Package org.eclipse.core.databinding.observable.map

Class BidiObservableMap<K,​V>

  • Type Parameters:
    K - type of the keys in the map
    V - type of the values in the map
    All Implemented Interfaces:
    Map<K,​V>, IDecoratingObservable, IObservable, IObservableMap<K,​V>
    public class BidiObservableMap<K,​V>
extends DecoratingObservableMap<K,​V>
    An

    This class is thread safe. All state accessing methods must be invoked from the current realm. Methods for adding and removing listeners may be invoked from any thread.

    Since:
    1.2

    • Constructor Detail

      • BidiObservableMap

        public BidiObservableMap​(IObservableMap<K,​V> wrappedMap)
        Constructs a BidirectionalMap tracking the given observable map.
        Parameters:
        wrappedMap - the observable map to track

    • Method Detail

      • handleMapChange

        protected void handleMapChange​(MapChangeEvent<? extends K,​? extends V> event)
        Description copied from class: DecoratingObservableMap
        Called whenever a MapChangeEvent is received from the decorated observable. By default, this method fires the map change event again, with the decorating observable as the event source. Subclasses may override to provide different behavior.
        Overrides:
        handleMapChange in class DecoratingObservableMap<K,​V>
        Parameters:
        event - the change event received from the decorated observable

      • getKeys

        public Set<K> getKeys​(Object value)
        Returns the Set of keys that currently map to the given value.
        Parameters:
        value - the value associated with the keys in the returned Set.
        Returns:
        the Set of keys that map to the given value. If no keys map to the given value, an empty set is returned.

      • dispose

        public void dispose()
        Description copied from interface: IObservable
        Disposes of this observable object, removing all listeners registered with this object, and all listeners this object might have registered on other objects.
        Specified by:
        dispose in interface IObservable
        Overrides:
        dispose in class DecoratingObservableMap<K,​V>

      • addListener

        protected void addListener​(Object listenerType,
                           IObservablesListener listener)
        Parameters:
        listenerType - arbitrary object to identify a type of the listener
        listener - the listener to add; not null

      • removeListener

        protected void removeListener​(Object listenerType,
                              IObservablesListener listener)
        Parameters:
        listenerType - arbitrary object to identify a type of the listener
        listener - the listener to remove; not null

      • hasListeners

        protected boolean hasListeners()

      • getRealm

        public Realm getRealm()
        Returns:
        Returns the realm.