Package org.springframework.statemachine.support

Class ObservableMap<K,V>

java.lang.Object

org.springframework.statemachine.support.ObservableMap<K,V>

Type Parameters:

K - the type of key

V - the type of value

All Implemented Interfaces:

Map<K,V>

public class ObservableMap<K,V>
extends Object
implements Map<K,V>

Utility class which wraps Map and notifies ObservableMap.MapChangeListener of changes for individual change operations.

Author:

Janne Valkealahti

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ObservableMap.MapChangeListener<K,V>	The listener interface for receiving map change events.

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

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

Constructor Summary

Constructors

Constructor	Description
ObservableMap()	Instantiates a new observable map.
ObservableMap(Map<K,V> map, ObservableMap.MapChangeListener<K,V> listener)	Instantiates a new observable map.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object obj)
V	get(Object key)
Map<K,V>	getDelegate()	Gets the delegating map instance.
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)
void	setDelegate(Map<K,V> delegate)	Sets the delegate.
void	setListener(ObservableMap.MapChangeListener<K,V> listener)	Sets the map change listener.
int	size()
String	toString()
Collection<V>	values()

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 Details

ObservableMap

public ObservableMap()

Instantiates a new observable map.

ObservableMap

public ObservableMap(Map<K,V> map,
 ObservableMap.MapChangeListener<K,V> listener)

Instantiates a new observable map.

Parameters:

map - the delegating map

listener - the map change listener

Method Details

size

public int size()

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

putAll

public void putAll(Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

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

Specified by:

entrySet in interface Map<K,V>

toString

public String toString()

Overrides:

toString in class Object

getDelegate

public Map<K,V> getDelegate()

Gets the delegating map instance.

Returns:

the delegate

setDelegate

public void setDelegate(Map<K,V> delegate)

Sets the delegate.

Parameters:

delegate - the delegate

setListener

public void setListener(ObservableMap.MapChangeListener<K,V> listener)

Sets the map change listener.

Parameters:

listener - the listener

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object