Interface ObservableNumberValue

All Superinterfaces:

Observable, ObservableValue<Number>

All Known Subinterfaces:

NumberBinding, NumberExpression, ObservableDoubleValue, ObservableFloatValue, ObservableIntegerValue, ObservableLongValue

All Known Implementing Classes:

DoubleBinding, DoubleExpression, DoubleProperty, DoublePropertyBase, FloatBinding, FloatExpression, FloatProperty, FloatPropertyBase, IntegerBinding, IntegerExpression, IntegerProperty, IntegerPropertyBase, JavaBeanDoubleProperty, JavaBeanFloatProperty, JavaBeanIntegerProperty, JavaBeanLongProperty, LongBinding, LongExpression, LongProperty, LongPropertyBase, NumberExpressionBase, ReadOnlyDoubleProperty, ReadOnlyDoublePropertyBase, ReadOnlyDoubleWrapper, ReadOnlyFloatProperty, ReadOnlyFloatPropertyBase, ReadOnlyFloatWrapper, ReadOnlyIntegerProperty, ReadOnlyIntegerPropertyBase, ReadOnlyIntegerWrapper, ReadOnlyJavaBeanDoubleProperty, ReadOnlyJavaBeanFloatProperty, ReadOnlyJavaBeanIntegerProperty, ReadOnlyJavaBeanLongProperty, ReadOnlyLongProperty, ReadOnlyLongPropertyBase, ReadOnlyLongWrapper, SimpleDoubleProperty, SimpleFloatProperty, SimpleIntegerProperty, SimpleLongProperty, SimpleStyleableDoubleProperty, SimpleStyleableFloatProperty, SimpleStyleableIntegerProperty, SimpleStyleableLongProperty, StyleableDoubleProperty, StyleableFloatProperty, StyleableIntegerProperty, StyleableLongProperty

public interface ObservableNumberValue
extends ObservableValue<Number>

A common interface of all sub-interfaces of ObservableValue that wrap a number.

Since:

JavaFX 2.0

See Also:

• ObservableValue
• ObservableDoubleValue
• ObservableFloatValue
• ObservableIntegerValue
• ObservableLongValue

Method Summary

Modifier and Type	Method	Description
double	doubleValue()	Returns the value of this ObservableNumberValue as a double.
float	floatValue()	Returns the value of this ObservableNumberValue as a float.
int	intValue()	Returns the value of this ObservableNumberValue as an int .
long	longValue()	Returns the value of this ObservableNumberValue as a long .

Methods declared in interface Observable

addListener, removeListener, subscribe

Modifier and Type	Method	Description
void	addListener(InvalidationListener listener)	Adds an InvalidationListener which will be notified whenever the Observable becomes invalid.
void	removeListener(InvalidationListener listener)	Removes the given listener from the list of listeners, that are notified whenever the value of the Observable becomes invalid.
default Subscription	subscribe(Runnable invalidationSubscriber)	Creates a Subscription on this Observable which calls invalidationSubscriber whenever it becomes invalid.

Methods declared in interface ObservableValue

addListener, flatMap, getValue, map, orElse, removeListener, subscribe, subscribe, when

Modifier and Type	Method	Description
void	addListener(ChangeListener<? super Number> listener)	Adds a ChangeListener which will be notified whenever the value of the ObservableValue changes.
default <U> ObservableValue<U>	flatMap(Function<? super Number, ? extends ObservableValue<? extends U>> mapper)	Returns an ObservableValue that holds the value of an ObservableValue produced by applying the given mapping function on this value.
Number	getValue()	Returns the current value of this ObservableValue
default <U> ObservableValue<U>	map(Function<? super Number, ? extends U> mapper)	Returns an ObservableValue that holds the result of applying the given mapping function on this value.
default ObservableValue<Number>	orElse(Number constant)	Returns an ObservableValue that holds this value, or the given constant if it is null.
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.
default Subscription	subscribe(BiConsumer<? super Number, ? super Number> changeSubscriber)	Creates a Subscription on this ObservableValue which calls the given changeSubscriber with the old and new value whenever its value changes.
default Subscription	subscribe(Consumer<? super Number> valueSubscriber)	Creates a Subscription on this ObservableValue which immediately provides the current value to the given valueSubscriber, followed by any subsequent values whenever its value changes.
default ObservableValue<Number>	when(ObservableValue<Boolean> condition)	Returns an ObservableValue that holds this value and is updated only when condition holds true.

Method Details

intValue

int intValue()

Returns the value of this ObservableNumberValue as an int . If the value is not an int, a standard cast is performed.

Returns:

The value of this ObservableNumberValue as an int

longValue

long longValue()

Returns the value of this ObservableNumberValue as a long . If the value is not a long, a standard cast is performed.

Returns:

The value of this ObservableNumberValue as a long

floatValue

float floatValue()

Returns the value of this ObservableNumberValue as a float. If the value is not a float, a standard cast is performed.

Returns:

The value of this ObservableNumberValue as a float

doubleValue

double doubleValue()

Returns the value of this ObservableNumberValue as a double. If the value is not a double, a standard cast is performed.

Returns:

The value of this ObservableNumberValue as a double