程序包 com.mysql.cj.protocol

接口 MessageSender<M extends Message>

类型参数:

M - Message type

所有已知实现类:

CompressedPacketSender, DebugBufferingPacketSender, SimplePacketSender, SyncMessageSender, TimeTrackingPacketSender, TracingPacketSender

public interface MessageSender<M extends Message>

This interface provides a facility for sending messages to server. The destination, transmission method, etc are determined by the implementation.

方法概要

修饰符和类型	方法	说明
default void	send(byte[] message, int messageLen, byte messageSequence)	Synchronously send the message to server.
default void	send(M message)	Synchronously send the message to server.
default CompletableFuture<?>	send(M message, CompletableFuture<?> future, Runnable callback)	Asynchronously write a message with a notification being delivered to callback upon completion of write of entire message.
default void	setMaxAllowedPacket(int maxAllowedPacket)	Set max allowed packet size.
default MessageSender<M>	undecorate()	Return the previous PacketSender instance from the decorators chain or the current PacketSender if it is the first entry in a chain.
default MessageSender<M>	undecorateAll()	Return a PacketSender instance free of decorators.

方法详细资料

send

default void send(byte[] message,
                  int messageLen,
                  byte messageSequence)
           throws IOException

Synchronously send the message to server.

参数:

message - byte array containing a message

messageLen - length of the message

messageSequence - message sequence index (used in a native protocol)

抛出:

IOException - if an error occurs

send

default void send(M message)

Synchronously send the message to server.

参数:

message - Message instance

send

default CompletableFuture<?> send(M message,
                                  CompletableFuture<?> future,
                                  Runnable callback)

Asynchronously write a message with a notification being delivered to callback upon completion of write of entire message.

参数:

message - message extending Message

future - a Future returning operation result

callback - a callback to receive notification of when the message is completely written

返回:

result

setMaxAllowedPacket

default void setMaxAllowedPacket(int maxAllowedPacket)

Set max allowed packet size.

参数:

maxAllowedPacket - max allowed packet size

undecorateAll

default MessageSender<M> undecorateAll()

Return a PacketSender instance free of decorators.

返回:

MessageSender instance

undecorate

default MessageSender<M> undecorate()

Return the previous PacketSender instance from the decorators chain or the current PacketSender if it is the first entry in a chain.

返回:

MessageSender instance