org.jboss.util.collection
Class WeakValueHashMap<K,V>
java.lang.Object
java.util.AbstractMap<K,V>
org.jboss.util.collection.ReferenceValueMap<K,V>
org.jboss.util.collection.ReferenceValueHashMap<K,V>
org.jboss.util.collection.WeakValueHashMap<K,V>
- Type Parameters:
K
- the key typeV
- the value type
- All Implemented Interfaces:
- Map<K,V>
public class WeakValueHashMap<K,V>
- extends ReferenceValueHashMap<K,V>
This Map will remove entries when the value in the map has been
cleaned from garbage collection
- Author:
- Bill Burke, Adrian Brock, Ales Justin
Nested classes/interfaces inherited from interface java.util.Map |
Map.Entry<K,V> |
Constructor Summary |
WeakValueHashMap()
Constructs a new, empty WeakValueHashMap with the default
initial capacity and the default load factor, which is
0.75 . |
WeakValueHashMap(int initialCapacity)
Constructs a new, empty WeakValueHashMap with the given
initial capacity and the default load factor, which is
0.75 . |
WeakValueHashMap(int initialCapacity,
float loadFactor)
Constructs a new, empty WeakValueHashMap with the given
initial capacity and the given load factor. |
WeakValueHashMap(Map<K,V> t)
Constructs a new WeakValueHashMap with the same mappings as the
specified Map. |
WeakValueHashMap
public WeakValueHashMap(int initialCapacity,
float loadFactor)
- Constructs a new, empty
WeakValueHashMap
with the given
initial capacity and the given load factor.
- Parameters:
initialCapacity
- The initial capacity of the
WeakValueHashMap
loadFactor
- The load factor of the WeakValueHashMap
- Throws:
IllegalArgumentException
- If the initial capacity is less than
zero, or if the load factor is
nonpositive
WeakValueHashMap
public WeakValueHashMap(int initialCapacity)
- Constructs a new, empty
WeakValueHashMap
with the given
initial capacity and the default load factor, which is
0.75
.
- Parameters:
initialCapacity
- The initial capacity of the
WeakValueHashMap
- Throws:
IllegalArgumentException
- If the initial capacity is less than
zero
WeakValueHashMap
public WeakValueHashMap()
- Constructs a new, empty
WeakValueHashMap
with the default
initial capacity and the default load factor, which is
0.75
.
WeakValueHashMap
public WeakValueHashMap(Map<K,V> t)
- Constructs a new
WeakValueHashMap
with the same mappings as the
specified Map. The WeakValueHashMap
is created with an
initial capacity of twice the number of mappings in the specified map
or 11 (whichever is greater), and a default load factor, which is
0.75.
- Parameters:
t
- the map whose mappings are to be placed in this map.- Since:
- 1.3
create
protected ValueRef<K,V> create(K key,
V value,
ReferenceQueue<V> q)
- Description copied from class:
ReferenceValueMap
- Create new value ref instance.
- Specified by:
create
in class ReferenceValueMap<K,V>
- Parameters:
key
- the keyvalue
- the valueq
- the ref queue
- Returns:
- new value ref instance
Copyright © 2011 JBoss, a division of Red Hat, Inc.. All Rights Reserved.