.

OUT - The type of the data set created by the operator.

All Implemented Interfaces:

UdfOperator<MapOperator<IN,OUT>>

public class MapOperator<IN,OUT>
extends SingleInputUdfOperator<IN,OUT,MapOperator<IN,OUT>>

This operator represents the application of a "map" function on a data set, and the result data set produced by the function.

See Also:

MapFunction

Field Summary

Fields

Modifier and Type	Field and Description
protected String	defaultName
protected MapFunction<IN,OUT>	function

Fields inherited from class org.apache.flink.api.java.operators.Operator

dop, name

Constructor Summary

Constructors

Constructor and Description
MapOperator(DataSet<IN> input, TypeInformation<OUT> resultType, MapFunction<IN,OUT> function, String defaultName)

Method Summary

Methods

Modifier and Type	Method and Description
protected MapOperatorBase<IN,OUT,MapFunction<IN,OUT>>	translateToDataFlow(Operator<IN> input) Translates this operation to a data flow operator of the common data flow API.

Methods inherited from class org.apache.flink.api.java.operators.SingleInputUdfOperator

extractSemanticAnnotationsFromUdf, getBroadcastSets, getParameters, getSemanticProperties, setSemanticProperties, withBroadcastSet, withConstantSet, withParameters

Methods inherited from class org.apache.flink.api.java.operators.SingleInputOperator

getInput, getInputType

Methods inherited from class org.apache.flink.api.java.operators.Operator

getName, getParallelism, getResultType, name, setParallelism

Methods inherited from class org.apache.flink.api.java.DataSet

aggregate, checkSameExecutionContext, clean, coGroup, cross, crossWithHuge, crossWithTiny, distinct, distinct, distinct, distinct, filter, first, flatMap, getExecutionEnvironment, getType, groupBy, groupBy, groupBy, iterate, iterateDelta, join, join, joinWithHuge, joinWithTiny, map, mapPartition, max, maxBy, min, minBy, output, partitionByHash, partitionByHash, partitionByHash, partitionCustom, partitionCustom, partitionCustom, print, printToErr, project, rebalance, reduce, reduceGroup, runOperation, sum, union, write, write, writeAsCsv, writeAsCsv, writeAsCsv, writeAsCsv, writeAsFormattedText, writeAsFormattedText, writeAsText, writeAsText

Methods inherited from class java.lang.Object

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

Field Detail

function

protected final MapFunction<IN,OUT> function

defaultName

protected final String defaultName

Constructor Detail

MapOperator

public MapOperator(DataSet<IN> input,
           TypeInformation<OUT> resultType,
           MapFunction<IN,OUT> function,
           String defaultName)

Method Detail

translateToDataFlow

protected MapOperatorBase<IN,OUT,MapFunction<IN,OUT>> translateToDataFlow(Operator<IN> input)

Description copied from class: SingleInputOperator

Translates this operation to a data flow operator of the common data flow API.

Specified by:

translateToDataFlow in class SingleInputOperator<IN,OUT,MapOperator<IN,OUT>>

Parameters:

input - The data flow operator that produces this operation's input data.

Returns:

The translated data flow operator.