Module javafx.base

Package javafx.beans.property

Class ReadOnlySetPropertyBase<E>

java.lang.Object

javafx.beans.binding.SetExpression<E>

javafx.beans.property.ReadOnlySetProperty<E>

javafx.beans.property.ReadOnlySetPropertyBase<E>

Type Parameters:

E - the type of the Set elements

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>, Observable, ReadOnlyProperty<ObservableSet<E>>, ObservableObjectValue<ObservableSet<E>>, ObservableSetValue<E>, ObservableValue<ObservableSet<E>>, ObservableSet<E>

public abstract class ReadOnlySetPropertyBase<E>
extends ReadOnlySetProperty<E>

Base class for all readonly properties wrapping an ObservableSet. This class provides a default implementation to attach listener.

Since:

JavaFX 2.1

See Also:

• ReadOnlySetProperty

Property Summary

Properties declared in class javafx.beans.binding.SetExpression

empty, size

Constructor Summary

Constructors

Constructor	Description
ReadOnlySetPropertyBase()	Creates a default ReadOnlySetPropertyBase.

Method Summary

Modifier and Type	Method	Description
void	addListener(InvalidationListener listener)	Adds an InvalidationListener which will be notified whenever the Observable becomes invalid.
void	addListener(ChangeListener<? super ObservableSet<E>> listener)	Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes.
void	addListener(SetChangeListener<? super E> listener)	Add a listener to this observable set.
protected void	fireValueChangedEvent()	This method needs to be called if the reference to the ObservableSet changes.
protected void	fireValueChangedEvent(SetChangeListener.Change<? extends E> change)	This method needs to be called if the content of the referenced ObservableSet 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	removeListener(ChangeListener<? super ObservableSet<E>> listener)	Removes the given listener from the list of listeners that are notified whenever the value of the ObservableValue changes.
void	removeListener(SetChangeListener<? super E> listener)	Tries to removed a listener from this observable set.

Methods declared in class javafx.beans.property.ReadOnlySetProperty

bindContent, bindContentBidirectional, equals, hashCode, toString, unbindContent, unbindContentBidirectional

Methods declared in class javafx.beans.binding.SetExpression

add, addAll, asString, clear, contains, containsAll, emptyProperty, getSize, getValue, isEmpty, isEqualTo, isNotEqualTo, isNotNull, isNull, iterator, remove, removeAll, retainAll, setExpression, size, sizeProperty, toArray, toArray

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods declared in interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods declared in interface java.lang.Iterable

forEach

Methods declared in interface javafx.beans.value.ObservableObjectValue

get

Methods declared in interface javafx.beans.value.ObservableValue

flatMap, getValue, map, orElse, when

Methods declared in interface javafx.beans.property.ReadOnlyProperty

getBean, getName

Methods declared in interface java.util.Set

spliterator

Constructor Details

ReadOnlySetPropertyBase

public ReadOnlySetPropertyBase()

Creates a default ReadOnlySetPropertyBase.

Method Details

addListener

public void addListener(InvalidationListener listener)

Description copied from interface: Observable

Adds an 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.

Parameters:

listener - The listener to register

See Also:

• Observable.removeListener(InvalidationListener)

removeListener

public void removeListener(InvalidationListener listener)

Description copied from interface: Observable

Removes the given listener from the list of listeners, that are notified whenever the value of the 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.

Parameters:

listener - The listener to remove

See Also:

• Observable.addListener(InvalidationListener)

addListener

public void addListener(ChangeListener<? super ObservableSet<E>> listener)

Description copied from interface: ObservableValue

Adds a 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.

Parameters:

listener - The listener to register

See Also:

• ObservableValue.removeListener(ChangeListener)

removeListener

public void removeListener(ChangeListener<? super ObservableSet<E>> listener)

Description copied from interface: ObservableValue

Removes the given listener from the list of listeners that are notified whenever the value of the 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.

Parameters:

listener - The listener to remove

See Also:

• ObservableValue.addListener(ChangeListener)

addListener

public void addListener(SetChangeListener<? super E> listener)

Description copied from interface: ObservableSet

Add a listener to this observable set.

Parameters:

listener - the listener for listening to the set changes

removeListener

public void removeListener(SetChangeListener<? super E> listener)

Description copied from interface: ObservableSet

Tries to removed a listener from this observable set. If the listener is not attached to this list, nothing happens.

Parameters:

listener - a listener to remove

fireValueChangedEvent

protected void fireValueChangedEvent()

This method needs to be called if the reference to the ObservableSet changes. It sends notifications to all attached InvalidationListeners, ChangeListeners, and SetChangeListener. This method needs to be called, if the value of this property changes.

fireValueChangedEvent

protected void fireValueChangedEvent(SetChangeListener.Change<? extends E> change)

This method needs to be called if the content of the referenced ObservableSet changes. Sends notifications to all attached InvalidationListeners, ChangeListeners, and SetChangeListener. This method is called when the content of the list changes.

Parameters:

change - the change that needs to be propagated