tech.ydb.core.impl.call

Class ReadStreamCall<ReqT,RespT>

java.lang.Object

io.grpc.ClientCall.Listener<RespT>

tech.ydb.core.impl.call.ReadStreamCall<ReqT,RespT>

Type Parameters:

ReqT - type of call argument

RespT - type of read stream messages

All Implemented Interfaces:

GrpcReadStream<RespT>

public class ReadStreamCall<ReqT,RespT>
extends io.grpc.ClientCall.Listener<RespT>
implements GrpcReadStream<RespT>

Author:

Aleksandr Gorshenin

Nested Class Summary

Nested classes/interfaces inherited from interface tech.ydb.core.grpc.GrpcReadStream

GrpcReadStream.Observer<R>

Constructor Summary

Constructors

Constructor and Description
ReadStreamCall(String traceId, io.grpc.ClientCall<ReqT,RespT> call, ReqT request, io.grpc.Metadata headers, GrpcStatusHandler statusConsumer)

Method Summary

Modifier and Type	Method and Description
void	cancel() Prevent any further processing for this GrpcReadStream.
void	onClose(io.grpc.Status status, io.grpc.Metadata trailers)
void	onMessage(RespT message)
CompletableFuture<Status>	start(GrpcReadStream.Observer<RespT> observer) Start a stream, using observer for processing response messages.

Methods inherited from class io.grpc.ClientCall.Listener

onHeaders, onReady

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadStreamCall

public ReadStreamCall(String traceId,
                      io.grpc.ClientCall<ReqT,RespT> call,
                      ReqT request,
                      io.grpc.Metadata headers,
                      GrpcStatusHandler statusConsumer)

Method Detail

start

public CompletableFuture<Status> start(GrpcReadStream.Observer<RespT> observer)

Description copied from interface: GrpcReadStream

Start a stream, using observer for processing response messages. Returns future with the stream finish status.

Specified by:

start in interface GrpcReadStream<RespT>

Parameters:

observer - receives response messages

Returns:

future with the stream finish status

cancel

public void cancel()

Description copied from interface: GrpcReadStream

Prevent any further processing for this GrpcReadStream. No further messages may be sent or will be received. The server is informed of cancellations, but may not stop processing the call. The future for the stream finish status will be completed with CANCELLED code

Specified by:

cancel in interface GrpcReadStream<RespT>

onMessage

public void onMessage(RespT message)

Overrides:

onMessage in class io.grpc.ClientCall.Listener<RespT>

onClose

public void onClose(io.grpc.Status status,
                    @Nullable
                    io.grpc.Metadata trailers)

Overrides:

onClose in class io.grpc.ClientCall.Listener<RespT>