org.indi.reactor
Class SimpleEventHandler

java.lang.Object
  org.indi.reactor.SimpleEventHandler

All Implemented Interfaces:

EventHandler

Direct Known Subclasses:

Acceptor, Connector, OutputQueue

public class SimpleEventHandler
extends java.lang.Object
implements EventHandler

A minimal implementation of the EventHandler interface.

Author:

Dirk Hünniger

Field Summary

protected java.nio.channels.SelectableChannel	channel The channel the handler is associated with
protected Reactor	reactor the reactor the handler is registered with
protected int	registeredOperations bitmask of the operation the handler is registered for

Constructor Summary

SimpleEventHandler(Reactor r, java.nio.channels.SelectableChannel ch)
class constructor

Method Summary

java.nio.channels.SelectableChannel	channel()
void	onAccept() Called by the reactor whenever a new connection is ready to be accepted (passive connection establishment)
void	onClose() Called by the reactor when the handler is removed
void	onConnect() Called by the reactor whenever a new Connection is ready to be estabished (active connection establishment)
void	onRead() Called by the reactor whenever data is ready for reading.
void	onWrite() Called by the reactor whenever a connection is ready for writing
void	register(int ops) Register the handler with the reactor for certain IO events

Methods inherited from class java.lang.Object

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

Field Detail

channel

protected java.nio.channels.SelectableChannel channel

The channel the handler is associated with

reactor

protected Reactor reactor

the reactor the handler is registered with

registeredOperations

protected int registeredOperations

bitmask of the operation the handler is registered for

Constructor Detail

SimpleEventHandler

public SimpleEventHandler(Reactor r,
                          java.nio.channels.SelectableChannel ch)

class constructor

Parameters:

r - the reactor to register with

ch - the channel to use

Method Detail

register

public void register(int ops)

Description copied from interface: EventHandler

Register the handler with the reactor for certain IO events

Specified by:

register in interface EventHandler

Parameters:

ops - Bitmask descibing the events the handler is to be registered for

See Also:

EventHandler.register(int)

channel

public java.nio.channels.SelectableChannel channel()

Specified by:

channel in interface EventHandler

Returns:

the SelectableChannel for which this Handler is to be listening

See Also:

EventHandler.channel()

onRead

public void onRead()
            throws java.io.IOException

Description copied from interface: EventHandler

Called by the reactor whenever data is ready for reading.

Specified by:

onRead in interface EventHandler

Throws:

java.io.IOException

See Also:

EventHandler.onRead()

onAccept

public void onAccept()
              throws java.io.IOException,
                     java.nio.channels.ClosedChannelException

Description copied from interface: EventHandler

Called by the reactor whenever a new connection is ready to be accepted (passive connection establishment)

Specified by:

onAccept in interface EventHandler

Throws:

java.io.IOException

java.nio.channels.ClosedChannelException

See Also:

EventHandler.onAccept()

onConnect

public void onConnect()
               throws java.io.IOException

Description copied from interface: EventHandler

Called by the reactor whenever a new Connection is ready to be estabished (active connection establishment)

Specified by:

onConnect in interface EventHandler

Throws:

java.io.IOException

See Also:

EventHandler.onConnect()

onWrite

public void onWrite()
             throws java.io.IOException

Description copied from interface: EventHandler

Called by the reactor whenever a connection is ready for writing

Specified by:

onWrite in interface EventHandler

Throws:

java.io.IOException

See Also:

EventHandler.onWrite()

onClose

public void onClose()

Description copied from interface: EventHandler

Called by the reactor when the handler is removed

Specified by:

onClose in interface EventHandler

See Also:

EventHandler.onClose()