AbstractSelectionKey

extends SelectionKey

java.lang.Object
↳	java.nio.channels.SelectionKey
	↳	java.nio.channels.spi.AbstractSelectionKey

Class Overview

Base implementation class for selection keys.

This class tracks the validity of the key and implements cancellation.

Inherited Constants

Protected Constructors
	AbstractSelectionKey() Initializes a new instance of this class.

Public Methods
final void	cancel() Cancels this key.
final boolean	isValid() Tells whether or not this key is valid.

Inherited Methods

final Object	attach(Object ob) Attaches the given object to this key.
final Object	attachment() Retrieves the current attachment.
abstract void	cancel() Requests that the registration of this key's channel with its selector be cancelled.
abstract SelectableChannel	channel() Returns the channel for which this key was created.
abstract int	interestOps() Retrieves this key's interest set.
abstract SelectionKey	interestOps(int ops) Sets this key's interest set to the given value.
final boolean	isAcceptable() Tests whether this key's channel is ready to accept a new socket connection.
final boolean	isConnectable() Tests whether this key's channel has either finished, or failed to finish, its socket-connection operation.
final boolean	isReadable() Tests whether this key's channel is ready for reading.
abstract boolean	isValid() Tells whether or not this key is valid.
final boolean	isWritable() Tests whether this key's channel is ready for writing.
abstract int	readyOps() Retrieves this key's ready-operation set.
abstract Selector	selector() Returns the selector for which this key was created.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Initializes a new instance of this class.

Cancels this key.

If this key has not yet been cancelled then it is added to its selector's cancelled-key set while synchronized on that set.

Tells whether or not this key is valid.

A key is valid upon creation and remains so until it is cancelled, its channel is closed, or its selector is closed.