org.apache.commons.collections.map
Class HashedMap
- Cloneable, Map, Serializable, IterableMap
public class HashedMap
implements Serializable, Cloneable
A
Map implementation that is a general purpose alternative
to
HashMap.
This implementation improves on the JDK1.4 HashMap by adding the
MapIterator
functionality and many methods for subclassing.
Note that HashedMap is not synchronized and is not thread-safe.
If you wish to use this map from multiple threads concurrently, you must use
appropriate synchronization. The simplest approach is to wrap this map
using
java.util.Collections.synchronizedMap(Map). This class may throw
exceptions when accessed by concurrent threads without synchronization.
$Revision: 348007 $ $Date: 2005-11-21 22:52:57 +0000 (Mon, 21 Nov 2005) $
DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR, DEFAULT_THRESHOLD, GETKEY_INVALID, GETVALUE_INVALID, MAXIMUM_CAPACITY, NO_NEXT_ENTRY, NO_PREVIOUS_ENTRY, NULL, REMOVE_INVALID, SETVALUE_INVALID, data, entrySet, keySet, loadFactor, modCount, size, threshold, values |
HashedMap()- Constructs a new empty map with default size and load factor.
|
HashedMap(Map map)- Constructor copying elements from another map.
|
HashedMap(int initialCapacity)- Constructs a new, empty map with the specified initial capacity.
|
HashedMap(int initialCapacity, float loadFactor)- Constructs a new, empty map with the specified initial capacity and
load factor.
|
Object | clone()- Clones the map without cloning the keys or values.
|
addEntry, addMapping, calculateNewCapacity, calculateThreshold, checkCapacity, clear, clone, containsKey, containsValue, convertKey, createEntry, createEntrySetIterator, createKeySetIterator, createValuesIterator, destroyEntry, doReadObject, doWriteObject, ensureCapacity, entryHashCode, entryKey, entryNext, entrySet, entryValue, equals, get, getEntry, hash, hashCode, hashIndex, init, isEmpty, isEqualKey, isEqualValue, keySet, mapIterator, put, putAll, remove, removeEntry, removeMapping, reuseEntry, size, toString, updateEntry, values |
HashedMap
public HashedMap()
Constructs a new empty map with default size and load factor.
HashedMap
public HashedMap(Map map)
Constructor copying elements from another map.
HashedMap
public HashedMap(int initialCapacity)
Constructs a new, empty map with the specified initial capacity.
initialCapacity - the initial capacity
HashedMap
public HashedMap(int initialCapacity,
float loadFactor) Constructs a new, empty map with the specified initial capacity and
load factor.
initialCapacity - the initial capacityloadFactor - the load factor
clone
public Object clone()
Clones the map without cloning the keys or values.
- clone in interface AbstractHashedMap
Copyright © 2001-2015 Apache Software Foundation. All Rights Reserved.