Class LongProperty

public abstract class LongProperty
extends ReadOnlyLongProperty
implements Property<Number>, WritableLongValue

• Constructor Summary

  Constructors

  Constructor and Description
  LongProperty()

• Method Summary

  All MethodsStatic MethodsInstance MethodsConcrete Methods

  Modifier and Type	Method and Description
  ObjectProperty<Long>	asObject() Creates an ObjectProperty that bidirectionally bound to this LongProperty.
  void	bindBidirectional(Property<Number> other) Create a bidirectional binding between this Property and another one.
  static LongProperty	longProperty(Property<Long> property) Returns a LongProperty that wraps a Property and is bidirectionally bound to it.
  void	setValue(Number v) Set the wrapped value.
  String	toString() Returns a string representation of this LongProperty object.
  void	unbindBidirectional(Property<Number> other) Remove a bidirectional binding between this Property and another one.

  • Methods inherited from class javafx.beans.property.ReadOnlyLongProperty

    readOnlyLongProperty

  • Methods inherited from class javafx.beans.binding.LongExpression

    add, add, add, add, divide, divide, divide, divide, doubleValue, floatValue, getValue, intValue, longExpression, longExpression, longValue, multiply, multiply, multiply, multiply, negate, subtract, subtract, subtract, subtract

  • Methods inherited from class javafx.beans.binding.NumberExpressionBase

    add, asString, asString, asString, 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, numberExpression, subtract

  • Methods inherited from class java.lang.Object

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

  • Methods inherited from interface javafx.beans.property.Property

    bind, isBound, unbind

  • Methods inherited from interface javafx.beans.property.ReadOnlyProperty

    getBean, getName

  • Methods inherited from interface javafx.beans.value.ObservableValue

    addListener, getValue, removeListener

  • Methods inherited from interface javafx.beans.Observable

    addListener, removeListener

  • Methods inherited from interface javafx.beans.value.WritableLongValue

    get, set

  • Methods inherited from interface javafx.beans.value.WritableValue

    getValue

  • Methods inherited from interface javafx.beans.value.ObservableLongValue

    get

• Constructor Detail

  • LongProperty

    public LongProperty()

• Method Detail

  • setValue

    public void setValue(Number v)

    Set the wrapped value.

    Specified by:

    setValue in interface WritableLongValue

    Specified by:

    setValue in interface WritableValue<Number>

    Parameters:

    v - The new value

  • bindBidirectional

    public void bindBidirectional(Property<Number> other)

    Create a bidirectional binding between this Property and another one. Bidirectional bindings exists independently of unidirectional bindings. So it is possible to add unidirectional binding to a property with bidirectional binding and vice-versa. However, this practice is discouraged.

    It is possible to have multiple bidirectional bindings of one Property.

    JavaFX bidirectional binding implementation use weak listeners. This means bidirectional binding does not prevent properties from being garbage collected.

    Specified by:

    bindBidirectional in interface Property<Number>

    Parameters:

    other - the other Property

  • unbindBidirectional

    public void unbindBidirectional(Property<Number> other)

    Remove a bidirectional binding between this Property and another one. If no bidirectional binding between the properties exists, calling this method has no effect. It is possible to unbind by a call on the second property. This code will work:

    property1.bindBirectional(property2);
         property2.unbindBidirectional(property1);

    Specified by:

    unbindBidirectional in interface Property<Number>

    Parameters:

    other - the other Property

  • toString

    public String toString()

    Returns a string representation of this LongProperty object.

    Overrides:

    toString in class ReadOnlyLongProperty

    Returns:

    a string representation of this LongProperty object.

  • longProperty

    public static LongProperty longProperty(Property<Long> property)

    Returns a LongProperty that wraps a Property and 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 and a LongProperty.

    LongProperty 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);

    Another approach is to convert the LongProperty to ObjectProperty using asObject() method.

    Note: null values in the source property will be interpreted as 0L

    Parameters:

    property - The source Property

    Returns:

    A LongProperty that wraps the Property

    Throws:

    NullPointerException - if property is null

    Since:

    JavaFX 8.0

    See Also:

    asObject()

  • asObject

    public ObjectProperty<Long> asObject()

    Creates an ObjectProperty that bidirectionally bound to this LongProperty. If the value of this LongProperty changes, the value of the ObjectProperty will 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:

    asObject in class ReadOnlyLongProperty

    Returns:

    the new ObjectProperty

    Since:

    JavaFX 8.0