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Java Source Code / Java Documentation » Web Framework » rife 1.6.1 » com.uwyn.rife.pcj.map

Source Cross Reference Class Diagram Java Document (Java Doc)

com.uwyn.rife.pcj.map .CharKeyOpenHashMap

CharKeyOpenHashMap
public class CharKeyOpenHashMap extends AbstractCharKeyMap implements CharKeyMap<E>,Cloneable,Serializable(Code)
	This class represents open addressing hash table based maps from char values to objects. See Also: java.util.Map author: Søren Bak version: 1.3 21-08-2003 19:45 since: 1.0

Field Summary
final public static int	DEFAULT_CAPACITY The default capacity of this map.
final public static int	DEFAULT_GROWTH_CHUNK The default chunk size with which to increase the capacity of this map.
final public static double	DEFAULT_GROWTH_FACTOR The default factor with which to increase the capacity of this map.
final public static double	DEFAULT_LOAD_FACTOR The default load factor of this map.

Constructor Summary
public	CharKeyOpenHashMap() Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.
public	CharKeyOpenHashMap(CharKeyMap map) Creates a new hash map with the same mappings as a specified map.
public	CharKeyOpenHashMap(int capacity) Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.
public	CharKeyOpenHashMap(double loadFactor) Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.
public	CharKeyOpenHashMap(int capacity, double loadFactor) Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.
public	CharKeyOpenHashMap(int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.
public	CharKeyOpenHashMap(int capacity, double loadFactor, int growthChunk) Creates a new hash map with a specified capacity, load factor, and absolute growth factor. The map capacity increases to `capacity()+growthChunk`. This strategy is good for avoiding wasting memory.
public	CharKeyOpenHashMap(CharHashFunction keyhash) Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.
public	CharKeyOpenHashMap(CharHashFunction keyhash, int capacity) Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.
public	CharKeyOpenHashMap(CharHashFunction keyhash, double loadFactor) Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.
public	CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor) Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.
public	CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.
public	CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor, int growthChunk) Creates a new hash map with a specified capacity, load factor, and absolute growth factor. The map capacity increases to `capacity()+growthChunk`. This strategy is good for avoiding wasting memory.

Method Summary
public void	clear()
public CharKeyOpenHashMap<E>	clone() Returns a clone of this hash map.
public boolean	containsKey(char key)
public boolean	containsValue(Object value)
public CharKeyMapIterator<E>	entries()
public E	get(char key)
public boolean	isEmpty()
public CharSet	keySet()
public E	put(char key, E value)
public E	remove(char key)
public int	size()
public Collection<E>	values()

Field Detail

DEFAULT_CAPACITY
final public static int DEFAULT_CAPACITY(Code)
	The default capacity of this map.

DEFAULT_GROWTH_CHUNK
final public static int DEFAULT_GROWTH_CHUNK(Code)
	The default chunk size with which to increase the capacity of this map.

DEFAULT_GROWTH_FACTOR
final public static double DEFAULT_GROWTH_FACTOR(Code)
	The default factor with which to increase the capacity of this map.

DEFAULT_LOAD_FACTOR
final public static double DEFAULT_LOAD_FACTOR(Code)
	The default load factor of this map.

Constructor Detail

CharKeyOpenHashMap
public CharKeyOpenHashMap()(Code)
	Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharKeyMap map)(Code)
	Creates a new hash map with the same mappings as a specified map. Parameters: map - the map whose mappings to put into the new map. throws: NullPointerException - if `map` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(int capacity)(Code)
	Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%. Parameters: capacity - the initial capacity of the map. throws: IllegalArgumentException - if `capacity` is negative.

CharKeyOpenHashMap
public CharKeyOpenHashMap(double loadFactor)(Code)
	Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor. Parameters: loadFactor - the load factor of the map. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive.

CharKeyOpenHashMap
public CharKeyOpenHashMap(int capacity, double loadFactor)(Code)
	Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0. Parameters: capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive.

CharKeyOpenHashMap
public CharKeyOpenHashMap(int capacity, double loadFactor, double growthFactor)(Code)
	Creates a new hash map with a specified capacity, load factor, and relative growth factor. The map capacity increases to `capacity()(1+growthFactor)`. This strategy is good for avoiding many capacity increases, but the amount of wasted memory is approximately the size of the map. Parameters:* capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. Parameters: growthFactor - the relative amount with which to increase thethe capacity when a capacity increase is needed. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive;if `growthFactor` is not positive.

CharKeyOpenHashMap
public CharKeyOpenHashMap(int capacity, double loadFactor, int growthChunk)(Code)
	Creates a new hash map with a specified capacity, load factor, and absolute growth factor. The map capacity increases to `capacity()+growthChunk`. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases. Parameters: capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. Parameters: growthChunk - the absolute amount with which to increase thethe capacity when a capacity increase is needed. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive;if `growthChunk` is not positive.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash)(Code)
	Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%. Parameters: keyhash - the hash function to use when hashing keys. throws: NullPointerException - if `keyhash` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash, int capacity)(Code)
	Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%. Parameters: keyhash - the hash function to use when hashing keys. Parameters: capacity - the initial capacity of the map. throws: IllegalArgumentException - if `capacity` is negative. throws: NullPointerException - if `keyhash` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash, double loadFactor)(Code)
	Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor. Parameters: keyhash - the hash function to use when hashing keys. Parameters: loadFactor - the load factor of the map. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive. throws: NullPointerException - if `keyhash` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor)(Code)
	Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0. Parameters: keyhash - the hash function to use when hashing keys. Parameters: capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive. throws: NullPointerException - if `keyhash` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor, double growthFactor)(Code)
	Creates a new hash map with a specified capacity, load factor, and relative growth factor. The map capacity increases to `capacity()(1+growthFactor)`. This strategy is good for avoiding many capacity increases, but the amount of wasted memory is approximately the size of the map. Parameters:* keyhash - the hash function to use when hashing keys. Parameters: capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. Parameters: growthFactor - the relative amount with which to increase thethe capacity when a capacity increase is needed. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive;if `growthFactor` is not positive. throws: NullPointerException - if `keyhash` is `null`.

CharKeyOpenHashMap
public CharKeyOpenHashMap(CharHashFunction keyhash, int capacity, double loadFactor, int growthChunk)(Code)
	Creates a new hash map with a specified capacity, load factor, and absolute growth factor. The map capacity increases to `capacity()+growthChunk`. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases. Parameters: keyhash - the hash function to use when hashing keys. Parameters: capacity - the initial capacity of the map. Parameters: loadFactor - the load factor of the map. Parameters: growthChunk - the absolute amount with which to increase thethe capacity when a capacity increase is needed. throws: IllegalArgumentException - if `capacity` is negative;if `loadFactor` is not positive;if `growthChunk` is not positive. throws: NullPointerException - if `keyhash` is `null`.

Method Detail

clear
public void clear()(Code)

clone
public CharKeyOpenHashMap<E> clone()(Code)
	Returns a clone of this hash map. a clone of this hash map. since: 1.1

containsKey
public boolean containsKey(char key)(Code)

containsValue
public boolean containsValue(Object value)(Code)

entries
public CharKeyMapIterator<E> entries()(Code)

get
public E get(char key)(Code)

isEmpty
public boolean isEmpty()(Code)

keySet
public CharSet keySet()(Code)

put
public E put(char key, E value)(Code)

remove
public E remove(char key)(Code)

size
public int size()(Code)

values
public Collection<E> values()(Code)

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