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public interface IoHandler
Handles all I/O events fired by IoAcceptor
and IoConnector
.
There are 6 event handler methods, and they are all invoked by MINA
automatically. Most users of MINA I/O package will be OK with this single
interface to implement their protocols.
Please refer to
EchoProtocolHandler
example.
IoHandlerAdapter
Method Summary | |
---|---|
void |
dataRead(IoSession session,
ByteBuffer buf)
Invoked when data is read from the connection. |
void |
dataWritten(IoSession session,
Object marker)
Invoked when MINA wrote IoSession.write(ByteBuffer, Object)
request successfully. |
void |
exceptionCaught(IoSession session,
Throwable cause)
Invoked when any exception is thrown by user IoHandler
implementation or by MINA. |
void |
sessionClosed(IoSession session)
Invoked when the connection is closed. |
void |
sessionCreated(IoSession session)
Invoked when the session is created. |
void |
sessionIdle(IoSession session,
IdleStatus status)
Invoked when the connection is idle. |
void |
sessionOpened(IoSession session)
Invoked when the connection is opened. |
Method Detail |
---|
void sessionCreated(IoSession session) throws Exception
Exception
void sessionOpened(IoSession session) throws Exception
Exception
void sessionClosed(IoSession session) throws Exception
Exception
void sessionIdle(IoSession session, IdleStatus status) throws Exception
IdleStatus
. This
method is not invoked if the transport type is UDP.
Exception
void exceptionCaught(IoSession session, Throwable cause) throws Exception
IoHandler
implementation or by MINA. If cause
is instanceof
IOException
, MINA will close the connection automatically.
Exception
void dataRead(IoSession session, ByteBuffer buf) throws Exception
buf
to get read data. buf
returns to
the internal buffer pool of MINA after this method is invoked, so
please don't try to reuse it.
Exception
void dataWritten(IoSession session, Object marker) throws Exception
IoSession.write(ByteBuffer, Object)
request successfully. marker
is what you specified at the
point of invocation of IoSession.write(ByteBuffer, Object)
.
Exception
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