Module javafx.base

Package javafx.beans.binding

Class IntegerExpression

java.lang.Object

javafx.beans.binding.NumberExpressionBase

javafx.beans.binding.IntegerExpression

All Implemented Interfaces:

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

Direct Known Subclasses:

IntegerBinding, ReadOnlyIntegerProperty

public abstract class IntegerExpression
extends NumberExpressionBase
implements ObservableIntegerValue

IntegerExpression is an ObservableIntegerValue plus additional convenience methods to generate bindings in a fluent style.

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

Since:

JavaFX 2.0

Constructor Summary

Constructors

Constructor	Description
IntegerExpression()

Method Summary

Modifier and Type	Method	Description
ObjectExpression<Integer>	asObject()	Creates an ObjectExpression that holds the value of this IntegerExpression.
static IntegerExpression	integerExpression(ObservableIntegerValue value)	Returns a IntegerExpression that wraps a ObservableIntegerValue.
static <T extends Number> IntegerExpression	integerExpression(ObservableValue<T> value)	Returns an IntegerExpression that wraps an ObservableValue.

Methods declared in interface javafx.beans.binding.NumberExpression

add, add, add, add, add, asString, asString, asString, divide, divide, divide, divide, 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, multiply, multiply, multiply, multiply, negate, subtract, subtract, subtract, subtract, subtract

Methods declared in class javafx.beans.binding.NumberExpressionBase

numberExpression

Methods declared in class java.lang.Object

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

Methods declared in interface javafx.beans.Observable

addListener, removeListener

Methods declared in interface javafx.beans.value.ObservableIntegerValue

get

Methods declared in interface javafx.beans.value.ObservableNumberValue

doubleValue, floatValue, intValue, longValue

Methods declared in interface javafx.beans.value.ObservableValue

addListener, getValue, removeListener

Constructor Detail

IntegerExpression

public IntegerExpression()

Method Detail

integerExpression

public static IntegerExpression integerExpression(ObservableIntegerValue value)

Returns a IntegerExpression that wraps a ObservableIntegerValue. If the ObservableIntegerValue is already a IntegerExpression, it will be returned. Otherwise a new IntegerBinding is created that is bound to the ObservableIntegerValue.

Parameters:

value - The source ObservableIntegerValue

Returns:

A IntegerExpression that wraps the ObservableIntegerValue if necessary

Throws:

NullPointerException - if value is null

integerExpression

public static <T extends Number> IntegerExpression integerExpression(ObservableValue<T> value)

Returns an IntegerExpression that wraps an ObservableValue. If the ObservableValue is already a IntegerExpression, it will be returned. Otherwise a new IntegerBinding is created that is bound to the ObservableValue.

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

   IntegerProperty integerProperty = new SimpleIntegerProperty(1);
   ObjectProperty<Integer> objectProperty = new SimpleObjectProperty<>(2);
   BooleanBinding binding = integerProperty.greaterThan(IntegerExpression.integerExpression(objectProperty));
 

Note: null values will be interpreted as 0

Type Parameters:

T - The type of Number to be wrapped

Parameters:

value - The source ObservableValue

Returns:

A IntegerExpression that wraps the ObservableValue if necessary

Throws:

NullPointerException - if value is null

Since:

JavaFX 8.0

asObject

public ObjectExpression<Integer> asObject()

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

Returns:

the new ObjectExpression

Since:

JavaFX 8.0