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Class ReadOnlyLongPropertyBase

java.lang.Object
javafx.beans.binding.NumberExpressionBase
javafx.beans.binding.LongExpression
javafx.beans.property.ReadOnlyLongProperty
javafx.beans.property.ReadOnlyLongPropertyBase
All Implemented Interfaces:
NumberExpression, Observable, ReadOnlyProperty<Number>, ObservableLongValue, ObservableNumberValue, ObservableValue<Number>
Direct Known Subclasses:
ReadOnlyJavaBeanLongProperty
public abstract class ReadOnlyLongPropertyBase extends ReadOnlyLongProperty
Base class for all readonly properties wrapping a long. This class provides a default implementation to attach listener.
Since:
JavaFX 2.0
See Also:
  • ReadOnlyLongProperty

Constructor Summary

Constructor Description
ReadOnlyLongPropertyBase()
Creates a default ReadOnlyLongPropertyBase.

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 Number> listener)
Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes.
protected void fireValueChangedEvent()
Sends notifications to all attached InvalidationListeners and ChangeListeners.
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 Number> listener)
Removes the given listener from the list of listeners that are notified whenever the value of the ObservableValue changes.

Methods declared in class javafx.beans.property.ReadOnlyLongProperty

asObject, readOnlyLongProperty, toString

Methods declared in class javafx.beans.binding.LongExpression

add, add, add, add, divide, divide, divide, divide, doubleValue, floatValue, getValue, intValue, longExpression, longExpression, longValue, multiply, multiply, multiply, multiply, negate, subtract, subtract, subtract, subtract

Methods declared in class javafx.beans.binding.NumberExpressionBase

add, asString, asString, asString, divide, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThanOrEqualTo, greaterThanOrEqualTo, greaterThanOrEqualTo, greaterThanOrEqualTo, greaterThanOrEqualTo, isEqualTo, isEqualTo, isEqualTo, isEqualTo, isEqualTo, isEqualTo, isEqualTo, isEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, isNotEqualTo, lessThan, lessThan, lessThan, lessThan, lessThan, lessThanOrEqualTo, lessThanOrEqualTo, lessThanOrEqualTo, lessThanOrEqualTo, lessThanOrEqualTo, multiply, numberExpression, subtract

Methods declared in class java.lang.Object

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

Methods declared in interface javafx.beans.Observable

subscribe

Methods declared in interface javafx.beans.value.ObservableLongValue

get

Methods declared in interface javafx.beans.value.ObservableValue

flatMap, getValue, map, orElse, subscribe, subscribe, when

Methods declared in interface javafx.beans.property.ReadOnlyProperty

getBean, getName

Constructor Details

ReadOnlyLongPropertyBase

public ReadOnlyLongPropertyBase()
Creates a default ReadOnlyLongPropertyBase.

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 Number> 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 Number> 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)

fireValueChangedEvent

protected void fireValueChangedEvent()
Sends notifications to all attached InvalidationListeners and ChangeListeners. This method needs to be called, if the value of this property changes.

Report a bug or suggest an enhancement
Copyright © 2008, 2025, Oracle and/or its affiliates. All rights reserved.

© 2008, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Java, JavaFX and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

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