public abstract class AbstractObservableValue extends AbstractObservable implements IObservableValue
This class is thread safe. All state accessing methods must be invoked from
the current realm. Methods for adding and removing
listeners may be invoked from any thread.
| Constructor and Description |
|---|
AbstractObservableValue()
Constructs a new instance with the default realm.
|
AbstractObservableValue(Realm realm) |
| Modifier and Type | Method and Description |
|---|---|
protected void |
addListener(Object listenerType,
IObservablesListener listener) |
void |
addValueChangeListener(IValueChangeListener listener) |
protected Object |
clone() |
protected abstract Object |
doGetValue() |
protected void |
doSetValue(Object value)
Template method for setting the value of the observable.
|
protected void |
fireChange() |
protected void |
fireEvent(ObservableEvent event) |
protected void |
fireValueChange(ValueDiff diff) |
protected void |
firstListenerAdded() |
Realm |
getRealm() |
Object |
getValue()
Returns the value.
|
protected boolean |
hasListeners() |
boolean |
isStale()
Returns whether the state of this observable is stale and is expected to
change soon.
|
protected void |
lastListenerRemoved() |
protected void |
removeListener(Object listenerType,
IObservablesListener listener) |
void |
removeValueChangeListener(IValueChangeListener listener) |
void |
setValue(Object value)
Sets the value.
|
addChangeListener, addDisposeListener, addStaleListener, checkRealm, dispose, fireStale, isDisposed, removeChangeListener, removeDisposeListener, removeStaleListenerequals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetValueTypeaddChangeListener, addDisposeListener, addStaleListener, dispose, getRealm, isDisposed, removeChangeListener, removeDisposeListener, removeStaleListenerpublic AbstractObservableValue()
public AbstractObservableValue(Realm realm)
realm - public void addValueChangeListener(IValueChangeListener listener)
addValueChangeListener in interface IObservableValuepublic void removeValueChangeListener(IValueChangeListener listener)
removeValueChangeListener in interface IObservableValuepublic final void setValue(Object value)
IObservableValueRealm of the observable.setValue in interface IObservableValuevalue - the value to setprotected void doSetValue(Object value)
UnsupportedOperationException.value - protected void fireValueChange(ValueDiff diff)
public final Object getValue()
IObservableValueRealm of the observable.getValue in interface IObservableValueprotected abstract Object doGetValue()
public boolean isStale()
IObservableisStale in interface IObservableprotected void fireChange()
fireChange in class AbstractObservableprotected void addListener(Object listenerType, IObservablesListener listener)
listenerType - listener - protected void removeListener(Object listenerType, IObservablesListener listener)
listenerType - listener - protected boolean hasListeners()
protected void fireEvent(ObservableEvent event)
protected void firstListenerAdded()
protected void lastListenerRemoved()
public Realm getRealm()
protected Object clone() throws CloneNotSupportedException
clone in class ObjectCloneNotSupportedException
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