org.apache.flink.table.planner.plan.nodes.exec

Class ExecNodeBase<T>

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.ExecNodeBase<T>

Type Parameters:

T - The type of the elements that result from this node.

All Implemented Interfaces:

ExecNode<T>, ExecNodeTranslator<T>

Direct Known Subclasses:

BatchExecBoundedStreamScan, BatchExecDynamicFilteringDataCollector, BatchExecHashAggregate, BatchExecHashJoin, BatchExecHashWindowAggregate, BatchExecLimit, BatchExecMultipleInput, BatchExecNestedLoopJoin, BatchExecOverAggregateBase, BatchExecPythonGroupAggregate, BatchExecPythonGroupWindowAggregate, BatchExecRank, BatchExecScriptTransform, BatchExecSort, BatchExecSortAggregate, BatchExecSortLimit, BatchExecSortMergeJoin, BatchExecSortWindowAggregate, CommonExecCalc, CommonExecCorrelate, CommonExecExchange, CommonExecExpand, CommonExecLegacySink, CommonExecLegacyTableSourceScan, CommonExecLookupJoin, CommonExecMatch, CommonExecPythonCalc, CommonExecPythonCorrelate, CommonExecSink, CommonExecTableSourceScan, CommonExecUnion, CommonExecValues, CommonExecWindowTableFunction, StreamExecAggregateBase, StreamExecChangelogNormalize, StreamExecDataStreamScan, StreamExecDeduplicate, StreamExecDropUpdateBefore, StreamExecGroupTableAggregate, StreamExecIntervalJoin, StreamExecJoin, StreamExecMiniBatchAssigner, StreamExecMultipleInput, StreamExecOverAggregate, StreamExecPythonGroupTableAggregate, StreamExecPythonOverAggregate, StreamExecRank, StreamExecSort, StreamExecTemporalJoin, StreamExecTemporalSort, StreamExecWatermarkAssigner, StreamExecWindowDeduplicate, StreamExecWindowJoin, StreamExecWindowRank

public abstract class ExecNodeBase<T>
extends Object
implements ExecNode<T>

Base class for ExecNode.

Field Summary

Fields inherited from interface org.apache.flink.table.planner.plan.nodes.exec.ExecNode

FIELD_NAME_CONFIGURATION, FIELD_NAME_DESCRIPTION, FIELD_NAME_ID, FIELD_NAME_INPUT_PROPERTIES, FIELD_NAME_OUTPUT_TYPE, FIELD_NAME_TYPE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExecNodeBase(int id, ExecNodeContext context, ReadableConfig persistedConfig, List<InputProperty> inputProperties, LogicalType outputType, String description)

Method Summary

Modifier and Type	Method and Description
void	accept(ExecNodeVisitor visitor) Accepts a visit from a ExecNodeVisitor.
protected String	createFormattedTransformationDescription(String description, ReadableConfig config)
protected String	createFormattedTransformationName(String detailName, String simplifiedName, ReadableConfig config)
protected String	createTransformationDescription(ReadableConfig config)
protected TransformationMetadata	createTransformationMeta(String operatorName, ExecNodeConfig config)
protected TransformationMetadata	createTransformationMeta(String operatorName, String detailName, String simplifiedName, ExecNodeConfig config)
protected String	createTransformationName(ReadableConfig config)
protected String	createTransformationUid(String operatorName, ExecNodeConfig config)
protected ExecNodeContext	getContextFromAnnotation() Retrieves the default context from the ExecNodeMetadata annotation to be serialized into the JSON plan.
String	getDescription() Returns a string which describes this node.
int	getId() The unique ID of the node.
List<ExecEdge>	getInputEdges() Returns a list of this node's input ExecEdges.
List<InputProperty>	getInputProperties() Returns a list of this node's input properties.
LogicalType	getOutputType() Returns the output LogicalType of this node, this type should be consistent with the type parameter T.
ReadableConfig	getPersistedConfig()
protected String	getSimplifiedName()
Transformation<T>	getTransformation()
protected boolean	inputsContainSingleton() Whether singleton distribution is required.
void	replaceInputEdge(int index, ExecEdge newInputEdge) Replaces the ordinalInParentth input edge.
void	resetTransformation()
void	setCompiled(boolean compiled) Declares whether the node has been created as part of a plan compilation.
void	setInputEdges(List<ExecEdge> inputEdges) Sets the input ExecEdges which connect this nodes and its input nodes.
Transformation<T>	translateToPlan(Planner planner) Translates this node into a Transformation.
protected abstract Transformation<T>	translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner, ExecNodeConfig config) Internal method, translates this node into a Flink operator.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecNodeBase

protected ExecNodeBase(int id,
                       ExecNodeContext context,
                       ReadableConfig persistedConfig,
                       List<InputProperty> inputProperties,
                       LogicalType outputType,
                       String description)

Method Detail

getContextFromAnnotation

protected final ExecNodeContext getContextFromAnnotation()

Retrieves the default context from the ExecNodeMetadata annotation to be serialized into the JSON plan.

getPersistedConfig

public ReadableConfig getPersistedConfig()

getId

public final int getId()

Description copied from interface: ExecNode

The unique ID of the node.

Specified by:

getId in interface ExecNode<T>

getDescription

public String getDescription()

Description copied from interface: ExecNode

Returns a string which describes this node.

Specified by:

getDescription in interface ExecNode<T>

getOutputType

public LogicalType getOutputType()

Description copied from interface: ExecNode

Returns the output LogicalType of this node, this type should be consistent with the type parameter T.

Such as, if T is RowData, the output type should be RowType. please refer to the JavaDoc of RowData for more info about mapping of logical types to internal data structures.

Specified by:

getOutputType in interface ExecNode<T>

getInputProperties

public List<InputProperty> getInputProperties()

Description copied from interface: ExecNode

Returns a list of this node's input properties.

NOTE: If there are no inputs, returns an empty list, not null.

Specified by:

getInputProperties in interface ExecNode<T>

Returns:

List of this node's input properties.

getInputEdges

public List<ExecEdge> getInputEdges()

Description copied from interface: ExecNode

Returns a list of this node's input ExecEdges.

NOTE: If there are no inputs, returns an empty list, not null.

Specified by:

getInputEdges in interface ExecNode<T>

setInputEdges

public void setInputEdges(List<ExecEdge> inputEdges)

Description copied from interface: ExecNode

Sets the input ExecEdges which connect this nodes and its input nodes.

NOTE: If there are no inputs, the given inputEdges should be empty, not null.

Specified by:

setInputEdges in interface ExecNode<T>

Parameters:

inputEdges - the input ExecEdges.

replaceInputEdge

public void replaceInputEdge(int index,
                             ExecEdge newInputEdge)

Description copied from interface: ExecNode

Replaces the ordinalInParent^th input edge.

Specified by:

replaceInputEdge in interface ExecNode<T>

Parameters:

index - Position of the child input edge, 0 is the first.

newInputEdge - New edge that should be put at position `index`.

translateToPlan

public final Transformation<T> translateToPlan(Planner planner)

Description copied from interface: ExecNodeTranslator

Translates this node into a Transformation.

NOTE: This method should return same translate result if called multiple times.

Specified by:

translateToPlan in interface ExecNodeTranslator<T>

Parameters:

planner - The Planner of the translated graph.

accept

public void accept(ExecNodeVisitor visitor)

Description copied from interface: ExecNode

Accepts a visit from a ExecNodeVisitor.

Specified by:

accept in interface ExecNode<T>

Parameters:

visitor - ExecNodeVisitor.

setCompiled

public void setCompiled(boolean compiled)

Description copied from interface: ExecNode

Declares whether the node has been created as part of a plan compilation. Some translation properties might be impacted by this (e.g. UID generation for transformations).

Specified by:

setCompiled in interface ExecNode<T>

translateToPlanInternal

protected abstract Transformation<T> translateToPlanInternal(org.apache.flink.table.planner.delegation.PlannerBase planner,
                                                             ExecNodeConfig config)

Internal method, translates this node into a Flink operator.

Parameters:

planner - The planner.

config - per-ExecNode configuration that contains the merged configuration from various layers which all the nodes implementing this method should use, instead of retrieving configuration from the planner. For more details check ExecNodeConfig.

inputsContainSingleton

protected boolean inputsContainSingleton()

Whether singleton distribution is required.

getSimplifiedName

protected String getSimplifiedName()

createTransformationUid

protected String createTransformationUid(String operatorName,
                                         ExecNodeConfig config)

createTransformationName

protected String createTransformationName(ReadableConfig config)

createTransformationDescription

protected String createTransformationDescription(ReadableConfig config)

createTransformationMeta

protected TransformationMetadata createTransformationMeta(String operatorName,
                                                          ExecNodeConfig config)

createTransformationMeta

protected TransformationMetadata createTransformationMeta(String operatorName,
                                                          String detailName,
                                                          String simplifiedName,
                                                          ExecNodeConfig config)

createFormattedTransformationDescription

protected String createFormattedTransformationDescription(String description,
                                                          ReadableConfig config)

createFormattedTransformationName

protected String createFormattedTransformationName(String detailName,
                                                   String simplifiedName,
                                                   ReadableConfig config)

resetTransformation

public void resetTransformation()

getTransformation

@VisibleForTesting
public Transformation<T> getTransformation()