Class ComputedObservableMap<K,V>
java.lang.Object
java.util.AbstractMap<K,V>
org.eclipse.core.databinding.observable.map.AbstractObservableMap<K,V>
org.eclipse.core.databinding.observable.map.ComputedObservableMap<K,V>
- Type Parameters:
K- type of the keys to the mapV- type of the values in the map
- All Implemented Interfaces:
Map<K,,V> IObservable,IObservableMap<K,V>
Maps objects to one of their attributes. Tracks changes to the underlying
observable set of objects (keys), as well as changes to attribute values.
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Nested Class Summary
Nested classes/interfaces inherited from class java.util.AbstractMap
AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K, V> -
Constructor Summary
ConstructorsConstructorDescriptionComputedObservableMap(IObservableSet<K> keySet) ComputedObservableMap(IObservableSet<K> keySet, Object valueType) -
Method Summary
Modifier and TypeMethodDescriptionbooleancontainsKey(Object key) voiddispose()Disposes of this observable object, removing all listeners registered with this object, and all listeners this object might have registered on other objects.protected abstract Vprotected abstract VentrySet()protected final voidfireSingleChange(K key, V oldValue, V newValue) protected voidfinal VReturns the element type for thekeysetof this observable map, ornullif the keyset is untyped.Returns the element type for thevaluesof this observable map, ornullif the values collection is untyped.protected abstract voidhookListener(K addedKey) protected voidinit()Deprecated.Subclasses are no longer required to call this method.booleanisStale()Returns whether the state of this observable is stale and is expected to change soon.keySet()protected voidfinal Vprotected abstract voidunhookListener(K removedKey) Methods inherited from class org.eclipse.core.databinding.observable.map.AbstractObservableMap
addChangeListener, addDisposeListener, addMapChangeListener, addStaleListener, checkRealm, fireChange, fireMapChange, fireStale, getRealm, hasListeners, isDisposed, removeChangeListener, removeDisposeListener, removeMapChangeListener, removeStaleListener, setStaleMethods inherited from class java.util.AbstractMap
clear, clone, containsValue, equals, hashCode, isEmpty, putAll, size, toString, valuesMethods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface org.eclipse.core.databinding.observable.map.IObservableMap
containsValue, equals, hashCode, isEmpty, size, valuesMethods inherited from interface java.util.Map
clear, compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putAll, putIfAbsent, remove, replace, replace, replaceAll
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Constructor Details
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ComputedObservableMap
- Parameters:
keySet- the key set
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ComputedObservableMap
- Parameters:
keySet- the key setvalueType- the value type- Since:
- 1.2
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Method Details
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init
Deprecated.Subclasses are no longer required to call this method. -
firstListenerAdded
protected void firstListenerAdded()- Overrides:
firstListenerAddedin classAbstractObservableMap<K,V>
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lastListenerRemoved
protected void lastListenerRemoved()- Overrides:
lastListenerRemovedin classAbstractObservableMap<K,V>
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fireSingleChange
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getKeyType
Description copied from interface:IObservableMapReturns the element type for thekeysetof this observable map, ornullif the keyset is untyped.- Specified by:
getKeyTypein interfaceIObservableMap<K,V> - Overrides:
getKeyTypein classAbstractObservableMap<K,V> - Returns:
- the element type for the
keysetof this observable map, ornullif the keyset is untyped. - Since:
- 1.2
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getValueType
Description copied from interface:IObservableMapReturns the element type for thevaluesof this observable map, ornullif the values collection is untyped.- Specified by:
getValueTypein interfaceIObservableMap<K,V> - Overrides:
getValueTypein classAbstractObservableMap<K,V> - Returns:
- the element type for the
valuesof this observable map, ornullif the values collection is untyped. - Since:
- 1.2
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remove
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containsKey
- Specified by:
containsKeyin interfaceIObservableMap<K,V> - Specified by:
containsKeyin interfaceMap<K,V> - Overrides:
containsKeyin classAbstractMap<K,V> - Since:
- 1.3
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entrySet
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keySet
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get
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put
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unhookListener
- Parameters:
removedKey- element to remove listener from
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hookListener
- Parameters:
addedKey- element to add listener to
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doGet
- Parameters:
key- the key- Returns:
- the value for the given key
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doPut
- Parameters:
key- the keyvalue- key's new value- Returns:
- the old value for the given key
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isStale
public boolean isStale()Description copied from interface:IObservableReturns whether the state of this observable is stale and is expected to change soon. A non-stale observable that becomes stale will notify its stale listeners. A stale object that becomes non-stale does so by changing its state and notifying its change listeners, it does not notify its stale listeners about becoming non-stale. Clients that do not expect asynchronous changes may ignore staleness of observable objects.- Specified by:
isStalein interfaceIObservable- Overrides:
isStalein classAbstractObservableMap<K,V> - Returns:
- true if this observable's state is stale and will change soon.
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dispose
public void dispose()Description copied from interface:IObservableDisposes of this observable object, removing all listeners registered with this object, and all listeners this object might have registered on other objects.- Specified by:
disposein interfaceIObservable- Overrides:
disposein classAbstractObservableMap<K,V>
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