T - actual array instance typepublic abstract class ObservableArrayBase<T extends ObservableArray<T>> extends Object implements ObservableArray<T>
ObservableArray implementations.
The base class provides listener handling functionality by implementing
addListener and removeListener methods.
fireChange(boolean, int, int) method is provided
for notifying the listeners.ObservableArray,
ArrayChangeListener| Constructor and Description |
|---|
ObservableArrayBase() |
| Modifier and Type | Method and Description |
|---|---|
void |
addListener(ArrayChangeListener<T> listener)
Add a listener to this observable array.
|
void |
addListener(InvalidationListener listener)
Adds an
InvalidationListener which will be notified whenever the
Observable becomes invalid. |
protected void |
fireChange(boolean sizeChanged,
int from,
int to)
Notifies all listeners of a change
|
void |
removeListener(ArrayChangeListener<T> listener)
Tries to remove a listener from this observable array.
|
void |
removeListener(InvalidationListener listener)
Removes the given listener from the list of listeners, that are notified
whenever the value of the
Observable becomes invalid. |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitclear, ensureCapacity, resize, size, trimToSizepublic final 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 final 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)public final void addListener(ArrayChangeListener<T> listener)
ObservableArrayaddListener in interface ObservableArray<T extends ObservableArray<T>>listener - the listener for listening to the array changespublic final void removeListener(ArrayChangeListener<T> listener)
ObservableArrayremoveListener in interface ObservableArray<T extends ObservableArray<T>>listener - a listener to removeprotected final void fireChange(boolean sizeChanged,
int from,
int to)
change - 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.
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