Package org.apache.flink.api.java.operators

Class GroupReduceOperator<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,GroupReduceOperator<IN,OUT>>

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

@Deprecated
@Public
public class GroupReduceOperator<IN,OUT>
extends SingleInputUdfOperator<IN,OUT,GroupReduceOperator<IN,OUT>>

Deprecated.

All Flink DataSet APIs are deprecated since Flink 1.18 and will be removed in a future Flink major version. You can still build your application in DataSet, but you should move to either the DataStream and/or Table API.

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

See Also:

FLIP-131: Consolidate the user-facing Dataflow SDKs/APIs (and deprecate the DataSet API

Field Summary

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

minResources, name, parallelism, preferredResources

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

context

Constructor Summary

Constructors

Constructor	Description
GroupReduceOperator(DataSet<IN> input, org.apache.flink.api.common.typeinfo.TypeInformation<OUT> resultType, org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> function, String defaultName)	Deprecated. Constructor for a non-grouped reduce (all reduce).
GroupReduceOperator(Grouping<IN> input, org.apache.flink.api.common.typeinfo.TypeInformation<OUT> resultType, org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> function, String defaultName)	Deprecated. Constructor for a grouped reduce.

Method Summary

Modifier and Type	Method	Description
protected org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>	getFunction()	Deprecated.
org.apache.flink.api.common.operators.SingleInputSemanticProperties	getSemanticProperties()	Deprecated. Gets the semantic properties that have been set for the user-defined functions (UDF).
boolean	isCombinable()	Deprecated.
GroupReduceOperator<IN,OUT>	setCombinable(boolean combinable)	Deprecated.
protected org.apache.flink.api.common.operators.base.GroupReduceOperatorBase<?,OUT,?>	translateToDataFlow(org.apache.flink.api.common.operators.Operator<IN> input)	Deprecated. 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

extractSemanticAnnotations, getAnalyzedUdfSemanticsFlag, getBroadcastSets, getParameters, returns, returns, returns, setAnalyzedUdfSemanticsFlag, setSemanticProperties, udfWithForwardedFieldsAnnotation, withBroadcastSet, withForwardedFields, 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

getMinResources, getName, getParallelism, getPreferredResources, getResultType, name, setParallelism

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

aggregate, checkSameExecutionContext, clean, coGroup, collect, combineGroup, count, cross, crossWithHuge, crossWithTiny, distinct, distinct, distinct, distinct, fillInType, filter, first, flatMap, fullOuterJoin, fullOuterJoin, getExecutionEnvironment, getType, groupBy, groupBy, groupBy, iterate, iterateDelta, join, join, joinWithHuge, joinWithTiny, leftOuterJoin, leftOuterJoin, map, mapPartition, max, maxBy, min, minBy, output, partitionByHash, partitionByHash, partitionByHash, partitionByRange, partitionByRange, partitionByRange, partitionCustom, partitionCustom, partitionCustom, print, print, printOnTaskManager, printToErr, printToErr, project, rebalance, reduce, reduceGroup, rightOuterJoin, rightOuterJoin, runOperation, sortPartition, sortPartition, sortPartition, 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

Constructor Detail

GroupReduceOperator

public GroupReduceOperator(DataSet<IN> input,
                           org.apache.flink.api.common.typeinfo.TypeInformation<OUT> resultType,
                           org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> function,
                           String defaultName)

Deprecated.

Constructor for a non-grouped reduce (all reduce).

Parameters:

input - The input data set to the groupReduce function.

function - The user-defined GroupReduce function.

GroupReduceOperator

public GroupReduceOperator(Grouping<IN> input,
                           org.apache.flink.api.common.typeinfo.TypeInformation<OUT> resultType,
                           org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> function,
                           String defaultName)

Deprecated.

Constructor for a grouped reduce.

Parameters:

input - The grouped input to be processed group-wise by the groupReduce function.

function - The user-defined GroupReduce function.

Method Detail

getFunction

protected org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> getFunction()

Deprecated.

Specified by:

getFunction in class SingleInputUdfOperator<IN,OUT,GroupReduceOperator<IN,OUT>>

isCombinable

@Internal
public boolean isCombinable()

Deprecated.

setCombinable

public GroupReduceOperator<IN,OUT> setCombinable(boolean combinable)

Deprecated.

getSemanticProperties

@Internal
public org.apache.flink.api.common.operators.SingleInputSemanticProperties getSemanticProperties()

Deprecated.

Description copied from interface: UdfOperator

Gets the semantic properties that have been set for the user-defined functions (UDF).

Specified by:

getSemanticProperties in interface UdfOperator<IN>

Overrides:

getSemanticProperties in class SingleInputUdfOperator<IN,OUT,GroupReduceOperator<IN,OUT>>

Returns:

The semantic properties of the UDF.

translateToDataFlow

protected org.apache.flink.api.common.operators.base.GroupReduceOperatorBase<?,OUT,?> translateToDataFlow(org.apache.flink.api.common.operators.Operator<IN> input)

Deprecated.

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,GroupReduceOperator<IN,OUT>>

Parameters:

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

Returns:

The translated data flow operator.