File Doc Category Size Date Package
AbstractSelectionKey.java API Doc Java SE 5 API 1189 Fri Aug 26 14:57:10 BST 2005 java.nio.channels.spi

AbstractSelectionKey

java.lang.Object
- java.nio.channels.SelectionKey

public abstract class AbstractSelectionKey extends SelectionKey

Base implementation class for selection keys.

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

author: Mark Reinhold
author: JSR-51 Expert Group
version: 1.11, 03/12/19
since: 1.4

Fields Summary
private volatile boolean
valid
Constructors Summary
protected AbstractSelectionKey()
Initializes a new instance of this class.

Methods Summary
public final void cancel()
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.
if (valid) { valid = false; ((AbstractSelector)selector()).cancel(this); }
void invalidate()
// package-private valid = false;
public final boolean isValid()
return valid;