org.apache.flink.table.runtime.keyselector

接口 RowDataKeySelector

所有超级接口:

org.apache.flink.api.common.functions.Function, org.apache.flink.api.java.functions.KeySelector<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>, Serializable

所有已知实现类:

BinaryRowDataKeySelector, EmptyRowDataKeySelector

public interface RowDataKeySelector
extends org.apache.flink.api.java.functions.KeySelector<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

RowDataKeySelector takes an RowData and extracts the deterministic key for the RowData.

方法概要

限定符和类型	方法和说明
RowDataTypeInfo	getProducedType()

从接口继承的方法 org.apache.flink.api.java.functions.KeySelector

getKey

方法详细资料

getProducedType

RowDataTypeInfo getProducedType()

指定者:

getProducedType 在接口中 org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>