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java.lang.Object | +--gnu.trove.THash | +--gnu.trove.TPrimitiveHash | +--gnu.trove.TIntHash | +--gnu.trove.TIntFloatHashMap
An open addressed Map implementation for int keys and float values. Created: Sun Nov 4 08:52:45 2001
Field Summary | |
protected float[] |
_values
the values of the map |
Fields inherited from class gnu.trove.TIntHash |
_hashingStrategy, _set |
Fields inherited from class gnu.trove.TPrimitiveHash |
_states, FREE, FULL, REMOVED |
Fields inherited from class gnu.trove.THash |
_free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR |
Constructor Summary | |
TIntFloatHashMap()
Creates a new TIntFloatHashMap instance with the default
capacity and load factor. |
|
TIntFloatHashMap(int initialCapacity)
Creates a new TIntFloatHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
|
TIntFloatHashMap(int initialCapacity,
float loadFactor)
Creates a new TIntFloatHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TIntFloatHashMap(int initialCapacity,
float loadFactor,
TIntHashingStrategy strategy)
Creates a new TIntFloatHashMap instance with a prime
value at or near the specified capacity and load factor. |
|
TIntFloatHashMap(int initialCapacity,
TIntHashingStrategy strategy)
Creates a new TIntFloatHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TIntFloatHashMap(TIntHashingStrategy strategy)
Creates a new TIntFloatHashMap instance with the default
capacity and load factor. |
Method Summary | |
boolean |
adjustValue(int key,
float amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
java.lang.Object |
clone()
|
boolean |
containsKey(int key)
checks for the present of key in the keys of the map. |
boolean |
containsValue(float val)
checks for the presence of val in the values of the map. |
boolean |
equals(java.lang.Object other)
Compares this map with another map for equality of their stored entries. |
boolean |
forEachEntry(TIntFloatProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TIntProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TFloatProcedure procedure)
Executes procedure for each value in the map. |
float |
get(int key)
retrieves the value for key |
float[] |
getValues()
Returns the values of the map. |
int |
hashCode()
|
boolean |
increment(int key)
Increments the primitive value mapped to key by 1 |
TIntFloatIterator |
iterator()
|
int[] |
keys()
returns the keys of the map. |
float |
put(int key,
float value)
Inserts a key/value pair into the map. |
protected void |
rehash(int newCapacity)
rehashes the map to the new capacity. |
float |
remove(int key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TIntFloatProcedure procedure)
Retains only those entries in the map for which the procedure returns a true value. |
protected int |
setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least initialCapacity + 1. |
void |
transformValues(TFloatFunction function)
Transform the values in this map using function. |
Methods inherited from class gnu.trove.TIntHash |
computeHashCode, contains, forEach, index, insertionIndex |
Methods inherited from class gnu.trove.TPrimitiveHash |
capacity |
Methods inherited from class gnu.trove.THash |
compact, ensureCapacity, isEmpty, postInsertHook, size, trimToSize |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected transient float[] _values
Constructor Detail |
public TIntFloatHashMap()
TIntFloatHashMap
instance with the default
capacity and load factor.
public TIntFloatHashMap(int initialCapacity)
TIntFloatHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
valuepublic TIntFloatHashMap(int initialCapacity, float loadFactor)
TIntFloatHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
valuepublic TIntFloatHashMap(TIntHashingStrategy strategy)
TIntFloatHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.public TIntFloatHashMap(int initialCapacity, TIntHashingStrategy strategy)
TIntFloatHashMap
instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
initialCapacity
- an int
valuestrategy
- used to compute hash codes and to compare keys.public TIntFloatHashMap(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)
TIntFloatHashMap
instance with a prime
value at or near the specified capacity and load factor.
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which
rehashing takes place.strategy
- used to compute hash codes and to compare keys.Method Detail |
public java.lang.Object clone()
clone
in class TIntHash
public TIntFloatIterator iterator()
protected int setUp(int initialCapacity)
setUp
in class TIntHash
initialCapacity
- an int
value
public float put(int key, float value)
key
- an int
valuevalue
- an float
value
protected void rehash(int newCapacity)
rehash
in class THash
newCapacity
- an int
valuepublic float get(int key)
key
- an int
value
public void clear()
clear
in class THash
public float remove(int key)
key
- an int
value
float
value, or (float)0 if no mapping for key existspublic boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- an Object
value
boolean
valuepublic int hashCode()
hashCode
in class java.lang.Object
protected void removeAt(int index)
removeAt
in class TIntHash
index
- an int
valuepublic float[] getValues()
Collection
valuepublic int[] keys()
Set
valuepublic boolean containsValue(float val)
val
- an float
value
boolean
valuepublic boolean containsKey(int key)
key
- an int
value
boolean
valuepublic boolean forEachKey(TIntProcedure procedure)
procedure
- a TIntProcedure
value
public boolean forEachValue(TFloatProcedure procedure)
procedure
- a TFloatProcedure
value
public boolean forEachEntry(TIntFloatProcedure procedure)
procedure
- a TOIntFloatProcedure
value
public boolean retainEntries(TIntFloatProcedure procedure)
procedure
- determines which entries to keep
public void transformValues(TFloatFunction function)
function
- a TFloatFunction
valuepublic boolean increment(int key)
key
- the key of the value to increment
public boolean adjustValue(int key, float amount)
key
- the key of the value to incrementamount
- the amount to adjust the value by.
|
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