org.jacorb.util

Class SelectorRequestCallback

java.lang.Object

org.jacorb.util.SelectorRequestCallback

public abstract class SelectorRequestCallback
extends Object

Base class for the callback handlers to be suppied to the SelectorRequest object. You supply an implementation of the call method.

Author:

Ciju John <johnc@ociweb.com>

Constructor Summary

Constructors

Constructor and Description
SelectorRequestCallback()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract boolean	call(SelectorRequest action) called when the registered event occurs.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectorRequestCallback

public SelectorRequestCallback()

Method Detail

call

protected abstract boolean call(SelectorRequest action)

called when the registered event occurs. It is called in the SelectorManager thread, so it should be a non-blocking call. It should be used only to retrieve or send whatever can be right away. If more needs to be done then a subsequent call can handle that.

Parameters:

action - is the SelectorRequest that triggered the callback

Returns:

true if more waiting is required, in which case the SelectorRequest will stay in the pool. A return of fall indicates that the Selector request may be cleaned up.