org.apache.hadoop.ipc

Interface ProtocolMetaInterface

All Known Implementing Classes:

ClientDatanodeProtocolTranslatorPB, ClientNamenodeProtocolTranslatorPB, DatanodeProtocolClientSideTranslatorPB, GetUserMappingsProtocolClientSideTranslatorPB, InterDatanodeProtocolTranslatorPB, JournalProtocolTranslatorPB, NamenodeProtocolTranslatorPB, QJournalProtocolTranslatorPB, RefreshAuthorizationPolicyProtocolClientSideTranslatorPB, RefreshUserMappingsProtocolClientSideTranslatorPB

@InterfaceAudience.Private
@InterfaceStability.Stable
public interface ProtocolMetaInterface

This interface is implemented by the client side translators and can be used to obtain information about underlying protocol e.g. to check if a method is supported on the server side.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isMethodSupported(String methodName) Checks whether the given method name is supported by the server.

Method Detail

isMethodSupported

boolean isMethodSupported(String methodName)
                          throws IOException

Checks whether the given method name is supported by the server. It is assumed that all method names are unique for a protocol.

Parameters:

methodName - The name of the method

Returns:

true if method is supported, otherwise false.

Throws:

IOException