Module javafx.base
Package javafx.collections

Interface MapChangeListener<K,​V>

Type Parameters:
K - the key element type
V - the value element type
All Known Implementing Classes:
WeakMapChangeListener
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface
public interface MapChangeListener<K,​V>
Interface that receives notifications of changes to an ObservableMap.
Since:
JavaFX 2.0

  • Nested Class Summary

    Nested Classes
    Modifier and Type Interface Description
    static class  MapChangeListener.Change<K,​V>
    An elementary change done to an ObservableMap.

  • Method Summary

    Modifier and Type Method Description
    void onChanged​(MapChangeListener.Change<? extends K,​? extends V> change)
    Called after a change has been made to an ObservableMap.

  • Method Details

    • onChanged

      void onChanged​(MapChangeListener.Change<? extends K,​? extends V> change)
      Called after a change has been made to an ObservableMap. This method is called on every elementary change (put/remove) once. This means, complex changes like keySet().removeAll(Collection) or clear() may result in more than one call of onChanged method.
      Parameters:
      change - the change that was made