Android - An Open Handset Alliance Project

java.nio.channels.spi
public abstract class

java.nio.channels.spi.AbstractSelector

java.lang.Object
	java.nio.channels.Selector
		java.nio.channels.spi.AbstractSelector

Abstract class for selectors.

This class realizes the interruption of selection by begin and end. It also holds the cancelled and the deletion of the key set.

Summary

Protected Constructors

					AbstractSelector(SelectorProvider selectorProvider)
					Constructor for this class.

Public Methods

synchronized	final	void	close()
			Closes this channel.
	final	boolean	isOpen()
			Tells whether this selector is open.
	final	SelectorProvider	provider()
			Answers the SelectorProvider of this channel.

Protected Methods

	final	void	begin()
			This starts a potentially blocking I/O operation
	final	Set	cancelledKeys()
			Answers the cancelled key set of this channel.
	final	void	deregister(AbstractSelectionKey key)
			Deletes the key from channel's key set.
	final	void	end()
			This ends a potentially blocking I/O operation
abstract		void	implCloseSelector()
			Implements the closing of this channel.
abstract		SelectionKey	register(AbstractSelectableChannel channel, int operations, Object attachment)
			Registers a channel to this selector.

Methods inherited from class java.nio.channels.Selector

close, isOpen, keys, open, provider, select, select, selectNow, selectedKeys, wakeup

abstract		void	close()
			Closes this selector.
abstract		boolean	isOpen()
			Tells whether this selector is open.
abstract		Set	keys()
			Gets the set of registered keys.
	static	Selector	open()
			The factory method for selector.
abstract		SelectorProvider	provider()
			Gets the provider of this selector.
abstract		int	select()
			Detects if any of the registered channels are ready for I/O operations according to their interesting operation.
abstract		int	select(long timeout)
			Detects if any of the registered channels are ready for I/O operations according to their interesting operation.This operation will not return until some of the channels are ready or wakeup is invoked or timeout expired.
abstract		int	selectNow()
			Detects if any of the registered channels are ready for I/O operations according to their interesting operation.This operation will not return immediately.
abstract		Set	selectedKeys()
			Gets the keys whose channels are ready for operation.
abstract		Selector	wakeup()
			Forces the blocked select operation to return immediately.

Methods inherited from class java.lang.Object

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

	Object	clone()
		Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
	boolean	equals(Object o)
		Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
	void	finalize()
		Called by the virtual machine when there are no longer any (non-weak) references to the receiver.
final	Class	getClass()
		Answers the unique instance of java.lang.Class which represents the class of the receiver.
	int	hashCode()
		Answers an integer hash code for the receiver.
final	void	notify()
		Causes one thread which is `wait` ing on the receiver to be made ready to run.
final	void	notifyAll()
		Causes all threads which are `wait` ing on the receiver to be made ready to run.
	String	toString()
		Answers a string containing a concise, human-readable description of the receiver.
final	void	wait(long time, int frac)
		Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final	void	wait(long time)
		Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by `notify` or `notifyAll`) or the expiration of the timeout.
final	void	wait()
		Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by `notify` or `notifyAll`).

Details

Protected Constructors

protected AbstractSelector(SelectorProvider selectorProvider)

Constructor for this class.

Parameters

selectorProvider	A instance of SelectorProvider

Public Methods

public final synchronized void close()

Closes this channel.

Throws

IOException

public final boolean isOpen()

Tells whether this selector is open.

public final SelectorProvider provider()

Answers the SelectorProvider of this channel.

Protected Methods

protected final void begin()

This starts a potentially blocking I/O operation

protected final Set cancelledKeys()

Answers the cancelled key set of this channel.

Returns

The cancelled key set.

protected final void deregister(AbstractSelectionKey key)

Deletes the key from channel's key set.

Parameters

key	The key.

protected final void end()

This ends a potentially blocking I/O operation

protected abstract void implCloseSelector()

Implements the closing of this channel.

Throws

IOException	If some I/O exception occurs.

protected abstract SelectionKey register(AbstractSelectableChannel channel, int operations, Object attachment)

Registers a channel to this selector.

Parameters

channel	The channel to be registered.
operations	The interest set.
attachment	The attachment of the key.

Returns

The key related with the channel and the selector.

Android - An Open Handset Alliance Project

Documentation

Goodies

java.nio.channels.spi.AbstractSelector

Summary

Protected Constructors

Public Methods

Protected Methods

Methods inherited from class java.nio.channels.Selector

Methods inherited from class java.lang.Object

Details

Protected Constructors

protected AbstractSelector(SelectorProvider selectorProvider)

Parameters

Public Methods

public final synchronized void close()

Throws

See Also

public final boolean isOpen()

See Also

public final SelectorProvider provider()

See Also

Protected Methods

protected final void begin()

protected final Set cancelledKeys()

Returns

protected final void deregister(AbstractSelectionKey key)

Parameters

protected final void end()

protected abstract void implCloseSelector()

Throws

protected abstract SelectionKey register(AbstractSelectableChannel channel, int operations, Object attachment)

Parameters

Returns


e.g. "intent" or "activity"