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

Class AbstractRowPythonScalarFunctionOperator

java.lang.Object

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

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

org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator<IN,OUT,UDFIN>

org.apache.flink.table.runtime.operators.python.scalar.AbstractPythonScalarFunctionOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow,Row>

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

All Implemented Interfaces:

Serializable, CheckpointListener, BoundedOneInput, KeyContext, OneInputStreamOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow>, SetupableStreamOperator<org.apache.flink.table.runtime.types.CRow>, StreamOperator<org.apache.flink.table.runtime.types.CRow>, StreamOperatorStateHandler.CheckpointedStreamOperator, Disposable

Direct Known Subclasses:

ArrowPythonScalarFunctionOperator, PythonScalarFunctionOperator

@Internal
public abstract class AbstractRowPythonScalarFunctionOperator
extends AbstractPythonScalarFunctionOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow,Row>

Base Python ScalarFunction operator for the legacy planner.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator

AbstractStatelessFunctionOperator.StreamRecordCRowWrappingCollector, AbstractStatelessFunctionOperator.StreamRecordRowDataWrappingCollector

Field Summary

Fields

Modifier and Type	Field and Description
protected AbstractStatelessFunctionOperator.StreamRecordCRowWrappingCollector	cRowWrapper The collector used to collect records.

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

forwardedFields, scalarFunctions

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

bais, baisWrapper, forwardedInputQueue, inputType, outputType, userDefinedFunctionInputOffsets, userDefinedFunctionInputType, userDefinedFunctionOutputType, userDefinedFunctionResultQueue

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

chainingStrategy, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor and Description
AbstractRowPythonScalarFunctionOperator(Configuration config, PythonFunctionInfo[] scalarFunctions, RowType inputType, RowType outputType, int[] udfInputOffsets, int[] forwardedFields)

Method Summary

Modifier and Type	Method and Description
void	bufferInput(org.apache.flink.table.runtime.types.CRow input) Buffers the specified input, it will be used to construct the operator result together with the user-defined function execution result.
Row	getFunctionInput(org.apache.flink.table.runtime.types.CRow element)
void	open() This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g.

Methods inherited from class org.apache.flink.table.runtime.operators.python.scalar.AbstractPythonScalarFunctionOperator

getPythonEnv

Methods inherited from class org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator

createPythonFunctionRunner, createPythonFunctionRunner, processElement

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

close, createPythonEnvironmentManager, dispose, emitResults, endInput, getFlinkMetricContainer, getPythonConfig, prepareSnapshotPreBarrier, processWatermark

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, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, numEventTimeTimers, numProcessingTimeTimers, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, 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.streaming.api.operators.OneInputStreamOperator

processLatencyMarker

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

getMetricGroup, getOperatorID, initializeState, setKeyContextElement1, setKeyContextElement2, snapshotState

Methods inherited from interface org.apache.flink.runtime.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

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

getCurrentKey, setCurrentKey

Field Detail

cRowWrapper

protected transient AbstractStatelessFunctionOperator.StreamRecordCRowWrappingCollector cRowWrapper

The collector used to collect records.

Constructor Detail

AbstractRowPythonScalarFunctionOperator

public AbstractRowPythonScalarFunctionOperator(Configuration config,
                                               PythonFunctionInfo[] scalarFunctions,
                                               RowType inputType,
                                               RowType outputType,
                                               int[] udfInputOffsets,
                                               int[] forwardedFields)

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<org.apache.flink.table.runtime.types.CRow>

Overrides:

open in class AbstractPythonScalarFunctionOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow,Row>

Throws:

Exception - An exception in this method causes the operator to fail.

bufferInput

public void bufferInput(org.apache.flink.table.runtime.types.CRow input)

Description copied from class: AbstractStatelessFunctionOperator

Buffers the specified input, it will be used to construct the operator result together with the user-defined function execution result.

Specified by:

bufferInput in class AbstractStatelessFunctionOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow,Row>

getFunctionInput

public Row getFunctionInput(org.apache.flink.table.runtime.types.CRow element)

Specified by:

getFunctionInput in class AbstractStatelessFunctionOperator<org.apache.flink.table.runtime.types.CRow,org.apache.flink.table.runtime.types.CRow,Row>