Package org.apache.flink.table.runtime.keyselector

Class GenericRowDataKeySelector

java.lang.Object

org.apache.flink.table.runtime.keyselector.GenericRowDataKeySelector

All Implemented Interfaces:

Serializable, 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>, RowDataKeySelector

public class GenericRowDataKeySelector
extends Object
implements RowDataKeySelector

A KeySelector which will extract key from RowData. The key type is GenericRowData.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
GenericRowDataKeySelector(InternalTypeInfo<org.apache.flink.table.data.RowData> keyRowType, RowDataSerializer keySerializer, GeneratedProjection generatedProjection)

Method Summary

Modifier and Type	Method	Description
GenericRowDataKeySelector	copy()
org.apache.flink.table.data.RowData	getKey(org.apache.flink.table.data.RowData value)
InternalTypeInfo<org.apache.flink.table.data.RowData>	getProducedType()
void	open()

Methods inherited from class java.lang.Object

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

Constructor Details

GenericRowDataKeySelector

public GenericRowDataKeySelector(InternalTypeInfo<org.apache.flink.table.data.RowData> keyRowType,
 RowDataSerializer keySerializer,
 GeneratedProjection generatedProjection)

Method Details

open

public void open()

getKey

public org.apache.flink.table.data.RowData getKey(org.apache.flink.table.data.RowData value)
                                           throws Exception

Specified by:

getKey in interface org.apache.flink.api.java.functions.KeySelector<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

Throws:

Exception

getProducedType

public InternalTypeInfo<org.apache.flink.table.data.RowData> getProducedType()

Specified by:

getProducedType in interface org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.table.data.RowData>

Specified by:

getProducedType in interface RowDataKeySelector

copy

public GenericRowDataKeySelector copy()