com.alibaba.dubbo.rpc.protocol.injvm

Class InjvmProtocol

java.lang.Object

com.alibaba.dubbo.rpc.protocol.AbstractProtocol

com.alibaba.dubbo.rpc.protocol.injvm.InjvmProtocol

All Implemented Interfaces:

Protocol

public class InjvmProtocol
extends AbstractProtocol
implements Protocol

InjvmProtocol

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PORT
static String	NAME

Constructor Summary

Constructors

Constructor and Description
InjvmProtocol()

Method Summary

Modifier and Type	Method and Description
<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.
static InjvmProtocol	getInjvmProtocol()
boolean	isInjvmRefer(URL url)
<T> Invoker<T>	refer(Class<T> serviceType, URL url) Refer a remote service: 1.

Methods inherited from class com.alibaba.dubbo.rpc.protocol.AbstractProtocol

destroy

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.alibaba.dubbo.rpc.Protocol

destroy

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

DEFAULT_PORT

public static final int DEFAULT_PORT

See Also:

Constant Field Values

Constructor Detail

InjvmProtocol

public InjvmProtocol()

Method Detail

getInjvmProtocol

public static InjvmProtocol getInjvmProtocol()

getDefaultPort

public int getDefaultPort()

Description copied from interface: Protocol

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

Specified by:

getDefaultPort in interface Protocol

Returns:

default port

export

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

Description copied from interface: 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

Specified by:

export in interface Protocol

Type Parameters:

T - Service type

Parameters:

invoker - Service invoker

Returns:

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

Throws:

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

refer

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

Description copied from interface: 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.

Specified by:

refer in interface Protocol

Type Parameters:

T - Service type

Parameters:

serviceType - Service class

url - URL address for the remote service

Returns:

invoker service's local proxy

Throws:

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

isInjvmRefer

public boolean isInjvmRefer(URL url)