org.apache.flink.streaming.runtime.partitioner

类 StreamPartitioner<T>

java.lang.Object

org.apache.flink.streaming.runtime.partitioner.StreamPartitioner<T>

所有已实现的接口:

Serializable, org.apache.flink.runtime.io.network.api.writer.ChannelSelector<org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>>>

直接已知子类:

BroadcastPartitioner, CustomPartitionerWrapper, ForwardPartitioner, GlobalPartitioner, KeyGroupStreamPartitioner, RebalancePartitioner, RescalePartitioner, ShufflePartitioner

@Internal
public abstract class StreamPartitioner<T>
extends Object
implements org.apache.flink.runtime.io.network.api.writer.ChannelSelector<org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>>>, Serializable

A special ChannelSelector for use in streaming programs.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected int	numberOfChannels

构造器概要

构造器

构造器和说明
StreamPartitioner()

方法概要

限定符和类型	方法和说明
abstract StreamPartitioner<T>	copy()
boolean	equals(Object o)
abstract org.apache.flink.runtime.io.network.api.writer.SubtaskStateMapper	getDownstreamSubtaskStateMapper() Defines the behavior of this partitioner, when downstream rescaled during recovery of in-flight data.
org.apache.flink.runtime.io.network.api.writer.SubtaskStateMapper	getUpstreamSubtaskStateMapper() Defines the behavior of this partitioner, when upstream rescaled during recovery of in-flight data.
int	hashCode()
boolean	isBroadcast()
abstract boolean	isPointwise()
void	setup(int numberOfChannels)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.io.network.api.writer.ChannelSelector

selectChannel

字段详细资料

numberOfChannels

protected int numberOfChannels

构造器详细资料

StreamPartitioner

public StreamPartitioner()

方法详细资料

setup

public void setup(int numberOfChannels)

指定者:

setup 在接口中 org.apache.flink.runtime.io.network.api.writer.ChannelSelector<org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>>>

isBroadcast

public boolean isBroadcast()

指定者:

isBroadcast 在接口中 org.apache.flink.runtime.io.network.api.writer.ChannelSelector<org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>>>

copy

public abstract StreamPartitioner<T> copy()

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

getUpstreamSubtaskStateMapper

public org.apache.flink.runtime.io.network.api.writer.SubtaskStateMapper getUpstreamSubtaskStateMapper()

Defines the behavior of this partitioner, when upstream rescaled during recovery of in-flight data.

getDownstreamSubtaskStateMapper

public abstract org.apache.flink.runtime.io.network.api.writer.SubtaskStateMapper getDownstreamSubtaskStateMapper()

Defines the behavior of this partitioner, when downstream rescaled during recovery of in-flight data.

isPointwise

public abstract boolean isPointwise()