org.apache.flink.queryablestate.server

类 KvStateServerHandler

java.lang.Object

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

org.apache.flink.queryablestate.server.KvStateServerHandler

所有已实现的接口:

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler, org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler

@Internal
 @ChannelHandler.Sharable
public class KvStateServerHandler
extends org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

This handler dispatches asynchronous tasks, which query InternalKvState instances and write the result to the channel.

The network threads receive the message, deserialize it and dispatch the query task. The actual query is handled in a separate thread as it might otherwise block the network threads (file I/O etc.).

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler.Sharable

字段概要

从类继承的字段 org.apache.flink.queryablestate.network.AbstractServerHandler

queryExecutor

构造器概要

构造器

构造器和说明
KvStateServerHandler(KvStateServerImpl server, org.apache.flink.runtime.query.KvStateRegistry kvStateRegistry, org.apache.flink.queryablestate.network.messages.MessageSerializer<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse> serializer, org.apache.flink.queryablestate.network.stats.KvStateRequestStats stats) Create the handler used by the KvStateServerImpl.

方法概要

限定符和类型	方法和说明
CompletableFuture<org.apache.flink.queryablestate.messages.KvStateResponse>	handleRequest(long requestId, KvStateInternalRequest request)
CompletableFuture<Void>	shutdown()

从类继承的方法 org.apache.flink.queryablestate.network.AbstractServerHandler

channelActive, channelInactive, channelRead, exceptionCaught, getServerName

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

从类继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

构造器详细资料

KvStateServerHandler

public KvStateServerHandler(KvStateServerImpl server,
                            org.apache.flink.runtime.query.KvStateRegistry kvStateRegistry,
                            org.apache.flink.queryablestate.network.messages.MessageSerializer<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse> serializer,
                            org.apache.flink.queryablestate.network.stats.KvStateRequestStats stats)

Create the handler used by the KvStateServerImpl.

参数:

server - the KvStateServerImpl using the handler.

kvStateRegistry - registry to query.

serializer - the MessageSerializer used to (de-) serialize the different messages.

stats - server statistics collector.

方法详细资料

handleRequest

public CompletableFuture<org.apache.flink.queryablestate.messages.KvStateResponse> handleRequest(long requestId,
                                                                                                 KvStateInternalRequest request)

指定者:

handleRequest 在类中 org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

shutdown

public CompletableFuture<Void> shutdown()

指定者:

shutdown 在类中 org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>