private static class SetExpression.EmptyObservableSet<E> extends java.util.AbstractSet<E> implements ObservableSet<E>
| Modifier and Type | Method and Description |
|---|---|
void |
addListener(InvalidationListener listener)
Adds an
InvalidationListener which will be notified whenever the
Observable becomes invalid. |
void |
addListener(SetChangeListener<? super E> setChangeListener)
Add a listener to this observable set.
|
java.util.Iterator<E> |
iterator() |
void |
removeListener(InvalidationListener listener)
Removes the given listener from the list of listeners, that are notified
whenever the value of the
Observable becomes invalid. |
void |
removeListener(SetChangeListener<? super E> setChangeListener)
Tries to removed a listener from this observable set.
|
int |
size() |
add, addAll, clear, contains, containsAll, isEmpty, remove, retainAll, toArray, toArray, toStringpublic java.util.Iterator<E> iterator()
public int size()
public void addListener(SetChangeListener<? super E> setChangeListener)
ObservableSetaddListener in interface ObservableSet<E>setChangeListener - the listener for listening to the set changespublic void removeListener(SetChangeListener<? super E> setChangeListener)
ObservableSetremoveListener in interface ObservableSet<E>setChangeListener - a listener to removepublic void addListener(InvalidationListener listener)
ObservableInvalidationListener which will be notified whenever the
Observable becomes invalid. If the same
listener is added more than once, then it will be notified more than
once. That is, no check is made to ensure uniqueness.
Note that the same actual InvalidationListener instance may be
safely registered for different Observables.
The Observable stores a strong reference to the listener
which will prevent the listener from being garbage collected and may
result in a memory leak. It is recommended to either unregister a
listener by calling removeListener after use or to use an instance of
WeakInvalidationListener avoid this situation.
addListener in interface Observablelistener - The listener to registerObservable.removeListener(InvalidationListener)public void removeListener(InvalidationListener listener)
ObservableObservable becomes invalid.
If the given listener has not been previously registered (i.e. it was never added) then this method call is a no-op. If it had been previously added then it will be removed. If it had been added more than once, then only the first occurrence will be removed.
removeListener in interface Observablelistener - The listener to removeObservable.addListener(InvalidationListener)Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms.