org.apache.flink.table.runtime.keyselector

Interface RowDataKeySelector

All Superinterfaces:

Function, KeySelector<RowData,RowData>, ResultTypeQueryable<RowData>, Serializable

All Known Implementing Classes:

BinaryRowDataKeySelector, EmptyRowDataKeySelector

public interface RowDataKeySelector
extends KeySelector<RowData,RowData>, ResultTypeQueryable<RowData>

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

Method Summary

Modifier and Type	Method and Description
RowDataTypeInfo	getProducedType() Gets the data type (as a TypeInformation) produced by this function or input format.

Methods inherited from interface org.apache.flink.api.java.functions.KeySelector

getKey

Method Detail

getProducedType

RowDataTypeInfo getProducedType()

Description copied from interface: ResultTypeQueryable

Gets the data type (as a TypeInformation) produced by this function or input format.

Specified by:

getProducedType in interface ResultTypeQueryable<RowData>

Returns:

The data type produced by this function or input format.