org.apache.flink.table.runtime.functions.python

Class PythonScalarFunctionFlatMap

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.api.common.functions.RichFlatMapFunction<org.apache.flink.types.Row,org.apache.flink.types.Row>

org.apache.flink.table.runtime.functions.python.AbstractPythonStatelessFunctionFlatMap

org.apache.flink.table.runtime.functions.python.AbstractPythonScalarFunctionFlatMap

org.apache.flink.table.runtime.functions.python.PythonScalarFunctionFlatMap

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.FlatMapFunction<org.apache.flink.types.Row,org.apache.flink.types.Row>, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.api.java.typeutils.ResultTypeQueryable<org.apache.flink.types.Row>

@Internal
public class PythonScalarFunctionFlatMap
extends AbstractPythonScalarFunctionFlatMap

The RichFlatMapFunction used to invoke Python ScalarFunction functions for the old planner.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.table.runtime.functions.python.AbstractPythonScalarFunctionFlatMap

scalarFunctions

Fields inherited from class org.apache.flink.table.runtime.functions.python.AbstractPythonStatelessFunctionFlatMap

bais, baisWrapper, baos, forwardedInputQueue, forwardedInputSerializer, inputType, jobOptions, outputType, pythonFunctionRunner, resultCollector, userDefinedFunctionInputType, userDefinedFunctionOutputType

Constructor Summary

Constructors

Constructor and Description
PythonScalarFunctionFlatMap(org.apache.flink.configuration.Configuration config, org.apache.flink.table.functions.python.PythonFunctionInfo[] scalarFunctions, org.apache.flink.table.types.logical.RowType inputType, org.apache.flink.table.types.logical.RowType outputType, int[] udfInputOffsets, int[] forwardedFields)

Method Summary

Modifier and Type	Method and Description
void	emitResult(org.apache.flink.api.java.tuple.Tuple2<byte[],Integer> resultTuple)
String	getInputOutputCoderUrn()
void	open(org.apache.flink.configuration.Configuration parameters)
void	processElementInternal(org.apache.flink.types.Row value)

Methods inherited from class org.apache.flink.table.runtime.functions.python.AbstractPythonScalarFunctionFlatMap

bufferInput, getForwardedFieldsCount, getFunctionUrn, getPythonEnv, getUserDefinedFunctionsProto

Methods inherited from class org.apache.flink.table.runtime.functions.python.AbstractPythonStatelessFunctionFlatMap

checkInvokeFinishBundleByCount, close, createPythonEnvironmentManager, flatMap, getFlinkMetricContainer, getFunctionInput, getProducedType, getPythonConfig, invokeFinishBundle

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

PythonScalarFunctionFlatMap

public PythonScalarFunctionFlatMap(org.apache.flink.configuration.Configuration config,
                                   org.apache.flink.table.functions.python.PythonFunctionInfo[] scalarFunctions,
                                   org.apache.flink.table.types.logical.RowType inputType,
                                   org.apache.flink.table.types.logical.RowType outputType,
                                   int[] udfInputOffsets,
                                   int[] forwardedFields)

Method Detail

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

open in class AbstractPythonScalarFunctionFlatMap

Throws:

Exception

getInputOutputCoderUrn

public String getInputOutputCoderUrn()

Specified by:

getInputOutputCoderUrn in class AbstractPythonStatelessFunctionFlatMap

processElementInternal

public void processElementInternal(org.apache.flink.types.Row value)
                            throws Exception

Specified by:

processElementInternal in class AbstractPythonStatelessFunctionFlatMap

Throws:

Exception

emitResult

public void emitResult(org.apache.flink.api.java.tuple.Tuple2<byte[],Integer> resultTuple)
                throws IOException

Specified by:

emitResult in class AbstractPythonStatelessFunctionFlatMap

Throws:

IOException