org.apache.flink.streaming.api.transformations

类 PartitionTransformation<T>

java.lang.Object

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

org.apache.flink.streaming.api.transformations.PartitionTransformation<T>

类型参数:

T - The type of the elements that result from this PartitionTransformation

@Internal
public class PartitionTransformation<T>
extends org.apache.flink.api.dag.Transformation<T>

This transformation represents a change of partitioning of the input elements.

This does not create a physical operation, it only affects how upstream operations are connected to downstream operations.

字段概要

从类继承的字段 org.apache.flink.api.dag.Transformation

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

构造器概要

构造器

构造器和说明
PartitionTransformation(org.apache.flink.api.dag.Transformation<T> input, StreamPartitioner<T> partitioner) Creates a new PartitionTransformation from the given input and StreamPartitioner.
PartitionTransformation(org.apache.flink.api.dag.Transformation<T> input, StreamPartitioner<T> partitioner, StreamExchangeMode exchangeMode) Creates a new PartitionTransformation from the given input and StreamPartitioner.

方法概要

限定符和类型	方法和说明
StreamExchangeMode	getExchangeMode() Returns the StreamExchangeMode of this PartitionTransformation.
List<org.apache.flink.api.dag.Transformation<?>>	getInputs()
StreamPartitioner<T>	getPartitioner() Returns the StreamPartitioner that must be used for partitioning the elements of the input Transformation.
List<org.apache.flink.api.dag.Transformation<?>>	getTransitivePredecessors()

从类继承的方法 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, setBufferTimeout, setCoLocationGroupKey, setDescription, setMaxParallelism, setName, setOutputType, setParallelism, setResources, setSlotSharingGroup, setSlotSharingGroup, setUid, setUidHash, toString, updateManagedMemoryStateBackendUseCase

从类继承的方法 java.lang.Object

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

构造器详细资料

PartitionTransformation

public PartitionTransformation(org.apache.flink.api.dag.Transformation<T> input,
                               StreamPartitioner<T> partitioner)

Creates a new PartitionTransformation from the given input and StreamPartitioner.

参数:

input - The input Transformation

partitioner - The StreamPartitioner

PartitionTransformation

public PartitionTransformation(org.apache.flink.api.dag.Transformation<T> input,
                               StreamPartitioner<T> partitioner,
                               StreamExchangeMode exchangeMode)

Creates a new PartitionTransformation from the given input and StreamPartitioner.

参数:

input - The input Transformation

partitioner - The StreamPartitioner

exchangeMode - The StreamExchangeMode

方法详细资料

getPartitioner

public StreamPartitioner<T> getPartitioner()

Returns the StreamPartitioner that must be used for partitioning the elements of the input Transformation.

getExchangeMode

public StreamExchangeMode getExchangeMode()

Returns the StreamExchangeMode of this PartitionTransformation.

getTransitivePredecessors

public List<org.apache.flink.api.dag.Transformation<?>> getTransitivePredecessors()

指定者:

getTransitivePredecessors 在类中 org.apache.flink.api.dag.Transformation<T>

getInputs

public List<org.apache.flink.api.dag.Transformation<?>> getInputs()

指定者:

getInputs 在类中 org.apache.flink.api.dag.Transformation<T>