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. |
readOnlyFloatProperty
add, add, add, add, divide, divide, divide, divide, doubleValue, floatExpression, floatExpression, floatValue, getValue, intValue, longValue, multiply, multiply, multiply, multiply, negate, subtract, subtract, subtract, subtract
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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getBean, getName
addListener, getValue, removeListener
addListener, removeListener
get, set
getValue
get
public void setValue(Number v)
setValue
in interface WritableFloatValue
setValue
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 Property
public 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 Property
public String toString()
FloatProperty
object.toString
in class ReadOnlyFloatProperty
FloatProperty
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 Property
FloatProperty
that wraps the
Property
NullPointerException
- if property
is null
asObject()
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 ReadOnlyFloatProperty
ObjectProperty
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