Package Summary Overview Summary

### class:AbstractSelectionKey [NONE]
public abstract class AbstractSelectionKey extends SelectionKey Base implementation class for selection keys. This class tracks the validity of the key and implements cancellation. Since: 1.4

### constructor:AbstractSelectionKey() [NONE]
### AbstractSelectionKey protected AbstractSelectionKey() Initializes a new instance of this class.

### method:isValid() [NONE]
### isValid public final boolean isValid() Description copied from class: `SelectionKey` 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. Specified by: `isValid` in class `SelectionKey` Returns: `true` if, and only if, this key is valid

### method:cancel() [NONE]
### cancel 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. Specified by: `cancel` in class `SelectionKey`