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oracle.javatools.util
Class Maps.WeakHashMap<K,V>
java.lang.Object
oracle.javatools.util.Maps.AbstractHashMap<K,V,Maps.WeakEntry<K,V>>
oracle.javatools.util.Maps.WeakHashMap<K,V>
- All Implemented Interfaces:
- java.io.Serializable, java.lang.Cloneable, java.util.Map<K,V>
- Enclosing class:
- Maps
-
public static class Maps.WeakHashMap<K,V>
- extends Maps.AbstractHashMap<K,V,Maps.WeakEntry<K,V>>
An implementation of Maps.AbstractHashMap
, based on Maps.WeakEntry
, which holds its values with WeakReference
s.
- See Also:
- Serialized Form
Nested classes/interfaces inherited from interface java.util.Map |
java.util.Map.Entry<K,V> |
Constructor Summary |
Maps.WeakHashMap()
Constructs an empty weak-referencing map with default capacity and load factor. |
Maps.WeakHashMap(int initialCapacity)
Constructs an empty weak-referencing map with specified initial capacity and default load factor. |
Maps.WeakHashMap(int initialCapacity, float loadFactor)
Constructs an empty weak-referencing map with specified initial capacity and load factor. |
Maps.WeakHashMap(java.util.Map<? extends K,? extends V> map)
Constructs a weak-referencing map with specified initial mappings, initial capacity based on the number of initial mappings, and default load factor. |
Methods inherited from class oracle.javatools.util.Maps.AbstractHashMap |
addEntry, capacity, change, clear, clone, containsKey, containsValue, createEntryIterator, createEntrySetIterator, createKeySetIterator, createValuesIterator, entryAccessed, entryAdded, entryChanged, entryPurged, entryRemoved, entrySet, equals, get, getChangeCount, getEntry, getQueue, hashCode, isEmpty, keyEquals, keyHashCode, keySet, loadFactor, mapChanged, mapConstructed, mapInitialized, purge, purgeEntry, put, putAll, remove, removeExistingEntry, removeKey, size, toString, valueEquals, valueHashCode, values |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Maps.WeakHashMap
public Maps.WeakHashMap()
- Constructs an empty weak-referencing map with default capacity and load factor.
- See Also:
Maps.AbstractHashMap.DEFAULT_INITIAL_CAPACITY
, Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR
Maps.WeakHashMap
public Maps.WeakHashMap(int initialCapacity)
- Constructs an empty weak-referencing map with specified initial capacity and default load factor.
- Parameters:
initialCapacity
- the initial capacity.
- Throws:
java.lang.IllegalArgumentException
- if the initial capacity is negative.
- See Also:
Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR
Maps.WeakHashMap
public Maps.WeakHashMap(int initialCapacity,
float loadFactor)
- Constructs an empty weak-referencing map with specified initial capacity and load factor.
- Parameters:
initialCapacity
- the initial capacity.
loadFactor
- the load factor.
- Throws:
java.lang.IllegalArgumentException
- if the initial capacity is negative or the load factor is nonpositive.
Maps.WeakHashMap
public Maps.WeakHashMap(java.util.Map<? extends K,? extends V> map)
- Constructs a weak-referencing map with specified initial mappings, initial capacity based on the number of initial mappings, and default load factor.
- Parameters:
map
- A map providing initial mappings.
- Throws:
java.lang.NullPointerException
- if the specified map is null.
- See Also:
Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR
createEntry
protected Maps.WeakEntry<K,V> createEntry(int hash,
K key,
V value,
Maps.WeakEntry<K,V> next)
- Creates an entry for this map.
The Maps.WeakHashMap
implementation creates Maps.WeakEntry
entries.
-
- Specified by:
createEntry
in class Maps.AbstractHashMap<K,V,Maps.WeakEntry<K,V>>
-
- Parameters:
hash
- The hashCode of the key for this entry.
key
- The key for this entry.
value
- The value for this entry.
next
- The entry to follow this entry in the entry chain.
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