org.apache.flink.api.java.operators

Class JoinOperator<I1,I2,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.TwoInputOperator<IN1,IN2,OUT,O>

org.apache.flink.api.java.operators.TwoInputUdfOperator<I1,I2,OUT,JoinOperator<I1,I2,OUT>>

org.apache.flink.api.java.operators.JoinOperator<I1,I2,OUT>

Type Parameters:

I1 - The type of the first input DataSet of the Join transformation.

I2 - The type of the second input DataSet of the Join transformation.

OUT - The type of the result of the Join transformation.

All Implemented Interfaces:

UdfOperator<JoinOperator<I1,I2,OUT>>

Direct Known Subclasses:

JoinOperator.EquiJoin

public abstract class JoinOperator<I1,I2,OUT>
extends TwoInputUdfOperator<I1,I2,OUT,JoinOperator<I1,I2,OUT>>

A DataSet that is the result of a Join transformation.

See Also:

DataSet

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JoinOperator.DefaultFlatJoinFunction<T1,T2>
static class	JoinOperator.DefaultJoin<I1,I2> A Join transformation that wraps pairs of joining elements into Tuple2. It also represents the DataSet that is the result of a Join transformation.
static class	JoinOperator.EquiJoin<I1,I2,OUT> A Join transformation that applies a on each pair of joining elements. It also represents the DataSet that is the result of a Join transformation.
static class	JoinOperator.JoinHint An enumeration of hints, optionally usable to tell the system how exactly execute the join.
static class	JoinOperator.JoinOperatorSets<I1,I2> Intermediate step of a Join transformation.
static class	JoinOperator.JoinProjection<I1,I2>
static class	JoinOperator.LeftSemiFlatJoinFunction<T1,T2>
static class	JoinOperator.ProjectFlatJoinFunction<T1,T2,R extends Tuple>
static class	JoinOperator.ProjectJoin<I1,I2,OUT extends Tuple> A Join transformation that projects joining elements or fields of joining Tuples into result Tuples.
static class	JoinOperator.RightSemiFlatJoinFunction<T1,T2>

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JoinOperator(DataSet<I1> input1, DataSet<I2> input2, Keys<I1> keys1, Keys<I2> keys2, TypeInformation<OUT> returnType, JoinOperator.JoinHint hint)

Method Summary

Methods

Modifier and Type	Method and Description
protected JoinOperator.JoinHint	getJoinHint()
protected Keys<I1>	getKeys1()
protected Keys<I2>	getKeys2()

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

extractSemanticAnnotationsFromUdf, getBroadcastSets, getParameters, getSematicProperties, setSemanticProperties, withBroadcastSet, withConstantSetFirst, withConstantSetSecond, withParameters

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

getInput1, getInput1Type, getInput2, getInput2Type, translateToDataFlow

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, coGroup, cross, crossWithHuge, crossWithTiny, distinct, distinct, distinct, filter, flatMap, getExecutionEnvironment, getType, groupBy, groupBy, iterate, iterateDelta, join, joinWithHuge, joinWithTiny, map, max, min, output, print, printToErr, project, reduce, reduceGroup, runOperation, sum, union, write, write, writeAsCsv, writeAsCsv, writeAsCsv, writeAsText, writeAsText

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinOperator

protected JoinOperator(DataSet<I1> input1,
            DataSet<I2> input2,
            Keys<I1> keys1,
            Keys<I2> keys2,
            TypeInformation<OUT> returnType,
            JoinOperator.JoinHint hint)

Method Detail

getKeys1

protected Keys<I1> getKeys1()

getKeys2

protected Keys<I2> getKeys2()

getJoinHint

protected JoinOperator.JoinHint getJoinHint()