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java.lang.Objectjava.util.AbstractMap
org.openorb.util.WeakValueHashMap
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(java.util.Map t)
Constructs a new WeakValueHashMap with the same mappings as the
specified Map. |
Method Summary | |
void |
clear()
Removes all mappings from this map. |
boolean |
containsKey(java.lang.Object key)
Returns true if this map contains a mapping for the
specified key. |
java.util.Set |
entrySet()
Returns a Set view of the mappings in this map. |
java.lang.Object |
get(java.lang.Object key)
Returns the value to which this map maps the specified key . |
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value)
Updates this map so that the given key maps to the given
value . |
java.lang.Object |
remove(java.lang.Object key)
Removes the mapping for the given key from this map, if
present. |
Methods inherited from class java.util.AbstractMap |
containsValue, equals, hashCode, isEmpty, keySet, putAll, size, toString, values |
Methods inherited from class java.lang.Object |
getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Map |
containsValue, equals, hashCode, isEmpty, keySet, putAll, size, values |
Constructor Detail |
public WeakValueHashMap(int initialCapacity, float loadFactor)
WeakValueHashMap
with the given
initial capacity and the given load factor.
initialCapacity
- The initial capacity of the
WeakValueHashMap
loadFactor
- The load factor of the WeakValueHashMap
java.lang.IllegalArgumentException
- If the initial capacity is less than
zero, or if the load factor is
nonpositivepublic WeakValueHashMap(int initialCapacity)
WeakValueHashMap
with the given
initial capacity and the default load factor, which is
0.75
.
initialCapacity
- The initial capacity of the
WeakValueHashMap
java.lang.IllegalArgumentException
- If the initial capacity is less than
zeropublic WeakValueHashMap()
WeakValueHashMap
with the default
initial capacity and the default load factor, which is
0.75
.
public WeakValueHashMap(java.util.Map t)
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.
t
- the map whose mappings are to be placed in this map.Method Detail |
public boolean containsKey(java.lang.Object key)
true
if this map contains a mapping for the
specified key.
containsKey
in interface java.util.Map
key
- The key whose presence in this map is to be testedpublic java.lang.Object get(java.lang.Object key)
key
.
If this map does not contain a value for this key, then return
null
.
get
in interface java.util.Map
key
- The key whose associated value, if any, is to be returnedpublic java.lang.Object put(java.lang.Object key, java.lang.Object value)
key
maps to the given
value
. If the map previously contained a mapping for
key
then that mapping is replaced and the previous value is
returned.
put
in interface java.util.Map
key
- The key that is to be mapped to the given
value
value
- The value to which the given key
is to be
mapped
null
if if there was no mapping for the keypublic java.lang.Object remove(java.lang.Object key)
key
from this map, if
present.
remove
in interface java.util.Map
key
- The key whose mapping is to be removed
null
if
there was no mapping for the keypublic void clear()
clear
in interface java.util.Map
public java.util.Set entrySet()
Set
view of the mappings in this map.
entrySet
in interface java.util.Map
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