org.apache.flink.streaming.api.transformations

Class TimestampsAndWatermarksTransformation<IN>

java.lang.Object

org.apache.flink.api.dag.Transformation<T>

org.apache.flink.streaming.api.transformations.PhysicalTransformation<IN>

org.apache.flink.streaming.api.transformations.TimestampsAndWatermarksTransformation<IN>

Type Parameters:

IN - The input and output type of the transformation.

@Internal
public class TimestampsAndWatermarksTransformation<IN>
extends PhysicalTransformation<IN>

A PhysicalTransformation for a DataStream.assignTimestampsAndWatermarks(WatermarkStrategy).

Field Summary

Fields inherited from class org.apache.flink.api.dag.Transformation

bufferTimeout, description, id, name, outputType, typeUsed, UPPER_BOUND_MAX_PARALLELISM

Constructor Summary

Constructors

Constructor and Description
TimestampsAndWatermarksTransformation(String name, int parallelism, Transformation<IN> input, WatermarkStrategy<IN> watermarkStrategy, boolean parallelismConfigured) Creates a new Transformation with the given name, output type and parallelism.

Method Summary

Modifier and Type	Method and Description
ChainingStrategy	getChainingStrategy()
List<Transformation<?>>	getInputs() Returns the transformations that are the immediate predecessors of the current transformation in the transformation graph.
TypeInformation<IN>	getInputType() Returns the TypeInformation for the elements of the input.
List<Transformation<?>>	getTransitivePredecessors() Returns all transitive predecessor Transformations of this Transformation.
WatermarkStrategy<IN>	getWatermarkStrategy() Returns the WatermarkStrategy to use.
void	setChainingStrategy(ChainingStrategy chainingStrategy) Sets the chaining strategy of this Transformation.

Methods inherited from class org.apache.flink.streaming.api.transformations.PhysicalTransformation

isSupportsConcurrentExecutionAttempts, setSupportsConcurrentExecutionAttempts

Methods inherited from class org.apache.flink.api.dag.Transformation

declareManagedMemoryUseCaseAtOperatorScope, declareManagedMemoryUseCaseAtSlotScope, equals, getBufferTimeout, getCoLocationGroupKey, getDescription, getId, getManagedMemoryOperatorScopeUseCaseWeights, getManagedMemorySlotScopeUseCases, getMaxParallelism, getMinResources, getName, getNewNodeId, getOutputType, getParallelism, getPreferredResources, getSlotSharingGroup, getUid, getUserProvidedNodeHash, hashCode, isParallelismConfigured, setBufferTimeout, setCoLocationGroupKey, setDescription, setMaxParallelism, setName, setOutputType, setParallelism, setParallelism, setResources, setSlotSharingGroup, setSlotSharingGroup, setUid, setUidHash, toString, updateManagedMemoryStateBackendUseCase

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TimestampsAndWatermarksTransformation

public TimestampsAndWatermarksTransformation(String name,
                                             int parallelism,
                                             Transformation<IN> input,
                                             WatermarkStrategy<IN> watermarkStrategy,
                                             boolean parallelismConfigured)

Creates a new Transformation with the given name, output type and parallelism.

Parameters:

name - The name of the Transformation, this will be shown in Visualizations and the Log

parallelism - The parallelism of this Transformation

input - The input transformation of this Transformation

watermarkStrategy - The WatermarkStrategy to use

Method Detail

getInputType

public TypeInformation<IN> getInputType()

Returns the TypeInformation for the elements of the input.

getWatermarkStrategy

public WatermarkStrategy<IN> getWatermarkStrategy()

Returns the WatermarkStrategy to use.

getTransitivePredecessors

public List<Transformation<?>> getTransitivePredecessors()

Description copied from class: Transformation

Returns all transitive predecessor Transformations of this Transformation. This is, for example, used when determining whether a feedback edge of an iteration actually has the iteration head as a predecessor.

Specified by:

getTransitivePredecessors in class Transformation<IN>

Returns:

The list of transitive predecessors.

getInputs

public List<Transformation<?>> getInputs()

Description copied from class: Transformation

Returns the transformations that are the immediate predecessors of the current transformation in the transformation graph.

Specified by:

getInputs in class Transformation<IN>

getChainingStrategy

public ChainingStrategy getChainingStrategy()

setChainingStrategy

public void setChainingStrategy(ChainingStrategy chainingStrategy)

Description copied from class: PhysicalTransformation

Sets the chaining strategy of this Transformation.

Specified by:

setChainingStrategy in class PhysicalTransformation<IN>