de.tsl2.nano.collection

Class ReferenceMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

de.tsl2.nano.collection.ReferenceMap<K,V>

All Implemented Interfaces:

Serializable, Map<K,V>

Direct Known Subclasses:

TimedReferenceMap

public class ReferenceMap<K,V>
extends AbstractMap<K,V>
implements Serializable

See Also:

Serialized Form

Nested Class Summary

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

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

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
ReferenceMap() hashmap as weak map
ReferenceMap(boolean weak) constructor

Method Summary

Modifier and Type	Method and Description
void	clear()
protected Reference<V>	createReference(V value, ReferenceQueue<V> queue) creates a reference using weak to instantiate WeakReference or SoftReference.
Set<Map.Entry<K,V>>	entrySet() Returns a copy of the key/values in the map at the point of calling.
V	get(Object key)
V	put(K key, V value)
V	remove(Object key)
int	size()

Methods inherited from class java.util.AbstractMap

clone, containsKey, containsValue, equals, hashCode, isEmpty, keySet, putAll, toString, values

Methods inherited from class java.lang.Object

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

ReferenceMap

public ReferenceMap()

hashmap as weak map

ReferenceMap

public ReferenceMap(boolean weak)

constructor

Parameters:

weak - if false, SoftReferences will be used on it's values.

Method Detail

createReference

protected Reference<V> createReference(V value,
                                       ReferenceQueue<V> queue)

creates a reference using weak to instantiate WeakReference or SoftReference.

Parameters:

value - value

queue - queue

Returns:

new Reference instance

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<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>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class AbstractMap<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

Overrides:

size in class AbstractMap<K,V>

entrySet

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

Returns a copy of the key/values in the map at the point of calling. However, setValue still sets the value in the actual HashMap.

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>