javafx.beans.binding

Class FloatExpression

java.lang.Object

javafx.beans.binding.NumberExpressionBase

javafx.beans.binding.FloatExpression

All Implemented Interfaces:

NumberExpression

Direct Known Subclasses:

FloatBinding

public abstract class FloatExpression
extends NumberExpressionBase

FloatExpression is an javafx.beans.value.ObservableFloatValue plus additional convenience methods to generate bindings in a fluent style.

A concrete sub-class of FloatExpression has to implement the method javafx.beans.value.ObservableFloatValue#get(), which provides the actual value of this expression.

Since:

JavaFX 2.0

Constructor Summary

Constructors

Constructor and Description
FloatExpression()

Method Summary

Modifier and Type	Method and Description
DoubleBinding	add(double other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	add(float other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	add(int other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	add(long other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
ObjectExpression<java.lang.Float>	asObject() Creates an ObjectExpression that holds the value of this FloatExpression.
DoubleBinding	divide(double other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	divide(float other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	divide(int other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	divide(long other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
double	doubleValue()
static <T extends java.lang.Number> FloatExpression	floatExpression(<any> value) Returns a FloatExpression that wraps an javafx.beans.value.ObservableValue.
static FloatExpression	floatExpression(ObservableFloatValue value) Returns a FloatExpression that wraps a javafx.beans.value.ObservableFloatValue.
float	floatValue()
java.lang.Float	getValue()
int	intValue()
long	longValue()
DoubleBinding	multiply(double other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	multiply(float other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	multiply(int other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	multiply(long other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	negate() Creates a new NumberBinding that calculates the negation of NumberExpression.
DoubleBinding	subtract(double other) Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	subtract(float other) Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	subtract(int other) Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
FloatBinding	subtract(long other) Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Methods inherited from class javafx.beans.binding.NumberExpressionBase

asString, asString, asString, greaterThan, greaterThanOrEqualTo, isEqualTo, isEqualTo, isNotEqualTo, isNotEqualTo, lessThan, lessThanOrEqualTo, numberExpression

Methods inherited from class java.lang.Object

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

Constructor Detail

FloatExpression

public FloatExpression()

Method Detail

intValue

public int intValue()

longValue

public long longValue()

floatValue

public float floatValue()

doubleValue

public double doubleValue()

getValue

public java.lang.Float getValue()

floatExpression

public static FloatExpression floatExpression(ObservableFloatValue value)

Returns a FloatExpression that wraps a javafx.beans.value.ObservableFloatValue. If the ObservableFloatValue is already a FloatExpression, it will be returned. Otherwise a new FloatBinding is created that is bound to the ObservableFloatValue.

Parameters:

value - The source ObservableFloatValue

Returns:

A FloatExpression that wraps the ObservableFloatValue if necessary

Throws:

java.lang.NullPointerException - if value is null

floatExpression

public static <T extends java.lang.Number> FloatExpression floatExpression(<any> value)

Returns a FloatExpression that wraps an javafx.beans.value.ObservableValue. If the ObservableValue is already a FloatExpression, it will be returned. Otherwise a new FloatBinding is created that is bound to the ObservableValue.

Note: this method can be used to convert an ObjectExpression or javafx.beans.property.ObjectProperty of specific number type to FloatExpression, which is essentially an ObservableValue<Number>. See sample below.

   FloatProperty floatProperty = new SimpleFloatProperty(1.0f);
   ObjectProperty<Float> objectProperty = new SimpleObjectProperty<>(2.0f);
   BooleanBinding binding = floatProperty.greaterThan(FloatExpression.floatExpression(objectProperty));
 

Note: null values will be interpreted as 0f

Type Parameters:

T - The type of Number to be wrapped

Parameters:

value - The source ObservableValue

Returns:

A FloatExpression that wraps the ObservableValue if necessary

Throws:

java.lang.NullPointerException - if value is null

Since:

JavaFX 8.0

negate

public FloatBinding negate()

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the negation of NumberExpression.

Returns:

the new NumberBinding

add

public DoubleBinding add(double other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

add in interface NumberExpression

Overrides:

add in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

add

public FloatBinding add(float other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

add in interface NumberExpression

Overrides:

add in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

add

public FloatBinding add(long other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

add in interface NumberExpression

Overrides:

add in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

add

public FloatBinding add(int other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

add in interface NumberExpression

Overrides:

add in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

subtract

public DoubleBinding subtract(double other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

subtract in interface NumberExpression

Overrides:

subtract in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

subtract

public FloatBinding subtract(float other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

subtract in interface NumberExpression

Overrides:

subtract in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

subtract

public FloatBinding subtract(long other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

subtract in interface NumberExpression

Overrides:

subtract in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

subtract

public FloatBinding subtract(int other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

subtract in interface NumberExpression

Overrides:

subtract in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

multiply

public DoubleBinding multiply(double other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

multiply in interface NumberExpression

Overrides:

multiply in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

multiply

public FloatBinding multiply(float other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

multiply in interface NumberExpression

Overrides:

multiply in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

multiply

public FloatBinding multiply(long other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

multiply in interface NumberExpression

Overrides:

multiply in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

multiply

public FloatBinding multiply(int other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

multiply in interface NumberExpression

Overrides:

multiply in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

divide

public DoubleBinding divide(double other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

divide in interface NumberExpression

Overrides:

divide in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

divide

public FloatBinding divide(float other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

divide in interface NumberExpression

Overrides:

divide in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

divide

public FloatBinding divide(long other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

divide in interface NumberExpression

Overrides:

divide in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

divide

public FloatBinding divide(int other)

Description copied from interface: NumberExpression

Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.

Specified by:

divide in interface NumberExpression

Overrides:

divide in class NumberExpressionBase

Parameters:

other - the second ObservableNumberValue

Returns:

the new NumberBinding

asObject

public ObjectExpression<java.lang.Float> asObject()

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

Returns:

the new ObjectExpression

Since:

JavaFX 8.0