javafx.beans.property

Class BooleanProperty

java.lang.Object

javafx.beans.binding.BooleanExpression

javafx.beans.property.ReadOnlyBooleanProperty

javafx.beans.property.BooleanProperty

All Implemented Interfaces:

Observable, Property<Boolean>, ReadOnlyProperty<Boolean>, ObservableBooleanValue, ObservableValue<Boolean>, WritableBooleanValue, WritableValue<Boolean>

Direct Known Subclasses:

BooleanPropertyBase, JavaBeanBooleanProperty

public abstract class BooleanProperty
extends ReadOnlyBooleanProperty
implements Property<Boolean>, WritableBooleanValue

This class provides a full implementation of a Property wrapping a boolean value.

The value of a BooleanProperty can be get and set with ObservableBooleanValue.get(), BooleanExpression.getValue(), WritableBooleanValue.set(boolean), and setValue(Boolean).

A property can be bound and unbound unidirectional with Property.bind(ObservableValue) and Property.unbind(). Bidirectional bindings can be created and removed with bindBidirectional(Property) and unbindBidirectional(Property).

The context of a BooleanProperty can be read with ReadOnlyProperty.getBean() and ReadOnlyProperty.getName().

Note: setting or binding this property to a null value will set the property to "false". See setValue(java.lang.Boolean).

Since:

JavaFX 2.0

See Also:

ObservableBooleanValue, WritableBooleanValue, ReadOnlyBooleanProperty, Property

Constructor Summary

Constructors

Constructor and Description
BooleanProperty() Sole constructor

Method Summary

Modifier and Type	Method and Description
ObjectProperty<Boolean>	asObject() Creates an ObjectProperty that holds the value of this BooleanProperty.
void	bindBidirectional(Property<Boolean> other) Create a bidirectional binding between this Property and another one.
static BooleanProperty	booleanProperty(Property<Boolean> property) Returns a BooleanProperty that wraps a Property.
void	setValue(Boolean v) Set the wrapped value.
String	toString() Returns a string representation of this BooleanProperty object.
void	unbindBidirectional(Property<Boolean> other) Remove a bidirectional binding between this Property and another one.

Methods inherited from class javafx.beans.property.ReadOnlyBooleanProperty

readOnlyBooleanProperty

Methods inherited from class javafx.beans.binding.BooleanExpression

and, asString, booleanExpression, booleanExpression, getValue, isEqualTo, isNotEqualTo, not, or

Methods inherited from class java.lang.Object

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

Methods inherited from interface javafx.beans.property.Property

bind, isBound, unbind

Methods inherited from interface javafx.beans.property.ReadOnlyProperty

getBean, getName

Methods inherited from interface javafx.beans.value.ObservableValue

addListener, getValue, removeListener

Methods inherited from interface javafx.beans.Observable

addListener, removeListener

Methods inherited from interface javafx.beans.value.WritableBooleanValue

get, set

Methods inherited from interface javafx.beans.value.WritableValue

getValue

Methods inherited from interface javafx.beans.value.ObservableBooleanValue

get

Constructor Detail

BooleanProperty

public BooleanProperty()

Sole constructor

Method Detail

setValue

public void setValue(Boolean v)

Set the wrapped value.

Specified by:

setValue in interface WritableBooleanValue

Specified by:

setValue in interface WritableValue<Boolean>

Parameters:

v - The new value

bindBidirectional

public void bindBidirectional(Property<Boolean> other)

Create a bidirectional binding between this Property and another one. Bidirectional bindings exists independently of unidirectional bindings. So it is possible to add unidirectional binding to a property with bidirectional binding and vice-versa. However, this practice is discouraged.

It is possible to have multiple bidirectional bindings of one Property.

JavaFX bidirectional binding implementation use weak listeners. This means bidirectional binding does not prevent properties from being garbage collected.

Specified by:

bindBidirectional in interface Property<Boolean>

Parameters:

other - the other Property

unbindBidirectional

public void unbindBidirectional(Property<Boolean> other)

Remove a bidirectional binding between this Property and another one. If no bidirectional binding between the properties exists, calling this method has no effect. It is possible to unbind by a call on the second property. This code will work:

     property1.bindBirectional(property2);
     property2.unbindBidirectional(property1);
 

Specified by:

unbindBidirectional in interface Property<Boolean>

Parameters:

other - the other Property

toString

public String toString()

Returns a string representation of this BooleanProperty object.

Overrides:

toString in class ReadOnlyBooleanProperty

Returns:

a string representation of this BooleanProperty object.

booleanProperty

public static BooleanProperty booleanProperty(Property<Boolean> property)

Returns a BooleanProperty that wraps a Property. If the Property is already a BooleanProperty, it will be returned. Otherwise a new BooleanProperty is created that is bound to the Property. Note: null values in the source property will be interpreted as "false"

Parameters:

property - The source Property

Returns:

A BooleanProperty that wraps the Property if necessary

Throws:

NullPointerException - if property is null

Since:

JavaFX 8.0

asObject

public ObjectProperty<Boolean> asObject()

Creates an ObjectProperty that holds the value of this BooleanProperty. If the value of this BooleanProperty changes, the value of the ObjectProperty will be updated automatically.

Overrides:

asObject in class ReadOnlyBooleanProperty

Returns:

the new ObjectProperty

Since:

JavaFX 8.0