ObjectPropertyBase (JavaFX 17)

Module javafx.base
Package javafx.beans.property

## Class ObjectPropertyBase<T>

- java.lang.Object
- - javafx.beans.binding.ObjectExpression<T>
  - - javafx.beans.property.ReadOnlyObjectProperty<T>
    - - javafx.beans.property.ObjectProperty<T>
      - - javafx.beans.property.ObjectPropertyBase<T>

- Type Parameters:
    `T` - the type of the wrapped value
  All Implemented Interfaces:
    `Observable`, `Property<T>`, `ReadOnlyProperty<T>`, `ObservableObjectValue<T>`, `ObservableValue<T>`, `WritableObjectValue<T>`, `WritableValue<T>`
  Direct Known Subclasses:
    `SimpleObjectProperty`, `StyleableObjectProperty`

      public abstract class ObjectPropertyBase<T>
      extends ObjectProperty<T>

  The class `ObjectPropertyBase` is the base class for a property wrapping an arbitrary `Object`. It provides all the functionality required for a property except for the `ReadOnlyProperty.getBean()` and `ReadOnlyProperty.getName()` methods, which must be implemented by extending classes.
  Since:
    JavaFX 2.0
  See Also:
    `ObjectProperty`

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ObjectPropertyBase()` | The constructor of the `ObjectPropertyBase`.
    `ObjectPropertyBase​(T initialValue)` | The constructor of the `ObjectPropertyBase`.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected void` | `fireValueChangedEvent()` | Sends notifications to all attached `InvalidationListeners` and `ChangeListeners`.
    `protected void` | `invalidated()` | The method `invalidated()` can be overridden to receive invalidation notifications.
    `String` | `toString()` | Returns a string representation of this `ObjectPropertyBase` object.

    - ### Methods declared in class javafx.beans.binding.ObjectExpression

      `asString, asString, asString, isEqualTo, isEqualTo, isNotEqualTo, isNotEqualTo, isNotNull, isNull, objectExpression`

    - ### Methods declared in class java.lang.Object

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

    - ### Methods declared in interface javafx.beans.Observable

      `addListener, removeListener`

    - ### Methods declared in interface javafx.beans.value.ObservableObjectValue

      `get`

    - ### Methods declared in interface javafx.beans.value.ObservableValue

      `addListener, getValue, removeListener`

    - ### Methods declared in interface javafx.beans.property.Property

      `bind, bindBidirectional, isBound, unbind, unbindBidirectional`

    - ### Methods declared in interface javafx.beans.property.ReadOnlyProperty

      `getBean, getName`

    - ### Methods declared in interface javafx.beans.value.WritableObjectValue

      `get, set`

    - ### Methods declared in interface javafx.beans.value.WritableValue

      `getValue, setValue`

- - ### Constructor Detail

    - #### ObjectPropertyBase

          public ObjectPropertyBase()

      The constructor of the `ObjectPropertyBase`.

    - #### ObjectPropertyBase

          public ObjectPropertyBase​(T initialValue)

      The constructor of the `ObjectPropertyBase`.
      Parameters:
        `initialValue` - the initial value of the wrapped `Object`

  - ### Method Detail

    - #### fireValueChangedEvent

          protected void fireValueChangedEvent()

      Sends notifications to all attached `InvalidationListeners` and `ChangeListeners`. This method is called when the value is changed, either manually by calling `WritableObjectValue.set(T)` or in case of a bound property, if the binding becomes invalid.

    - #### invalidated

          protected void invalidated()

      The method `invalidated()` can be overridden to receive invalidation notifications. This is the preferred option in `Objects` defining the property, because it requires less memory. The default implementation is empty.

    - #### toString

          public String toString()

      Returns a string representation of this `ObjectPropertyBase` object.
      Overrides:
        `toString` in class `ObjectProperty<T>`
      Returns:
        a string representation of this `ObjectPropertyBase` object.