org.apache.flink.api.java.operators.translation

Class PlanUnwrappingReduceGroupOperator<IN,OUT,K>

java.lang.Object

org.apache.flink.api.common.operators.Operator<OUT>

org.apache.flink.api.common.operators.AbstractUdfOperator<OUT,FT>

org.apache.flink.api.common.operators.SingleInputOperator<IN,OUT,FT>

org.apache.flink.api.common.operators.base.GroupReduceOperatorBase<Tuple2<K,IN>,OUT,org.apache.flink.api.common.functions.GroupReduceFunction<Tuple2<K,IN>,OUT>>

org.apache.flink.api.java.operators.translation.PlanUnwrappingReduceGroupOperator<IN,OUT,K>

All Implemented Interfaces:

org.apache.flink.util.Visitable<org.apache.flink.api.common.operators.Operator<?>>

public class PlanUnwrappingReduceGroupOperator<IN,OUT,K>
extends org.apache.flink.api.common.operators.base.GroupReduceOperatorBase<Tuple2<K,IN>,OUT,org.apache.flink.api.common.functions.GroupReduceFunction<Tuple2<K,IN>,OUT>>

A reduce operator that takes 2-tuples (key-value pairs), and applies the group reduce operation only on the unwrapped values.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PlanUnwrappingReduceGroupOperator.TupleUnwrappingGroupCombinableGroupReducer<IN,OUT,K>
static class	PlanUnwrappingReduceGroupOperator.TupleUnwrappingNonCombinableGroupReducer<IN,OUT,K>

Field Summary

Fields inherited from class org.apache.flink.api.common.operators.SingleInputOperator

input

Fields inherited from class org.apache.flink.api.common.operators.AbstractUdfOperator

broadcastInputs, userFunction

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

compilerHints, name, operatorInfo, parameters

Constructor Summary

Constructors

Constructor and Description
PlanUnwrappingReduceGroupOperator(org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> udf, Keys.SelectorFunctionKeys<IN,K> key, String name, org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outType, org.apache.flink.api.common.typeinfo.TypeInformation<Tuple2<K,IN>> typeInfoWithKey, boolean combinable)

Method Summary

Methods inherited from class org.apache.flink.api.common.operators.base.GroupReduceOperatorBase

executeOnCollections, getCustomPartitioner, getGroupOrder, isCombinable, setCombinable, setCustomPartitioner, setGroupOrder

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

accept, addInput, addInput, clearInputs, getInput, getKeyColumns, getNumberOfInputs, getOperatorInfo, getSemanticProperties, setInput, setInput, setInputs, setSemanticProperties

Methods inherited from class org.apache.flink.api.common.operators.AbstractUdfOperator

asArray, emptyClassArray, getBroadcastInputs, getUserCodeWrapper, setBroadcastVariable, setBroadcastVariables

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

createUnionCascade, createUnionCascade, createUnionCascade, getCompilerHints, getDegreeOfParallelism, getName, getParallelism, getParameters, setDegreeOfParallelism, setName, setParallelism, setParameter, setParameter, setParameter, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanUnwrappingReduceGroupOperator

public PlanUnwrappingReduceGroupOperator(org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT> udf,
                                         Keys.SelectorFunctionKeys<IN,K> key,
                                         String name,
                                         org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outType,
                                         org.apache.flink.api.common.typeinfo.TypeInformation<Tuple2<K,IN>> typeInfoWithKey,
                                         boolean combinable)