org.apache.flink.streaming.runtime.partitioner

类 BroadcastPartitioner<T>

java.lang.Object

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

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

类型参数:

T - Type of the elements in the Stream being broadcast

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>>>

@Internal
public class BroadcastPartitioner<T>
extends StreamPartitioner<T>

Partitioner that selects all the output channels.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.streaming.runtime.partitioner.StreamPartitioner

numberOfChannels

构造器概要

构造器

构造器和说明
BroadcastPartitioner()

方法概要

限定符和类型	方法和说明
StreamPartitioner<T>	copy()
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.
boolean	isBroadcast()
boolean	isPointwise()
int	selectChannel(org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>> record) Note: Broadcast mode could be handled directly for all the output channels in record writer, so it is no need to select channels via this method.
String	toString()

从类继承的方法 org.apache.flink.streaming.runtime.partitioner.StreamPartitioner

equals, hashCode, setup

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

BroadcastPartitioner

public BroadcastPartitioner()

方法详细资料

selectChannel

public int selectChannel(org.apache.flink.runtime.plugable.SerializationDelegate<StreamRecord<T>> record)

Note: Broadcast mode could be handled directly for all the output channels in record writer, so it is no need to select channels via this method.

getUpstreamSubtaskStateMapper

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

从类复制的说明: StreamPartitioner

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

覆盖:

getUpstreamSubtaskStateMapper 在类中 StreamPartitioner<T>

getDownstreamSubtaskStateMapper

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

从类复制的说明: StreamPartitioner

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

指定者:

getDownstreamSubtaskStateMapper 在类中 StreamPartitioner<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>>>

覆盖:

isBroadcast 在类中 StreamPartitioner<T>

copy

public StreamPartitioner<T> copy()

指定者:

copy 在类中 StreamPartitioner<T>

isPointwise

public boolean isPointwise()

指定者:

isPointwise 在类中 StreamPartitioner<T>

toString

public String toString()

覆盖:

toString 在类中 Object