org.apache.ratis.client.api

接口 DataStreamApi

所有超级接口:

AutoCloseable, Closeable

所有已知子接口:

DataStreamClient, DataStreamRpcApi

所有已知实现类:

DataStreamClientImpl

public interface DataStreamApi
extends Closeable

Stream data asynchronously to all the servers in the RaftGroup. Clients may stream data to the nearest server and then the server will forward the data to the other servers. Once all the servers have received all the data of a request, the leader (may or may not be the nearest server) creates a log entry with a data ID generated by the state machine. Then, the leader sends the log entry to the followers. Since the followers already have received the data from the stream, they may lookup the data from the ID. Since this API allows clients to send data to the nearest server which is not necessarily the leader, this API is more efficient for network-topology-aware clusters than the other APIs that require clients to send data/messages to the leader. Note that this API is different from MessageStreamApi in the sense that this API streams data to all the servers in the RaftGroup but MessageStreamApi streams messages only to the leader.

方法概要

限定符和类型	方法和说明
default DataStreamOutput	stream() Create a stream to write data.
DataStreamOutput	stream(ByteBuffer headerMessage) Create a stream by providing a customized header message.
DataStreamOutput	stream(ByteBuffer headerMessage, RoutingTable routingTable) Create a stream by providing a customized header message and route table.

从接口继承的方法 java.io.Closeable

close

方法详细资料

stream

default DataStreamOutput stream()

Create a stream to write data.

stream

DataStreamOutput stream(ByteBuffer headerMessage)

Create a stream by providing a customized header message.

stream

DataStreamOutput stream(ByteBuffer headerMessage,
                        RoutingTable routingTable)

Create a stream by providing a customized header message and route table.