Class LongExpression

java.lang.Object

javafx.beans.binding.NumberExpressionBase

javafx.beans.binding.LongExpression

All Implemented Interfaces:

NumberExpression, Observable, ObservableLongValue, ObservableNumberValue, ObservableValue<Number>

Direct Known Subclasses:

LongBinding, ReadOnlyLongProperty

public abstract class LongExpression
extends NumberExpressionBase
implements ObservableLongValue

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

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

Since:

JavaFX 2.0

Constructor Summary

Constructors

Constructor	Description
LongExpression()	Creates a default LongExpression.

Method Summary

Modifier and Type

Method

Description

DoubleBinding

add(double other)

Creates a new NumberBinding that calculates the sum of this NumberExpression and a constant value.

FloatBinding

add(float other)

Creates a new NumberBinding that calculates the sum of this NumberExpression and a constant value.

LongBinding

add(int other)

Creates a new NumberBinding that calculates the sum of this NumberExpression and a constant value.

LongBinding

add(long other)

Creates a new NumberBinding that calculates the sum of this NumberExpression and a constant value.

ObjectExpression<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 a constant value.

FloatBinding

divide(float other)

Creates a new NumberBinding that calculates the division of this NumberExpression and a constant value.

LongBinding

divide(int other)

Creates a new NumberBinding that calculates the division of this NumberExpression and a constant value.

LongBinding

divide(long other)

Creates a new NumberBinding that calculates the division of this NumberExpression and a constant value.

double

doubleValue()

Returns the value of this ObservableNumberValue as a double.

float

floatValue()

Returns the value of this ObservableNumberValue as a float.

Long

getValue()

Returns the current value of this ObservableValue

int

intValue()

Returns the value of this ObservableNumberValue as an int .

static LongExpression

longExpression(ObservableLongValue value)

Returns a LongExpression that wraps a ObservableLongValue.

static <T extends Number>
LongExpression

longExpression(ObservableValue<T> value)

Returns a LongExpression that wraps an ObservableValue.

long

longValue()

Returns the value of this ObservableNumberValue as a long .