javafx.beans.binding

Class LongExpression

java.lang.Object

javafx.beans.binding.NumberExpressionBase

javafx.beans.binding.LongExpression

All Implemented Interfaces:

NumberExpression

Direct Known Subclasses:

LongBinding

public abstract class LongExpression
extends NumberExpressionBase

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

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

Since:

JavaFX 2.0

Constructor Summary

Constructors

Constructor and Description
LongExpression()

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.
LongBinding	add(int other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
LongBinding	add(long other) Creates a new NumberBinding that calculates the sum of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
ObjectExpression<java.lang.Long>	asObject() Creates an ObjectExpression that holds the value of this LongExpression.
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.
LongBinding	divide(int other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
LongBinding	divide(long other) Creates a new NumberBinding that calculates the division of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
double	doubleValue()
float	floatValue()
java.lang.Long	getValue()
int	intValue()
static <T extends java.lang.Number> LongExpression	longExpression(<any> value) Returns a LongExpression that wraps an javafx.beans.value.ObservableValue.
static LongExpression	longExpression(ObservableLongValue value) Returns a LongExpression that wraps a javafx.beans.value.ObservableLongValue.
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.
LongBinding	multiply(int other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
LongBinding	multiply(long other) Creates a new NumberBinding that calculates the product of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
LongBinding	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.
LongBinding	subtract(int other) Creates a new NumberBinding that calculates the difference of this NumberExpression and another javafx.beans.value.ObservableNumberValue.
LongBinding	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

LongExpression

public LongExpression()

Method Detail

intValue

public int intValue()

longValue

public long longValue()

floatValue

public float floatValue()

doubleValue

public double doubleValue()

getValue

public java.lang.Long getValue()

longExpression

public static LongExpression longExpression(ObservableLongValue value)

Returns a LongExpression that wraps a javafx.beans.value.ObservableLongValue. If the ObservableLongValue is already a LongExpression, it will be returned. Otherwise a new LongBinding is created that is bound to the ObservableLongValue.

Parameters:

value - The source ObservableLongValue

Returns:

A LongExpression that wraps the ObservableLongValue if necessary

Throws:

java.lang.NullPointerException - if value is null

longExpression

public static <T extends java.lang.Number> LongExpression longExpression(<any> value)

Returns a LongExpression that wraps an javafx.beans.value.ObservableValue. If the ObservableValue is already a LongExpression, it will be returned. Otherwise a new LongBinding 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 LongExpression, which is essentially an ObservableValue<Number>. See sample below.

   LongProperty longProperty = new SimpleLongProperty(1L);
   ObjectProperty<Long> objectProperty = new SimpleObjectProperty<>(2L);
   BooleanBinding binding = longProperty.greaterThan(LongExpression.longExpression(objectProperty));
 

Note: null values will be interpreted as 0L

Type Parameters:

T - The type of Number to be wrapped

Parameters:

value - The source ObservableValue

Returns:

A LongExpression that wraps the ObservableValue if necessary

Throws:

java.lang.NullPointerException - if value is null

Since:

JavaFX 8.0

negate

public LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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 LongBinding 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.Long> asObject()

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

Returns:

the new ObjectExpression

Since:

JavaFX 8.0