org.apache.ignite.internal.processors.odbc

Interface ClientListenerRequestHandler

All Known Implementing Classes:

ClientRequestHandler, JdbcRequestHandler, OdbcRequestHandler

public interface ClientListenerRequestHandler

Client listener request handler.

Method Summary

Modifier and Type	Method and Description
ClientListenerResponse	handle(ClientListenerRequest req) Handle request.
ClientListenerResponse	handleException(Throwable e, ClientListenerRequest req) Handle exception.
boolean	isCancellationCommand(int cmdId) Detect whether given command is a cancellation command.
boolean	isCancellationSupported() Checks whether query cancellation is supported within given version of protocol.
ClientListenerProtocolVersion	protocolVersion()
void	registerRequest(long reqId, int cmdType) Registers request for futher cancellation if any.
void	unregisterRequest(long reqId) Try to unregister request.
void	writeHandshake(BinaryWriterExImpl writer) Write successful handshake response.

Method Detail

handle

ClientListenerResponse handle(ClientListenerRequest req)

Handle request.

Parameters:

req - Request.

Returns:

Response.

handleException

ClientListenerResponse handleException(Throwable e,
                                       ClientListenerRequest req)

Handle exception.

Parameters:

e - Exception.

req - Request.

Returns:

Error response.

writeHandshake

void writeHandshake(BinaryWriterExImpl writer)

Write successful handshake response.

Parameters:

writer - Binary writer.

isCancellationSupported

boolean isCancellationSupported()

Checks whether query cancellation is supported within given version of protocol.

Returns:

true if supported, false otherwise.

isCancellationCommand

boolean isCancellationCommand(int cmdId)

Detect whether given command is a cancellation command.

Parameters:

cmdId - Command Id

Returns:

true if given command is cancellation one, false otherwise;

registerRequest

void registerRequest(long reqId,
                     int cmdType)

Registers request for futher cancellation if any.

Parameters:

reqId - Request Id.

cmdType - Command Type.

unregisterRequest

void unregisterRequest(long reqId)

Try to unregister request.

Parameters:

reqId - Request Id.

protocolVersion

ClientListenerProtocolVersion protocolVersion()

Returns:

Protocol version.