public abstract class FloatProperty extends ReadOnlyFloatProperty implements Property<Number>, WritableFloatValue
Property wrapping a float value.
The value of a FloatProperty can be get and set with ObservableFloatValue.get(),
FloatExpression.getValue(), WritableFloatValue.set(float), and setValue(Number).
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 FloatProperty can be read with ReadOnlyProperty.getBean()
and ReadOnlyProperty.getName().
Note: setting or binding this property to a null value will set the property to "0.0". See setValue(java.lang.Number).
ObservableFloatValue,
WritableFloatValue,
ReadOnlyFloatProperty,
Property| Constructor and Description |
|---|
FloatProperty() |
| Modifier and Type | Method and Description |
|---|---|
ObjectProperty<Float> |
asObject()
Creates an
ObjectProperty that
bidirectionally bound to this FloatProperty. |
void |
bindBidirectional(Property<Number> other)
Create a bidirectional binding between this
Property and another
one. |
static FloatProperty |
floatProperty(Property<Float> property)
Returns a
FloatProperty that wraps a
Property and is
bidirectionally bound to it. |
void |
setValue(Number v)
Set the wrapped value.
|
String |
toString()
Returns a string representation of this
FloatProperty object. |
void |
unbindBidirectional(Property<Number> other)
Remove a bidirectional binding between this
Property and another
one. |
readOnlyFloatPropertyadd, add, add, add, divide, divide, divide, divide, doubleValue, floatExpression, floatExpression, floatValue, getValue, intValue, longValue, multiply, multiply, multiply, multiply, negate, subtract, subtract, subtract, subtractadd, 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, subtractclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitgetBean, getNameaddListener, getValue, removeListeneraddListener, removeListenerget, setgetValuegetpublic void setValue(Number v)
setValue in interface WritableFloatValuesetValue in interface WritableValue<Number>v - The new valuepublic void bindBidirectional(Property<Number> other)
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.
bindBidirectional in interface Property<Number>other - the other Propertypublic void unbindBidirectional(Property<Number> other)
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);
unbindBidirectional in interface Property<Number>other - the other Propertypublic String toString()
FloatProperty object.toString in class ReadOnlyFloatPropertyFloatProperty object.public static FloatProperty floatProperty(Property<Float> property)
FloatProperty that wraps a
Property and is
bidirectionally bound to it.
Changing this property will result in a change of the original property.
This is very useful when bidirectionally binding an ObjectProperty
Note: null values in the source property will be interpreted as 0f
Another approach is to convert the FloatProperty to ObjectProperty using
FloatProperty floatProperty = new SimpleFloatProperty(1.0f);
ObjectProperty<Float> objectProperty = new SimpleObjectProperty<>(2.0f);
// Need to keep the reference as bidirectional binding uses weak references
FloatProperty objectAsFloat = FloatProperty.floatProperty(objectProperty);
floatProperty.bindBidirectional(objectAsFloat);
asObject() method.
property - The source PropertyFloatProperty that wraps the
PropertyNullPointerException - if property is nullasObject()public ObjectProperty<Float> asObject()
ObjectProperty that
bidirectionally bound to this FloatProperty. If the value of
this FloatProperty changes, the value of the
ObjectProperty will be updated automatically and vice-versa.
Can be used for binding an ObjectProperty to FloatProperty.
FloatProperty floatProperty = new SimpleFloatProperty(1.0f); ObjectProperty<Float> objectProperty = new SimpleObjectProperty<>(2.0f); objectProperty.bind(floatProperty.asObject());
asObject in class ReadOnlyFloatPropertyObjectPropertySubmit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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