Package org.aksw.commons.collection.observable

Class ObservableMapImpl<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

org.aksw.commons.collection.observable.ObservableMapImpl<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

Map<K,V>, ObservableMap<K,V>

public class ObservableMapImpl<K,V>
extends AbstractMap<K,V>
implements ObservableMap<K,V>

A map the fires events on changes. Changes are also triggered on operations on the entrySet() and .entrySet().iterater().remove(). Changes are tracked in a CollectionChangedEventImpl instance which implements PropertyChangeEvent. The old value is the this map before the change, and the new value is a view with the pending changes applied. Hence, no needless copying in performed. Event handlers need to to make copies if they want a static snapshot using e.g. new LinkedHashMap<>((Map<Foo,Bar>)event.getNewValue()) TODO keySet() entrySt and values() should return ObservableCollections.

Author:

raven

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ObservableMapImpl.ObservableKeySet

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

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

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<K,V>	delegate
protected PropertyChangeSupport	pcs
protected VetoableChangeSupport	vcs

Constructor Summary

Constructors

Constructor	Description
ObservableMapImpl(Map<K,V> delegate)

Method Summary

Modifier and Type	Method	Description
Registration	addPropertyChangeListener(PropertyChangeListener listener)
Runnable	addVetoableChangeListener(VetoableChangeListener listener)
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
static <K, V> ObservableMap<K,V>	decorate(Map<K,V> delegate)
protected V	doRemoveEntry(K key, V v)
Set<Map.Entry<K,V>>	entrySet()	TODO The result should be an ObservableSet
ObservableSet<K>	keySet()
protected void	notifyClear()
V	put(K key, V value)
V	remove(Object key)
Collection<V>	values()

Methods inherited from class java.util.AbstractMap

clone, equals, get, hashCode, isEmpty, putAll, size, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, get, getOrDefault, hashCode, isEmpty, merge, putAll, putIfAbsent, remove, replace, replace, replaceAll, size

Methods inherited from interface org.aksw.commons.collection.observable.ObservableMap

observeKey, observeKey

Field Details

delegate

protected Map<K,V> delegate

vcs

protected VetoableChangeSupport vcs

pcs

protected PropertyChangeSupport pcs

Constructor Details

ObservableMapImpl

public ObservableMapImpl(Map<K,V> delegate)

Method Details

decorate

public static <K,
V> ObservableMap<K,V> decorate(Map<K,V> delegate)

addVetoableChangeListener

public Runnable addVetoableChangeListener(VetoableChangeListener listener)

Specified by:

addVetoableChangeListener in interface ObservableMap<K,V>

addPropertyChangeListener

public Registration addPropertyChangeListener(PropertyChangeListener listener)

Specified by:

addPropertyChangeListener in interface ObservableMap<K,V>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

Overrides:

put in class AbstractMap<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class AbstractMap<K,V>

doRemoveEntry

protected V doRemoveEntry(K key,
 V v)

notifyClear

protected void notifyClear()

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class AbstractMap<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

Overrides:

containsValue in class AbstractMap<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class AbstractMap<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

TODO The result should be an ObservableSet

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

keySet

public ObservableSet<K> keySet()

Specified by:

keySet in interface Map<K,V>

Specified by:

keySet in interface ObservableMap<K,V>

Overrides:

keySet in class AbstractMap<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

Overrides:

values in class AbstractMap<K,V>