org.eclipse.core.databinding.observable
Class AbstractObservable
java.lang.Object
org.eclipse.core.databinding.observable.AbstractObservable
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All Implemented Interfaces:
-
IObservable
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Direct Known Subclasses:
-
AbstractObservableSet,
AbstractObservableValue,
DecoratingObservable,
ObservableList,
ObservableMap,
ObservableSet
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public abstract class AbstractObservable
- extends
Object
- implements
IObservable
-
Since:
- 1.0
AbstractObservable
public AbstractObservable(
Realm realm)
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Parameters:
-
realm
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addChangeListener
public void addChangeListener(
IChangeListener listener)
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Description copied from interface:
IObservable
- Adds the given change listener to the list of change listeners. Change
listeners are notified about changes of the state of this observable in a
generic way, without specifying the change that happened. To get the
changed state, a change listener needs to query for the current state of
this observable.
-
-
Specified by:
-
addChangeListener
in interface
IObservable
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removeChangeListener
public void removeChangeListener(
IChangeListener listener)
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Description copied from interface:
IObservable
- Removes the given change listener from the list of change listeners. Has
no effect if the given listener is not registered as a change listener.
-
-
Specified by:
-
removeChangeListener
in interface
IObservable
-
addStaleListener
public void addStaleListener(
IStaleListener listener)
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Description copied from interface:
IObservable
- Adds the given stale listener to the list of stale listeners. Stale
listeners are notified when an observable object becomes stale, not when
is becomes non-stale.
-
-
Specified by:
-
addStaleListener
in interface
IObservable
-
-
See Also:
-
IObservable.isStale()
removeStaleListener
public void removeStaleListener(
IStaleListener listener)
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Description copied from interface:
IObservable
- Removes the given stale listener from the list of stale listeners. Has no
effect if the given listener is not registered as a stale listener.
-
-
Specified by:
-
removeStaleListener
in interface
IObservable
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addDisposeListener
public void addDisposeListener(
IDisposeListener listener)
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Description copied from interface:
IObservable
- Adds the given dispose listener to the list of dispose listeners. Dispose
listeners are notified when an observable has been disposed.
-
-
Specified by:
-
addDisposeListener
in interface
IObservable
-
-
Parameters:
-
listener
- the listener to add -
Since:
- 1.2
removeDisposeListener
public void removeDisposeListener(
IDisposeListener listener)
-
Description copied from interface:
IObservable
- Removes the given dispose listener from the list of dispose listeners.
Has no effect if the given listener is not registered as a dispose
listener.
-
-
Specified by:
-
removeDisposeListener
in interface
IObservable
-
-
Parameters:
-
listener
- the listener to remove -
Since:
- 1.2
fireChange
protected void fireChange()
-
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fireStale
protected void fireStale()
-
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isDisposed
public boolean isDisposed()
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Description copied from interface:
IObservable
- Returns whether the observable has been disposed
-
-
Specified by:
-
isDisposed
in interface
IObservable
-
-
Returns:
- whether the observable has been disposed
-
Since:
- 1.2
dispose
public void dispose()
-
Description copied from interface:
IObservable
- Disposes of this observable object, removing all listeners registered
with this object, and all listeners this object might have registered on
other objects.
-
-
Specified by:
-
dispose
in interface
IObservable
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checkRealm
protected void checkRealm()
- Asserts that the realm is the current realm.
-
-
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Throws:
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AssertionFailedException
- if the realm is not the current realm -
See Also:
-
Realm.isCurrent()
addListener
protected void addListener(
Object listenerType,
IObservablesListener listener)
-
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Parameters:
-
listenerType
- -
listener
-
removeListener
protected void removeListener(
Object listenerType,
IObservablesListener listener)
-
-
Parameters:
-
listenerType
- -
listener
-
hasListeners
protected boolean hasListeners()
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fireEvent
protected void fireEvent(
ObservableEvent event)
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firstListenerAdded
protected void firstListenerAdded()
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lastListenerRemoved
protected void lastListenerRemoved()
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getRealm
public
Realm getRealm()
-
-
Returns:
- Returns the realm.
clone
protected
Object clone()
throws
CloneNotSupportedException
-
-
Overrides:
-
clone
in class
Object
-
-
Throws:
-
CloneNotSupportedException
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