io.lettuce.core.pubsub

Class PubSubCommandHandler<K,V>

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

io.lettuce.core.protocol.CommandHandler

io.lettuce.core.pubsub.PubSubCommandHandler<K,V>

Type Parameters:

K - Key type.

V - Value type.

All Implemented Interfaces:

ChannelHandler, ChannelInboundHandler, ChannelOutboundHandler

public class PubSubCommandHandler<K,V>
extends CommandHandler

A netty ChannelHandler responsible for writing redis pub/sub commands and reading the response stream from the server.

Author:

Will Glozer, Mark Paluch

Nested Class Summary

Nested classes/interfaces inherited from class io.lettuce.core.protocol.CommandHandler

CommandHandler.LifecycleState

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
PubSubCommandHandler(ClientOptions clientOptions, ClientResources clientResources, RedisCodec<K,V> codec, PubSubEndpoint<K,V> endpoint) Initialize a new instance.

Method Summary

Modifier and Type	Method and Description
protected void	afterComplete(ChannelHandlerContext ctx, RedisCommand<?,?,?> command) Hook method called after command completion.
protected boolean	canDecode(ByteBuf buffer)
protected void	decode(ChannelHandlerContext ctx, ByteBuf buffer)

Methods inherited from class io.lettuce.core.protocol.CommandHandler

channelActive, channelInactive, channelRead, channelRegistered, channelUnregistered, decode, decode, drainQueue, exceptionCaught, getStack, getState, isClosed, setState, userEventTriggered, write

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, connect, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelWritabilityChanged

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Detail

PubSubCommandHandler

public PubSubCommandHandler(ClientOptions clientOptions,
                            ClientResources clientResources,
                            RedisCodec<K,V> codec,
                            PubSubEndpoint<K,V> endpoint)

Initialize a new instance.

Parameters:

clientOptions - client options for this connection, must not be null

clientResources - client resources for this connection

codec - Codec.

endpoint - the Pub/Sub endpoint for Pub/Sub callback.

Method Detail

decode

protected void decode(ChannelHandlerContext ctx,
                      ByteBuf buffer)
               throws InterruptedException

Overrides:

decode in class CommandHandler

Throws:

InterruptedException

canDecode

protected boolean canDecode(ByteBuf buffer)

Overrides:

canDecode in class CommandHandler

afterComplete

protected void afterComplete(ChannelHandlerContext ctx,
                             RedisCommand<?,?,?> command)

Description copied from class: CommandHandler

Hook method called after command completion.

Overrides:

afterComplete in class CommandHandler