Package org.apache.flink.table.runtime.operators.python.scalar

Class EmbeddedPythonScalarFunctionOperator

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator<OUT>

org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator<org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.operators.python.AbstractEmbeddedStatelessFunctionOperator

org.apache.flink.table.runtime.operators.python.scalar.EmbeddedPythonScalarFunctionOperator

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.streaming.api.operators.BoundedOneInput, org.apache.flink.streaming.api.operators.Input<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.api.operators.OneInputStreamOperator<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.SetupableStreamOperator<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.api.operators.StreamOperatorStateHandler.CheckpointedStreamOperator

@Internal
public class EmbeddedPythonScalarFunctionOperator
extends AbstractEmbeddedStatelessFunctionOperator

The Python ScalarFunction operator in embedded Python environment.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.python.AbstractEmbeddedStatelessFunctionOperator

inputType, reuseResultRowData, rowDataWrapper, udfInputOffsets, udfInputType, udfOutputType, userDefinedFunctionInputArgs, userDefinedFunctionInputConverters, userDefinedFunctionOutputConverters

Fields inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator

interpreter

Fields inherited from class org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator

bundleFinishedCallback, config, elementCount, lastFinishBundleTime, maxBundleSize, systemEnvEnabled

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, lastRecordAttributes1, lastRecordAttributes2, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor

Description

EmbeddedPythonScalarFunctionOperator(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 udfInputType, org.apache.flink.table.types.logical.RowType udfOutputType, int[] udfInputOffsets, org.apache.flink.table.runtime.generated.GeneratedProjection forwardedFieldGeneratedProjection)

Method Summary

Modifier and Type	Method	Description
void	endInput()
void	open()
void	openPythonInterpreter()	Setup method for Python Interpreter.
void	processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)

Methods inherited from class org.apache.flink.streaming.api.operators.python.embedded.AbstractEmbeddedPythonFunctionOperator

close, createPythonEnvironmentManager, invokeFinishBundle

Methods inherited from class org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator

checkInvokeFinishBundleByCount, drainUnregisteredTimers, finish, getConfiguration, getFlinkMetricContainer, isBundleFinished, prepareSnapshotPreBarrier, processWatermark, setCurrentKey

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark1, processWatermark2, processWatermarkStatus, processWatermarkStatus1, processWatermarkStatus2, reportOrForwardLatencyMarker, setChainingStrategy, setKeyContextElement1, setKeyContextElement2, setProcessingTimeService, setup, snapshotState, snapshotState

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.Input

processLatencyMarker, processRecordAttributes, processWatermark, processWatermarkStatus

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

hasKeyContext

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, finish, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Constructor Detail

EmbeddedPythonScalarFunctionOperator

public EmbeddedPythonScalarFunctionOperator(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 udfInputType,
                                            org.apache.flink.table.types.logical.RowType udfOutputType,
                                            int[] udfInputOffsets,
                                            @Nullable
                                            org.apache.flink.table.runtime.generated.GeneratedProjection forwardedFieldGeneratedProjection)

Method Detail

open

public void open()
          throws Exception

Specified by:

open in interface org.apache.flink.streaming.api.operators.StreamOperator<org.apache.flink.table.data.RowData>

Overrides:

open in class AbstractEmbeddedStatelessFunctionOperator

Throws:

Exception

openPythonInterpreter

public void openPythonInterpreter()

Description copied from class: AbstractEmbeddedPythonFunctionOperator

Setup method for Python Interpreter.

Specified by:

openPythonInterpreter in class AbstractEmbeddedPythonFunctionOperator<org.apache.flink.table.data.RowData>

endInput

public void endInput()

processElement

public void processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<org.apache.flink.table.data.RowData> element)