org.eclipse.gef4.common.notify

Class ObservableMap<K,V>

java.lang.Object

com.google.common.collect.ForwardingObject

com.google.common.collect.ForwardingMap<K,V>

org.eclipse.gef4.common.notify.ObservableMap<K,V>

Type Parameters:

K - The type of the map's keys.

V - The type of the map's values.

All Implemented Interfaces:

java.util.Map<K,V>

public class ObservableMap<K,V>
extends com.google.common.collect.ForwardingMap<K,V>

An ObservableMap maintains a list of observers which are notified whenever the map changes.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ForwardingMap

com.google.common.collect.ForwardingMap.StandardEntrySet, com.google.common.collect.ForwardingMap.StandardKeySet, com.google.common.collect.ForwardingMap.StandardValues

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

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
ObservableMap()

Method Summary

Modifier and Type	Method and Description
void	addMapObserver(IMapObserver<K,V> mapObserver) Adds the given IMapObserver to the list of observers, which are notified on changes.
void	clear()
protected java.util.Map<K,V>	delegate()
protected java.util.Map<K,V>	getBackingMapCopy() Returns a copy of the backing map.
protected void	notifyChanged(java.util.Map<K,V> old) Notifies all observers that this map changed.
V	put(K key, V value)
void	putAll(java.util.Map<? extends K,? extends V> map)
V	remove(java.lang.Object key)
void	removeMapObserver(IMapObserver<K,V> mapObserver) Removes the given IMapObserver from the list of observers, which are notified on changes.

Methods inherited from class com.google.common.collect.ForwardingMap

containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, size, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

ObservableMap

public ObservableMap()

Method Detail

addMapObserver

public void addMapObserver(IMapObserver<K,V> mapObserver)

Adds the given IMapObserver to the list of observers, which are notified on changes.

Parameters:

mapObserver - The IMapObserver to add.

clear

public void clear()

Specified by:

clear in interface java.util.Map<K,V>

Overrides:

clear in class com.google.common.collect.ForwardingMap<K,V>

delegate

protected java.util.Map<K,V> delegate()

Overrides:

delegate in class com.google.common.collect.ForwardingMap<K,V>

getBackingMapCopy

protected java.util.Map<K,V> getBackingMapCopy()

Returns a copy of the backing map. This is used for reporting changes.

Returns:

A copy of the backing map.

notifyChanged

protected void notifyChanged(java.util.Map<K,V> old)

Notifies all observers that this map changed.

Parameters:

old - A copy of the map before the change.

put

public V put(K key,
             V value)

Specified by:

put in interface java.util.Map<K,V>

Overrides:

put in class com.google.common.collect.ForwardingMap<K,V>

putAll

public void putAll(java.util.Map<? extends K,? extends V> map)

Specified by:

putAll in interface java.util.Map<K,V>

Overrides:

putAll in class com.google.common.collect.ForwardingMap<K,V>

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,V>

Overrides:

remove in class com.google.common.collect.ForwardingMap<K,V>

removeMapObserver

public void removeMapObserver(IMapObserver<K,V> mapObserver)

Removes the given IMapObserver from the list of observers, which are notified on changes.

Parameters:

mapObserver - The IMapObserver to remove.