public class WeakHashMapPro<K,V> extends AbstractMapPro<K,V> implements MapPro<K,V>
AbstractMapPro.SimpleEntry<K,V>, AbstractMapPro.SimpleImmutableEntry<K,V>
Constructor and Description |
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WeakHashMapPro()
Constructs a new, empty WeakHashMap with the default initial
capacity (16) and load factor (0.75).
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WeakHashMapPro(int initialCapacity)
Constructs a new, empty WeakHashMap with the given initial
capacity and the default load factor (0.75).
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WeakHashMapPro(int initialCapacity,
float loadFactor)
Constructs a new, empty WeakHashMap with the given initial
capacity and the given load factor.
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WeakHashMapPro(Map<? extends K,? extends V> m)
Constructs a new WeakHashMap with the same mappings as the
specified map.
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Modifier and Type | Method and Description |
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void |
clear()
Removes all of the mappings from this map.
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boolean |
containsKey(Object key)
Returns true if this map contains a mapping for the
specified key.
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boolean |
containsValue(Object value)
Returns true if this map maps one or more keys to the
specified value.
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Set<Map.Entry<K,V>> |
entrySet()
Returns a
Set view of the mappings contained in this map. |
V |
g(K key) |
V |
g(K key,
V defaultValue) |
V |
get(Object key) |
boolean |
isEmpty()
Returns true if this map contains no key-value mappings.
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Set<K> |
keySet()
Returns a
Set view of the keys contained in this map. |
V |
put(K key,
V value)
Associates the specified value with the specified key in this map.
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void |
putAll(Map<? extends K,? extends V> m)
Copies all of the mappings from the specified map to this map.
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V |
r(K key) |
V |
r(K key,
V defaultValue) |
V |
remove(Object key)
Removes the mapping for a key from this weak hash map if it is present.
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int |
size()
Returns the number of key-value mappings in this map.
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Collection<V> |
values()
Returns a
Collection view of the values contained in this map. |
equals, invalidKey, readExternal, toString, writeExternal
public WeakHashMapPro(int initialCapacity, float loadFactor)
initialCapacity
- The initial capacity of the WeakHashMaploadFactor
- The load factor of the WeakHashMapIllegalArgumentException
- if the initial capacity is negative,
or if the load factor is nonpositive.public WeakHashMapPro(int initialCapacity)
initialCapacity
- The initial capacity of the WeakHashMapIllegalArgumentException
- if the initial capacity is negativepublic WeakHashMapPro()
public WeakHashMapPro(Map<? extends K,? extends V> m)
m
- the map whose mappings are to be placed in this mapNullPointerException
- if the specified map is nullpublic int size()
public boolean isEmpty()
public V get(Object key)
AbstractMapPro
This implementation iterates over entrySet() searching for an entry with the specified key. If such an entry is found, the entry's value is returned. If the iteration terminates without finding such an entry, null is returned. Note that this implementation requires linear time in the size of the map; many implementations will override this method.
public V g(K key) throws PageException
g
in interface MapPro<K,V>
PageException
public boolean containsKey(Object key)
containsKey
in interface Map<K,V>
containsKey
in class AbstractMapPro<K,V>
key
- The key whose presence in this map is to be testedpublic V put(K key, V value)
put
in interface Map<K,V>
put
in class AbstractMapPro<K,V>
key
- key with which the specified value is to be associated.value
- value to be associated with the specified key.public void putAll(Map<? extends K,? extends V> m)
putAll
in interface Map<K,V>
putAll
in class AbstractMapPro<K,V>
m
- mappings to be stored in this map.NullPointerException
- if the specified map is null.public V remove(Object key)
(key==null ? k==null :
key.equals(k))
, that mapping is removed. (The map can contain
at most one such mapping.)
Returns the value to which this map previously associated the key, or null if the map contained no mapping for the key. A return value of null does not necessarily indicate that the map contained no mapping for the key; it's also possible that the map explicitly mapped the key to null.
The map will not contain a mapping for the specified key once the call returns.
public V r(K key) throws PageException
r
in interface MapPro<K,V>
PageException
public void clear()
public boolean containsValue(Object value)
containsValue
in interface Map<K,V>
containsValue
in class AbstractMapPro<K,V>
value
- value whose presence in this map is to be testedpublic Set<K> keySet()
Set
view of the keys contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation), the results of
the iteration are undefined. The set supports element removal,
which removes the corresponding mapping from the map, via the
Iterator.remove, Set.remove,
removeAll, retainAll, and clear
operations. It does not support the add or addAll
operations.public Collection<V> values()
Collection
view of the values contained in this map.
The collection is backed by the map, so changes to the map are
reflected in the collection, and vice-versa. If the map is
modified while an iteration over the collection is in progress
(except through the iterator's own remove operation),
the results of the iteration are undefined. The collection
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Collection.remove, removeAll,
retainAll and clear operations. It does not
support the add or addAll operations.public Set<Map.Entry<K,V>> entrySet()
Set
view of the mappings contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation, or through the
setValue operation on a map entry returned by the
iterator) the results of the iteration are undefined. The set
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Set.remove, removeAll, retainAll and
clear operations. It does not support the
add or addAll operations.Copyright © 2015 Lucee