ReadOnlyMapPropertyBase (JavaFX 17)

Module javafx.base
Package javafx.beans.property

## Class ReadOnlyMapPropertyBase<K,​V>

- java.lang.Object
- - javafx.beans.binding.MapExpression<K,​V>
  - - javafx.beans.property.ReadOnlyMapProperty<K,​V>
    - - javafx.beans.property.ReadOnlyMapPropertyBase<K,​V>

- All Implemented Interfaces:
    `Map<K,​V>`, `Observable`, `ReadOnlyProperty<ObservableMap<K,​V>>`, `ObservableMapValue<K,​V>`, `ObservableObjectValue<ObservableMap<K,​V>>`, `ObservableValue<ObservableMap<K,​V>>`, `ObservableMap<K,​V>`

      public abstract class ReadOnlyMapPropertyBase<K,​V>
      extends ReadOnlyMapProperty<K,​V>

  Base class for all readonly properties wrapping an `ObservableMap`. This class provides a default implementation to attach listener.
  Since:
    JavaFX 2.1
  See Also:
    `ReadOnlyMapProperty`

- - ### Property Summary

    - ### Properties declared in class javafx.beans.binding.MapExpression

      `empty, size`

  - ### Nested Class Summary

    - ### Nested classes/interfaces declared in interface java.util.Map

      `Map.Entry<K extends Object,​V extends Object>`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ReadOnlyMapPropertyBase()` | Creates a default `ReadOnlyMapPropertyBase`.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected void` | `fireValueChangedEvent()` | This method needs to be called if the reference to the `ObservableList` changes.
    `protected void` | `fireValueChangedEvent​(MapChangeListener.Change<? extends K,​? extends V> change)` | This method needs to be called if the content of the referenced `ObservableList` changes.

    - ### Methods declared in class javafx.beans.property.ReadOnlyMapProperty

      `bindContent, bindContentBidirectional, hashCode, toString, unbindContent, unbindContentBidirectional`

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

      `asString, emptyProperty, getSize, isEqualTo, isNotEqualTo, isNotNull, isNull, mapExpression, sizeProperty, valueAt, valueAt`

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

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

    - ### Methods declared in interface java.util.Map

      `clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values`

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

      `addListener, removeListener`

    - ### Methods declared in interface javafx.collections.ObservableMap

      `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.ReadOnlyProperty

      `getBean, getName`

- - ### Constructor Detail

    - #### ReadOnlyMapPropertyBase

          public ReadOnlyMapPropertyBase()

      Creates a default `ReadOnlyMapPropertyBase`.

  - ### Method Detail

    - #### fireValueChangedEvent

          protected void fireValueChangedEvent()

      This method needs to be called if the reference to the `ObservableList` changes. It sends notifications to all attached `InvalidationListeners`, `ChangeListeners`, and `ListChangeListener`. This method needs to be called, if the value of this property changes.

    - #### fireValueChangedEvent

          protected void fireValueChangedEvent​(MapChangeListener.Change<? extends K,​? extends V> change)

      This method needs to be called if the content of the referenced `ObservableList` changes. Sends notifications to all attached `InvalidationListeners`, `ChangeListeners`, and `ListChangeListener`. This method is called when the content of the list changes.
      Parameters:
        `change` - the change that needs to be propagated