Package org.apache.pivot.collections

Interface MapListener<K,​V>

  • Type Parameters:
    K - Type of key object used in this map.
    V - Type of value object stored for each key.
    All Known Implementing Classes:
    MapListener.Adapter, MapListener.Listeners
    public interface MapListener<K,​V>
    Map listener interface.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static class  MapListener.Adapter<K,​V>
      Deprecated.
      Since 2.1 and Java 8 the interface itself has default implementations.
      static class  MapListener.Listeners<K,​V>
      Map listeners.

    • Method Summary

      All Methods Instance Methods Default Methods 
      Modifier and Type Method Description
      default void comparatorChanged​(Map<K,​V> map, java.util.Comparator<K> previousComparator)
      Called when a map's comparator has changed.
      default void mapCleared​(Map<K,​V> map)
      Called when map data has been reset.
      default void valueAdded​(Map<K,​V> map, K key)
      Called when a key/value pair has been added to a map.
      default void valueRemoved​(Map<K,​V> map, K key, V value)
      Called when a key/value pair has been removed from a map.
      default void valueUpdated​(Map<K,​V> map, K key, V previousValue)
      Called when a map value has been updated.

    • Method Detail

      • valueAdded

        default void valueAdded​(Map<K,​V> map,
                        K key)
        Called when a key/value pair has been added to a map.
        Parameters:
        map - The source of the map event.
        key - The key that was added to the map.

      • valueUpdated

        default void valueUpdated​(Map<K,​V> map,
                          K key,
                          V previousValue)
        Called when a map value has been updated.
        Parameters:
        map - The source of the map event.
        key - The key whose value was updated.
        previousValue - The value that was previously associated with the key.

      • valueRemoved

        default void valueRemoved​(Map<K,​V> map,
                          K key,
                          V value)
        Called when a key/value pair has been removed from a map.
        Parameters:
        map - The source of the map event.
        key - The key that was removed.
        value - The value that was removed.

      • mapCleared

        default void mapCleared​(Map<K,​V> map)
        Called when map data has been reset.
        Parameters:
        map - The source of the map event.

      • comparatorChanged

        default void comparatorChanged​(Map<K,​V> map,
                               java.util.Comparator<K> previousComparator)
        Called when a map's comparator has changed.
        Parameters:
        map - The source of the event.
        previousComparator - The previous comparator value.