org.apache.flink.api.java.operators.join

类 JoinOperatorSetsBase<I1,I2>

java.lang.Object

org.apache.flink.api.java.operators.join.JoinOperatorSetsBase<I1,I2>

类型参数:

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

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

直接已知子类:

JoinOperator.JoinOperatorSets

已过时。

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.

@Deprecated
 @Public
public class JoinOperatorSetsBase<I1,I2>
extends Object

Intermediate step of an Outer Join transformation.

To continue the Join transformation, select the join key of the first input DataSet by calling where(int...) or where(KeySelector).

另请参阅:

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

嵌套类概要

嵌套类

限定符和类型	类和说明
class	JoinOperatorSetsBase.JoinOperatorSetsPredicateBase 已过时。 Intermediate step of a Join transformation.

字段概要

字段

限定符和类型	字段和说明
protected DataSet<I1>	input1 已过时。
protected DataSet<I2>	input2 已过时。
protected org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint	joinHint 已过时。
protected JoinType	joinType 已过时。

构造器概要

构造器

构造器和说明
JoinOperatorSetsBase(DataSet<I1> input1, DataSet<I2> input2) 已过时。
JoinOperatorSetsBase(DataSet<I1> input1, DataSet<I2> input2, org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint hint) 已过时。
JoinOperatorSetsBase(DataSet<I1> input1, DataSet<I2> input2, org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint hint, JoinType type) 已过时。

方法概要

限定符和类型	方法和说明
JoinOperatorSetsBase.JoinOperatorSetsPredicateBase	where(int... fields) 已过时。 Continues a Join transformation.
<K> JoinOperatorSetsBase.JoinOperatorSetsPredicateBase	where(org.apache.flink.api.java.functions.KeySelector<I1,K> keySelector) 已过时。 Continues a Join transformation and defines a KeySelector function for the first join DataSet.
JoinOperatorSetsBase.JoinOperatorSetsPredicateBase	where(String... fields) 已过时。 Continues a Join transformation.

从类继承的方法 java.lang.Object

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

字段详细资料

input1

protected final DataSet<I1> input1

已过时。

input2

protected final DataSet<I2> input2

已过时。

joinHint

protected final org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint joinHint

已过时。

joinType

protected final JoinType joinType

已过时。

构造器详细资料

JoinOperatorSetsBase

public JoinOperatorSetsBase(DataSet<I1> input1,
                            DataSet<I2> input2)

已过时。

JoinOperatorSetsBase

public JoinOperatorSetsBase(DataSet<I1> input1,
                            DataSet<I2> input2,
                            org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint hint)

已过时。

JoinOperatorSetsBase

public JoinOperatorSetsBase(DataSet<I1> input1,
                            DataSet<I2> input2,
                            org.apache.flink.api.common.operators.base.JoinOperatorBase.JoinHint hint,
                            JoinType type)

已过时。

方法详细资料

where

public JoinOperatorSetsBase.JoinOperatorSetsPredicateBase where(int... fields)

已过时。

Continues a Join transformation.

Defines the Tuple fields of the first join DataSet that should be used as join keys.

Note: Fields can only be selected as join keys on Tuple DataSets.

参数:

fields - The indexes of the other Tuple fields of the first join DataSets that should be used as keys.

返回:

An incomplete Join transformation. Call JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(int...) or JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(KeySelector) to continue the Join.

另请参阅:

Tuple, DataSet

where

public JoinOperatorSetsBase.JoinOperatorSetsPredicateBase where(String... fields)

已过时。

Continues a Join transformation.

Defines the fields of the first join DataSet that should be used as grouping keys. Fields are the names of member fields of the underlying type of the data set.

参数:

fields - The fields of the first join DataSets that should be used as keys.

返回:

An incomplete Join transformation. Call JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(int...) or JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(KeySelector) to continue the Join.

另请参阅:

Tuple, DataSet

where

public <K> JoinOperatorSetsBase.JoinOperatorSetsPredicateBase where(org.apache.flink.api.java.functions.KeySelector<I1,K> keySelector)

已过时。

Continues a Join transformation and defines a KeySelector function for the first join DataSet.

The KeySelector function is called for each element of the first DataSet and extracts a single key value on which the DataSet is joined.

参数:

keySelector - The KeySelector function which extracts the key values from the DataSet on which it is joined.

返回:

An incomplete Join transformation. Call JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(int...) or JoinOperatorSetsBase.JoinOperatorSetsPredicateBase.equalTo(KeySelector) to continue the Join.

另请参阅:

KeySelector, DataSet