com.alibaba.dubbo.rpc.protocol

类 ProtocolFilterWrapper

java.lang.Object

com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper

所有已实现的接口:

Protocol

public class ProtocolFilterWrapper
extends Object
implements Protocol

ListenerProtocol

构造器概要

构造器

构造器和说明
ProtocolFilterWrapper(Protocol protocol)

方法概要

方法

限定符和类型	方法和说明
void	destroy() Destroy protocol: 1.
<T> Exporter<T>	export(Invoker<T> invoker) Export service for remote invocation: 1.
int	getDefaultPort() Get default port when user doesn't config the port.
<T> Invoker<T>	refer(Class<T> type, URL url) Refer a remote service: 1.

从类继承的方法 java.lang.Object

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

构造器详细资料

ProtocolFilterWrapper

public ProtocolFilterWrapper(Protocol protocol)

方法详细资料

getDefaultPort

public int getDefaultPort()

从接口复制的说明: Protocol

Get default port when user doesn't config the port.

指定者:

getDefaultPort 在接口中 Protocol

返回:

default port

export

public <T> Exporter<T> export(Invoker<T> invoker)
                   throws RpcException

从接口复制的说明: Protocol

Export service for remote invocation:
1. Protocol should record request source address after receive a request: RpcContext.getContext().setRemoteAddress();
2. export() must be idempotent, that is, there's no difference between invoking once and invoking twice when export the same URL
3. Invoker instance is passed in by the framework, protocol needs not to care

指定者:

export 在接口中 Protocol

类型参数:

T - Service type

参数:

invoker - Service invoker

返回:

exporter reference for exported service, useful for unexport the service later

抛出:

RpcException - thrown when error occurs during export the service, for example: port is occupied

refer

public <T> Invoker<T> refer(Class<T> type,
                   URL url)
                 throws RpcException

从接口复制的说明: Protocol

Refer a remote service:
1. When user calls `invoke()` method of `Invoker` object which's returned from `refer()` call, the protocol needs to correspondingly execute `invoke()` method of `Invoker` object
2. It's protocol's responsibility to implement `Invoker` which's returned from `refer()`. Generally speaking, protocol sends remote request in the `Invoker` implementation.
3. When there's check=false set in URL, the implementation must not throw exception but try to recover when connection fails.

指定者:

refer 在接口中 Protocol

类型参数:

T - Service type

参数:

type - Service class

url - URL address for the remote service

返回:

invoker service's local proxy

抛出:

RpcException - when there's any error while connecting to the service provider

destroy

public void destroy()

从接口复制的说明: Protocol

Destroy protocol:
1. Cancel all services this protocol exports and refers
2. Release all occupied resources, for example: connection, port, etc.
3. Protocol can continue to export and refer new service even after it's destroyed.

指定者:

destroy 在接口中 Protocol