Package org.springframework.binding.collection

Class SharedMapDecorator<K,V>

java.lang.Object

org.springframework.binding.collection.SharedMapDecorator<K,V>

All Implemented Interfaces:

Serializable, Map<K,V>, SharedMap<K,V>

public class SharedMapDecorator<K,V>
extends Object
implements SharedMap<K,V>, Serializable

A map decorator that implements SharedMap. By default, simply returns the map itself as the mutex. Subclasses may override to return a different mutex object.

Author:

Keith Donald

See Also:

• Serialized Form

Nested Class Summary

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

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

Constructor Summary

Constructors

Constructor	Description
SharedMapDecorator(Map<K,V> map)	Creates a new shared map decorator.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
Object	getMutex()	Returns the shared mutex that may be synchronized on using a synchronized block.
boolean	isEmpty()
Set<K>	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> map)
V	remove(Object key)
int	size()
String	toString()
Collection<V>	values()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

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

Constructor Details

SharedMapDecorator

public SharedMapDecorator(Map<K,V> map)

Creates a new shared map decorator.

Parameters:

map - the map that is shared by multiple threads, to be synced

Method Details

clear

public void clear()

Specified by:

clear 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>

entrySet

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

Specified by:

entrySet in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

putAll

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

Specified by:

putAll in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

getMutex

public Object getMutex()

Description copied from interface: SharedMap

Returns the shared mutex that may be synchronized on using a synchronized block. The returned mutex is guaranteed to be non-null. Example usage:

 synchronized (sharedMap.getMutex()) {
        // do synchronized work
 }
 

Specified by:

getMutex in interface SharedMap<K,V>

Returns:

the mutex

toString

public String toString()

Overrides:

toString in class Object