Package org.apache.flink.table.runtime.operators.join.stream.state

Class MultiJoinStateViews

java.lang.Object

org.apache.flink.table.runtime.operators.join.stream.state.MultiJoinStateViews

public final class MultiJoinStateViews
extends Object

Factory class to create different implementations of MultiJoinStateView based on the characteristics described in JoinInputSideSpec.

Each state view uses a MapState where the primary key is the `joinKey` derived from the join conditions (via JoinKeyExtractor). The value stored within this map depends on whether the input side has a unique key and how it relates to the join key, optimizing storage and access patterns.

Constructor Summary

Constructors

Constructor	Description
MultiJoinStateViews()

Method Summary

Modifier and Type	Method	Description
static MultiJoinStateView	create(org.apache.flink.api.common.functions.RuntimeContext ctx, String stateName, JoinInputSideSpec inputSideSpec, org.apache.flink.table.types.logical.RowType joinKeyType, org.apache.flink.table.types.logical.RowType recordType, long retentionTime)	Creates a MultiJoinStateView depends on JoinInputSideSpec.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiJoinStateViews

public MultiJoinStateViews()

Method Detail

create

public static MultiJoinStateView create(org.apache.flink.api.common.functions.RuntimeContext ctx,
                                        String stateName,
                                        JoinInputSideSpec inputSideSpec,
                                        @Nullable
                                        org.apache.flink.table.types.logical.RowType joinKeyType,
                                        org.apache.flink.table.types.logical.RowType recordType,
                                        long retentionTime)

Creates a MultiJoinStateView depends on JoinInputSideSpec.