@FunctionalInterface public interface KeyEventDispatcher
Note that KeyboardFocusManager itself implements KeyEventDispatcher. By default, the current KeyboardFocusManager will be the sink for all KeyEvents not dispatched by the registered KeyEventDispatchers. The current KeyboardFocusManager cannot be completely deregistered as a KeyEventDispatcher. However, if a KeyEventDispatcher reports that it dispatched the KeyEvent, regardless of whether it actually did so, the KeyboardFocusManager will take no further action with regard to the KeyEvent. (While it is possible for client code to register the current KeyboardFocusManager as a KeyEventDispatcher one or more times, this is usually unnecessary and not recommended.)
boolean dispatchKeyEvent(KeyEvent e)
redispatchEventto prevent the current KeyboardFocusManager from recursively requesting that this KeyEventDispatcher dispatch the event again.
If an implementation of this method returns
the KeyEvent is passed to the next KeyEventDispatcher in the chain,
ending with the current KeyboardFocusManager. If an implementation
true, the KeyEvent is assumed to have been
dispatched (although this need not be the case), and the current
KeyboardFocusManager will take no further action with regard to the
KeyEvent. In such a case,
KeyboardFocusManager.dispatchEvent should return
true as well. If an implementation consumes the KeyEvent,
false, the consumed event will still be passed
to the next KeyEventDispatcher in the chain. It is important for
developers to check whether the KeyEvent has been consumed before
dispatching it to a target. By default, the current KeyboardFocusManager
will not dispatch a consumed KeyEvent.
e- the KeyEvent to dispatch
trueif the KeyboardFocusManager should take no further action with regard to the KeyEvent;
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2017, Oracle and/or its affiliates. 500 Oracle Parkway
Redwood Shores, CA 94065 USA. All rights reserved.