- java.lang.Object
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- javafx.beans.binding.NumberExpressionBase
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- javafx.beans.binding.LongExpression
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- javafx.beans.property.ReadOnlyLongProperty
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- javafx.beans.property.LongProperty
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- All Implemented Interfaces:
NumberExpression,Observable,Property<Number>,ReadOnlyProperty<Number>,ObservableLongValue,ObservableNumberValue,ObservableValue<Number>,WritableLongValue,WritableNumberValue,WritableValue<Number>
- Direct Known Subclasses:
JavaBeanLongProperty,LongPropertyBase
public abstract class LongProperty extends ReadOnlyLongProperty implements Property<Number>, WritableLongValue
This class defines aPropertywrapping alongvalue.The value of a
LongPropertycan be get and set withObservableLongValue.get(),ObservableValue.getValue(),WritableLongValue.set(long), andWritableLongValue.setValue(Number).A property can be bound and unbound unidirectional with
Property.bind(ObservableValue)andProperty.unbind(). Bidirectional bindings can be created and removed withProperty.bindBidirectional(Property)andProperty.unbindBidirectional(Property).The context of a
LongPropertycan be read withReadOnlyProperty.getBean()andReadOnlyProperty.getName().Note: setting or binding this property to a null value will set the property to "0.0". See
WritableLongValue.setValue(java.lang.Number).- Since:
- JavaFX 2.0
- See Also:
ObservableLongValue,WritableLongValue,ReadOnlyLongProperty,Property
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Constructor Summary
Constructors Constructor Description LongProperty()Creates a defaultLongProperty.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description ObjectProperty<Long>asObject()Creates anObjectPropertythat bidirectionally bound to thisLongProperty.static LongPropertylongProperty(Property<Long> property)Returns aLongPropertythat wraps aPropertyand is bidirectionally bound to it.StringtoString()Returns a string representation of thisLongPropertyobject.-
Methods declared in class javafx.beans.property.ReadOnlyLongProperty
readOnlyLongProperty
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Methods declared in class javafx.beans.binding.LongExpression
longExpression, longExpression
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Methods declared in class javafx.beans.binding.NumberExpressionBase
numberExpression
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Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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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
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Methods declared in interface javafx.beans.Observable
addListener, removeListener
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Methods declared in interface javafx.beans.value.ObservableLongValue
get
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Methods declared in interface javafx.beans.value.ObservableNumberValue
doubleValue, floatValue, intValue, longValue
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Methods declared in interface javafx.beans.value.ObservableValue
addListener, getValue, removeListener
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Methods declared in interface javafx.beans.property.Property
bind, bindBidirectional, isBound, unbind, unbindBidirectional
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Methods declared in interface javafx.beans.property.ReadOnlyProperty
getBean, getName
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Methods declared in interface javafx.beans.value.WritableLongValue
get, set, setValue
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Methods declared in interface javafx.beans.value.WritableValue
getValue
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Method Detail
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toString
public String toString()
Returns a string representation of thisLongPropertyobject.- Overrides:
toStringin classReadOnlyLongProperty- Returns:
- a string representation of this
LongPropertyobject.
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longProperty
public static LongProperty longProperty(Property<Long> property)
Returns aLongPropertythat wraps aPropertyand is bidirectionally bound to it. Changing this property will result in a change of the original property.This is very useful when bidirectionally binding an ObjectProperty<Long> and a LongProperty.
Another approach is to convert the LongProperty to ObjectProperty usingLongProperty longProperty = new SimpleLongProperty(1L); ObjectProperty<Long> objectProperty = new SimpleObjectProperty<>(2L); // Need to keep the reference as bidirectional binding uses weak references LongProperty objectAsLong = LongProperty.longProperty(objectProperty); longProperty.bindBidirectional(objectAsLong);
asObject()method.Note: null values in the source property will be interpreted as 0L
- Parameters:
property- The sourceProperty- Returns:
- A
LongPropertythat wraps theProperty - Throws:
NullPointerException- ifpropertyisnull- Since:
- JavaFX 8.0
- See Also:
asObject()
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asObject
public ObjectProperty<Long> asObject()
Creates anObjectPropertythat bidirectionally bound to thisLongProperty. If the value of thisLongPropertychanges, the value of theObjectPropertywill be updated automatically and vice-versa.Can be used for binding an ObjectProperty to LongProperty.
LongProperty longProperty = new SimpleLongProperty(1L); ObjectProperty<Long> objectProperty = new SimpleObjectProperty<>(2L); objectProperty.bind(longProperty.asObject());
- Overrides:
asObjectin classReadOnlyLongProperty- Returns:
- the new
ObjectProperty - Since:
- JavaFX 8.0
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