org.apache.hadoop.ipc

Class ProtocolProxy<T>

java.lang.Object

org.apache.hadoop.ipc.ProtocolProxy<T>

public class ProtocolProxy<T>
extends Object

a class wraps around a server's proxy, containing a list of its supported methods. A list of methods with a value of null indicates that the client and server have the same protocol.

Constructor Summary

Constructors

Constructor and Description
ProtocolProxy(Class<T> protocol, T proxy, boolean supportServerMethodCheck) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
T	getProxy()
boolean	isMethodSupported(String methodName, Class<?>... parameterTypes) Check if a method is supported by the server or not

Methods inherited from class java.lang.Object

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

Constructor Detail

ProtocolProxy

public ProtocolProxy(Class<T> protocol,
             T proxy,
             boolean supportServerMethodCheck)

Constructor

Parameters:

protocol - protocol class

proxy - its proxy

supportServerMethodCheck - If false proxy will never fetch server methods and isMethodSupported will always return true. If true, server methods will be fetched for the first call to isMethodSupported.

Method Detail

getProxy

public T getProxy()

isMethodSupported

public boolean isMethodSupported(String methodName,
                        Class<?>... parameterTypes)
                          throws IOException

Check if a method is supported by the server or not

Parameters:

methodName - a method's name in String format

parameterTypes - a method's parameter types

Returns:

true if the method is supported by the server

Throws:

IOException