com.github.dm.jrt.util

Class WeakIdentityHashMap<K,V>

java.lang.Object

com.github.dm.jrt.util.WeakIdentityHashMap<K,V>

Type Parameters:

K - the key type.

V - the value type.

All Implemented Interfaces:

Map<K,V>

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

Map implementation combining the features of IdentityHashMap and WeakHashMap.

Note that the map entries might change each time the object is explicitly accessed.

Created by davide-maestroni on 11/17/2014.

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
WeakIdentityHashMap() Constructor.
WeakIdentityHashMap(int initialCapacity) Constructor.
WeakIdentityHashMap(int initialCapacity, float loadFactor) Constructor.
WeakIdentityHashMap(Map<? extends K,? extends V> map) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(Object o)
boolean	containsValue(Object o)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object o)
V	get(Object o)
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
V	put(K k, V v)
void	putAll(Map<? extends K,? extends V> map)
V	remove(Object o)
int	size()
Collection<V>	values()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WeakIdentityHashMap

public WeakIdentityHashMap()

Constructor.

WeakIdentityHashMap

public WeakIdentityHashMap(@NotNull
                   Map<? extends K,? extends V> map)

Constructor.

Parameters:

map - the initial content.

See Also:

HashMap.HashMap(java.util.Map)

WeakIdentityHashMap

public WeakIdentityHashMap(int initialCapacity)

Constructor.

Parameters:

initialCapacity - the initial capacity.

See Also:

HashMap.HashMap(int)

WeakIdentityHashMap

public WeakIdentityHashMap(int initialCapacity,
                   float loadFactor)

Constructor.

Parameters:

initialCapacity - the initial capacity.

loadFactor - the load factor.

See Also:

HashMap.HashMap(int, float)

Method Detail

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

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 o)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object o)

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object o)

Specified by:

get in interface Map<K,V>

put

public V put(K k,
    V v)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object o)

Specified by:

remove in interface Map<K,V>

putAll

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

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

keySet

@NotNull
public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

@NotNull
public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

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

Specified by:

entrySet in interface Map<K,V>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object