程序包 com.mysql.cj.protocol.x

类 SyncMessageReader

java.lang.Object

com.mysql.cj.protocol.x.SyncMessageReader

所有已实现的接口:

MessageReader<XMessageHeader,XMessage>

public class SyncMessageReader
extends Object
implements MessageReader<XMessageHeader,XMessage>

Synchronous-only implementation of MessageReader. This implementation wraps a InputStream.

构造器概要

构造器

构造器	说明
SyncMessageReader(FullReadInputStream inputStream, Protocol.ProtocolEventHandler protocolEventHandler)

方法概要

修饰符和类型	方法	说明
int	getNextNonNoticeMessageType()
void	pushMessageListener(MessageListener<XMessage> listener)	Queue a MessageListener to receive messages delivered asynchronously.
XMessageHeader	readHeader()	Read the next message header from server, possibly blocking indefinitely until the message is received.
XMessage	readMessage(Optional<XMessage> reuse, int expectedType)	Read message from server into to the given Message instance or into the new one if not present.
XMessage	readMessage(Optional<XMessage> reuse, XMessageHeader hdr)	Read message from server into to the given Message instance or into the new one if not present.

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.mysql.cj.protocol.MessageReader

getMessageSequence, probeHeader, probeMessage, resetMessageSequence, start, stopAfterNextMessage, undecorate, undecorateAll

构造器详细资料

SyncMessageReader

public SyncMessageReader(FullReadInputStream inputStream,
                         Protocol.ProtocolEventHandler protocolEventHandler)

方法详细资料

readHeader

public XMessageHeader readHeader()
                          throws IOException

从接口复制的说明: MessageReader

Read the next message header from server, possibly blocking indefinitely until the message is received.

指定者:

readHeader 在接口中 MessageReader<XMessageHeader,XMessage>

返回:

MessageHeader of the next message

抛出:

IOException - if an error occurs

getNextNonNoticeMessageType

public int getNextNonNoticeMessageType()
                                throws IOException

抛出:

IOException

readMessage

public XMessage readMessage(Optional<XMessage> reuse,
                            XMessageHeader hdr)
                     throws IOException

从接口复制的说明: MessageReader

Read message from server into to the given Message instance or into the new one if not present. For asynchronous channel it synchronously reads the next message in the stream, blocking until the message is read fully. Could throw CJCommunicationsException wrapping an IOException during read or parse

指定者:

readMessage 在接口中 MessageReader<XMessageHeader,XMessage>

参数:

reuse - Message object to reuse. May be ignored by implementation.

hdr - MessageHeader instance

返回:

Message instance

抛出:

IOException - if an error occurs

readMessage

public XMessage readMessage(Optional<XMessage> reuse,
                            int expectedType)
                     throws IOException

从接口复制的说明: MessageReader

Read message from server into to the given Message instance or into the new one if not present. For asynchronous channel it synchronously reads the next message in the stream, blocking until the message is read fully. Could throw WrongArgumentException if the expected message type is not the next message (exception will be thrown in *caller* context).

指定者:

readMessage 在接口中 MessageReader<XMessageHeader,XMessage>

参数:

reuse - Message object to reuse. May be ignored by implementation.

expectedType - Expected type of message.

返回:

Message instance

抛出:

IOException - if an error occurs

pushMessageListener

public void pushMessageListener(MessageListener<XMessage> listener)

从接口复制的说明: MessageReader

Queue a MessageListener to receive messages delivered asynchronously.

指定者:

pushMessageListener 在接口中 MessageReader<XMessageHeader,XMessage>

参数:

listener - MessageListener