org.eclipse.jetty.io

Class FillInterest

java.lang.Object

org.eclipse.jetty.io.FillInterest

public abstract class FillInterest
extends Object

A Utility class to help implement EndPoint.fillInterested(Callback) by keeping state and calling the context and callback objects.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FillInterest()

Method Summary

Methods

Modifier and Type	Method and Description
void	fillable() Call to signal that a read is now possible.
boolean	isInterested()
protected abstract boolean	needsFill() Register the read interest Abstract method to be implemented by the Specific ReadInterest to enquire if a read is immediately possible and if not to schedule a future call to fillable() or onFail(Throwable)
void	onClose()
boolean	onFail(Throwable cause) Call to signal a failure to a registered interest
<C> void	register(Callback callback) Call to register interest in a callback when a read is possible.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FillInterest

protected FillInterest()

Method Detail

register

public <C> void register(Callback callback)
              throws ReadPendingException

Call to register interest in a callback when a read is possible. The callback will be called either immediately if needsFill() returns true or eventually once fillable() is called.

Parameters:

callback -

Throws:

ReadPendingException

fillable

public void fillable()

Call to signal that a read is now possible.

isInterested

public boolean isInterested()

Returns:

True if a read callback has been registered

onFail

public boolean onFail(Throwable cause)

Call to signal a failure to a registered interest

Returns:

true if the cause was passed to a Callback instance

onClose

public void onClose()

toString

public String toString()

Overrides:

toString in class Object

needsFill

protected abstract boolean needsFill()
                              throws IOException

Register the read interest Abstract method to be implemented by the Specific ReadInterest to enquire if a read is immediately possible and if not to schedule a future call to fillable() or onFail(Throwable)

Returns:

true if a read is possible

Throws:

IOException