Spec-Zone .ru
спецификации, руководства, описания, API
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T
- the type of the wrapped valuepublic abstract class ObjectPropertyBase<T> extends ObjectProperty<T>
ObjectPropertyBase
is the base class for a property
wrapping an arbitrary Object
.
It provides all the functionality required for a property except for the
ReadOnlyProperty.getBean()
and ReadOnlyProperty.getName()
methods, which must be implemented
by extending classes.ObjectProperty
Constructor and Description |
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ObjectPropertyBase()
The constructor of the
ObjectPropertyBase . |
ObjectPropertyBase(T initialValue)
The constructor of the
ObjectPropertyBase . |
Modifier and Type | Method and Description |
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void |
addListener(ChangeListener<? super T> listener)
Adds a
ChangeListener which will be notified whenever the value
of the ObservableValue changes. |
void |
addListener(InvalidationListener listener)
Adds an
InvalidationListener which will be notified whenever the
Observable becomes invalid. |
void |
bind(ObservableValue<? extends T> observable)
Create a unidirection binding for this
Property . |
protected void |
fireValueChangedEvent()
Sends notifications to all attached
InvalidationListeners and
ChangeListeners . |
T |
get()
Get the wrapped value.
|
protected void |
invalidated()
The method
invalidated() can be overridden to receive
invalidation notifications. |
boolean |
isBound()
Can be used to check, if a
Property is bound. |
void |
removeListener(ChangeListener<? super T> listener)
Removes the given listener from the list of listeners, that are notified
whenever the value of the
ObservableValue changes. |
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 |
set(T v)
Set the wrapped value.
|
java.lang.String |
toString()
Returns a string representation of this
ObjectPropertyBase object. |
void |
unbind()
Remove the unidirectional binding for this
Property . |
bindBidirectional, setValue, unbindBidirectional
equals, hashCode
getValue, isEqualTo, isEqualTo, isNotEqualTo, isNotEqualTo, isNotNull, isNull, objectExpression
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getBean, getName
getValue
getValue
public ObjectPropertyBase()
ObjectPropertyBase
.public ObjectPropertyBase(T initialValue)
ObjectPropertyBase
.initialValue
- the initial value of the wrapped Object
public void addListener(InvalidationListener listener)
Observable
InvalidationListener
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.
listener
- The listener to registerObservable.removeListener(InvalidationListener)
public void removeListener(InvalidationListener listener)
Observable
Observable
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.
listener
- The listener to removeObservable.addListener(InvalidationListener)
public void addListener(ChangeListener<? super T> listener)
ObservableValue
ChangeListener
which will be notified whenever the value
of the ObservableValue
changes. 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 ChangeListener
instance may be safely
registered for different ObservableValues
.
The ObservableValue
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
WeakChangeListener
avoid this situation.
listener
- The listener to registerObservableValue.removeListener(ChangeListener)
public void removeListener(ChangeListener<? super T> listener)
ObservableValue
ObservableValue
changes.
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.
listener
- The listener to removeObservableValue.addListener(ChangeListener)
protected void fireValueChangedEvent()
InvalidationListeners
and
ChangeListeners
.
This method is called when the value is changed, either manually by
calling set(T)
or in case of a bound property, if the
binding becomes invalid.protected void invalidated()
invalidated()
can be overridden to receive
invalidation notifications. This is the preferred option in
Objects
defining the property, because it requires less memory.
The default implementation is empty.public T get()
public void set(T v)
v
- The new valuepublic boolean isBound()
Property
is bound.true
if the Property
is bound, false
otherwisepublic void bind(ObservableValue<? extends T> observable)
Property
.observable
- The observable this Property
should be bound to.public void unbind()
Property
.
If the Property
is not bound, calling this method has no effect.public java.lang.String toString()
ObjectPropertyBase
object.toString
in class ObjectProperty<T>
ObjectPropertyBase
object.Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. Use is subject to