javafx.beans.property

Class ReadOnlyDoubleWrapper

java.lang.Object

javafx.beans.binding.NumberExpressionBase

javafx.beans.binding.DoubleExpression

javafx.beans.property.ReadOnlyDoubleProperty

javafx.beans.property.DoubleProperty

javafx.beans.property.DoublePropertyBase

javafx.beans.property.SimpleDoubleProperty

javafx.beans.property.ReadOnlyDoubleWrapper

All Implemented Interfaces:

NumberExpression, Observable, Property<java.lang.Number>, ReadOnlyProperty<java.lang.Number>, ObservableDoubleValue, ObservableNumberValue, ObservableValue<java.lang.Number>, WritableDoubleValue, WritableNumberValue, WritableValue<java.lang.Number>

public class ReadOnlyDoubleWrapper
extends SimpleDoubleProperty

This class provides a convenient class to define read-only properties. It creates two properties that are synchronized. One property is read-only and can be passed to external users. The other property is read- and writable and should be used internally only.

Constructor Summary

Constructors

Constructor and Description
ReadOnlyDoubleWrapper() The constructor of ReadOnlyDoubleWrapper
ReadOnlyDoubleWrapper(double initialValue) The constructor of ReadOnlyDoubleWrapper
ReadOnlyDoubleWrapper(java.lang.Object bean, java.lang.String name) The constructor of ReadOnlyDoubleWrapper
ReadOnlyDoubleWrapper(java.lang.Object bean, java.lang.String name, double initialValue) The constructor of ReadOnlyDoubleWrapper

Method Summary

Methods

Modifier and Type	Method and Description
void	addListener(ChangeListener<? super java.lang.Number> 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.
protected void	fireValueChangedEvent() Sends notifications to all attached InvalidationListeners and ChangeListeners.
ReadOnlyDoubleProperty	getReadOnlyProperty() Returns the read-only property, that is synchronized with this ReadOnlyDoubleWrapper.
void	removeListener(ChangeListener<? super java.lang.Number> 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.

Methods inherited from class javafx.beans.property.SimpleDoubleProperty

getBean, getName

Methods inherited from class javafx.beans.property.DoublePropertyBase

bind, get, invalidated, isBound, set, toString, unbind

Methods inherited from class javafx.beans.property.DoubleProperty

bindBidirectional, setValue, unbindBidirectional

Methods inherited from class javafx.beans.property.ReadOnlyDoubleProperty

equals, hashCode

Methods inherited from class javafx.beans.binding.DoubleExpression

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

Methods inherited from class javafx.beans.binding.NumberExpressionBase

asString, asString, asString, 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, numberExpression

Methods inherited from class java.lang.Object

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

Methods inherited from interface javafx.beans.value.ObservableValue

getValue

Methods inherited from interface javafx.beans.value.WritableValue

getValue

Constructor Detail

ReadOnlyDoubleWrapper

public ReadOnlyDoubleWrapper()

The constructor of ReadOnlyDoubleWrapper

ReadOnlyDoubleWrapper

public ReadOnlyDoubleWrapper(double initialValue)

The constructor of ReadOnlyDoubleWrapper

Parameters:

initialValue - the initial value of the wrapped value

ReadOnlyDoubleWrapper

public ReadOnlyDoubleWrapper(java.lang.Object bean,
                     java.lang.String name)

The constructor of ReadOnlyDoubleWrapper

Parameters:

bean - the bean of this ReadOnlyDoubleProperty

name - the name of this ReadOnlyDoubleProperty

ReadOnlyDoubleWrapper

public ReadOnlyDoubleWrapper(java.lang.Object bean,
                     java.lang.String name,
                     double initialValue)

The constructor of ReadOnlyDoubleWrapper

Parameters:

bean - the bean of this ReadOnlyDoubleProperty

name - the name of this ReadOnlyDoubleProperty

initialValue - the initial value of the wrapped value

Method Detail

getReadOnlyProperty

public ReadOnlyDoubleProperty getReadOnlyProperty()

Returns the read-only property, that is synchronized with this ReadOnlyDoubleWrapper.

Returns:

the read-only property

addListener

public void addListener(InvalidationListener listener)

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.

Specified by:

addListener in interface Observable

Overrides:

addListener in class DoublePropertyBase

Parameters:

listener - The listener to register

See Also:

Observable.removeListener(InvalidationListener)

removeListener

public void removeListener(InvalidationListener listener)

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.

Specified by:

removeListener in interface Observable

Overrides:

removeListener in class DoublePropertyBase

Parameters:

listener - The listener to remove

See Also:

Observable.addListener(InvalidationListener)

addListener

public void addListener(ChangeListener<? super java.lang.Number> listener)

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.

Specified by:

addListener in interface ObservableValue<java.lang.Number>

Overrides:

addListener in class DoublePropertyBase

Parameters:

listener - The listener to register

See Also:

ObservableValue.removeListener(ChangeListener)

removeListener

public void removeListener(ChangeListener<? super java.lang.Number> listener)

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.

Specified by:

removeListener in interface ObservableValue<java.lang.Number>

Overrides:

removeListener in class DoublePropertyBase

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 is called when the value is changed, either manually by calling DoublePropertyBase.set(double) or in case of a bound property, if the binding becomes invalid.

Overrides:

fireValueChangedEvent in class DoublePropertyBase