org.apache.flink.runtime.query

类 KvStateLocationRegistry

java.lang.Object

org.apache.flink.runtime.query.KvStateLocationRegistry

public class KvStateLocationRegistry
extends Object

Simple registry, which maps InternalKvState registration notifications to KvStateLocation instances.

构造器概要

构造器

构造器和说明
KvStateLocationRegistry(org.apache.flink.api.common.JobID jobId, Map<JobVertexID,ExecutionJobVertex> jobVertices) Creates the registry for the job.

方法概要

限定符和类型	方法和说明
KvStateLocation	getKvStateLocation(String registrationName) Returns the KvStateLocation for the registered KvState instance or null if no location information is available.
void	notifyKvStateRegistered(JobVertexID jobVertexId, KeyGroupRange keyGroupRange, String registrationName, org.apache.flink.queryablestate.KvStateID kvStateId, InetSocketAddress kvStateServerAddress) Notifies the registry about a registered KvState instance.
void	notifyKvStateUnregistered(JobVertexID jobVertexId, KeyGroupRange keyGroupRange, String registrationName) Notifies the registry about an unregistered KvState instance.

从类继承的方法 java.lang.Object

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

构造器详细资料

KvStateLocationRegistry

public KvStateLocationRegistry(org.apache.flink.api.common.JobID jobId,
                               Map<JobVertexID,ExecutionJobVertex> jobVertices)

Creates the registry for the job.

参数:

jobId - JobID this coordinator belongs to.

jobVertices - Job vertices map of all vertices of this job.

方法详细资料

getKvStateLocation

public KvStateLocation getKvStateLocation(String registrationName)

Returns the KvStateLocation for the registered KvState instance or null if no location information is available.

参数:

registrationName - Name under which the KvState instance is registered.

返回:

Location information or null.

notifyKvStateRegistered

public void notifyKvStateRegistered(JobVertexID jobVertexId,
                                    KeyGroupRange keyGroupRange,
                                    String registrationName,
                                    org.apache.flink.queryablestate.KvStateID kvStateId,
                                    InetSocketAddress kvStateServerAddress)

Notifies the registry about a registered KvState instance.

参数:

jobVertexId - JobVertexID the KvState instance belongs to

keyGroupRange - Key group range the KvState instance belongs to

registrationName - Name under which the KvState has been registered

kvStateId - ID of the registered KvState instance

kvStateServerAddress - Server address where to find the KvState instance

抛出:

IllegalArgumentException - If JobVertexID does not belong to job

IllegalArgumentException - If state has been registered with same name by another operator.

IndexOutOfBoundsException - If key group index is out of bounds.

notifyKvStateUnregistered

public void notifyKvStateUnregistered(JobVertexID jobVertexId,
                                      KeyGroupRange keyGroupRange,
                                      String registrationName)

Notifies the registry about an unregistered KvState instance.

参数:

jobVertexId - JobVertexID the KvState instance belongs to

keyGroupRange - Key group index the KvState instance belongs to

registrationName - Name under which the KvState has been registered

抛出:

IllegalArgumentException - If another operator registered the state instance

IllegalArgumentException - If the registration name is not known