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java.lang.Object | +--gnu.trove.THash | +--gnu.trove.TObjectHash | +--gnu.trove.TObjectDoubleHashMap
An open addressed Map implementation for Object keys and double values. Created: Sun Nov 4 08:52:45 2001
Field Summary | |
protected double[] |
_values
the values of the map |
Fields inherited from class gnu.trove.TObjectHash |
_hashingStrategy, _set, REMOVED |
Fields inherited from class gnu.trove.THash |
_free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR |
Constructor Summary | |
TObjectDoubleHashMap()
Creates a new TObjectDoubleHashMap instance with the default
capacity and load factor. |
|
TObjectDoubleHashMap(int initialCapacity)
Creates a new TObjectDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
|
TObjectDoubleHashMap(int initialCapacity,
float loadFactor)
Creates a new TObjectDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TObjectDoubleHashMap(int initialCapacity,
float loadFactor,
TObjectHashingStrategy strategy)
Creates a new TObjectDoubleHashMap instance with a prime
value at or near the specified capacity and load factor. |
|
TObjectDoubleHashMap(int initialCapacity,
TObjectHashingStrategy strategy)
Creates a new TObjectDoubleHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TObjectDoubleHashMap(TObjectHashingStrategy strategy)
Creates a new TObjectDoubleHashMap instance with the default
capacity and load factor. |
Method Summary | |
boolean |
adjustValue(java.lang.Object key,
double amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
boolean |
containsKey(java.lang.Object key)
checks for the present of key in the keys of the map. |
boolean |
containsValue(double 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(TObjectDoubleProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TObjectProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TDoubleProcedure procedure)
Executes procedure for each value in the map. |
double |
get(java.lang.Object key)
retrieves the value for key |
double[] |
getValues()
Returns the values of the map. |
boolean |
increment(java.lang.Object key)
Increments the primitive value mapped to key by 1 |
TObjectDoubleIterator |
iterator()
|
java.lang.Object[] |
keys()
returns the keys of the map. |
double |
put(java.lang.Object key,
double value)
Inserts a key/value pair into the map. |
protected void |
rehash(int newCapacity)
rehashes the map to the new capacity. |
double |
remove(java.lang.Object key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TObjectDoubleProcedure 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(TDoubleFunction function)
Transform the values in this map using function. |
Methods inherited from class gnu.trove.TObjectHash |
capacity, clone, computeHashCode, contains, equals, forEach, index, insertionIndex, throwObjectContractViolation |
Methods inherited from class gnu.trove.THash |
compact, ensureCapacity, isEmpty, postInsertHook, size, trimToSize |
Methods inherited from class java.lang.Object |
finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected transient double[] _values
Constructor Detail |
public TObjectDoubleHashMap()
TObjectDoubleHashMap
instance with the default
capacity and load factor.
public TObjectDoubleHashMap(int initialCapacity)
TObjectDoubleHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity
- an int
valuepublic TObjectDoubleHashMap(int initialCapacity, float loadFactor)
TObjectDoubleHashMap
instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity
- an int
valueloadFactor
- a float
valuepublic TObjectDoubleHashMap(TObjectHashingStrategy strategy)
TObjectDoubleHashMap
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.public TObjectDoubleHashMap(int initialCapacity, TObjectHashingStrategy strategy)
TObjectDoubleHashMap
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 TObjectDoubleHashMap(int initialCapacity, float loadFactor, TObjectHashingStrategy strategy)
TObjectDoubleHashMap
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 TObjectDoubleIterator iterator()
protected int setUp(int initialCapacity)
setUp
in class TObjectHash
initialCapacity
- an int
value
public double put(java.lang.Object key, double value)
key
- an Object
valuevalue
- an double
value
protected void rehash(int newCapacity)
rehash
in class THash
newCapacity
- an int
valuepublic double get(java.lang.Object key)
key
- an Object
value
public void clear()
clear
in class THash
public double remove(java.lang.Object key)
key
- an Object
value
double
valuepublic boolean equals(java.lang.Object other)
equals
in class java.lang.Object
other
- an Object
value
boolean
valueprotected void removeAt(int index)
removeAt
in class TObjectHash
index
- an int
valuepublic double[] getValues()
Collection
valuepublic java.lang.Object[] keys()
Set
valuepublic boolean containsValue(double val)
val
- an double
value
boolean
valuepublic boolean containsKey(java.lang.Object key)
key
- an Object
value
boolean
valuepublic boolean forEachKey(TObjectProcedure procedure)
procedure
- a TObjectProcedure
value
public boolean forEachValue(TDoubleProcedure procedure)
procedure
- a TDoubleProcedure
value
public boolean forEachEntry(TObjectDoubleProcedure procedure)
procedure
- a TOObjectDoubleProcedure
value
public boolean retainEntries(TObjectDoubleProcedure procedure)
procedure
- determines which entries to keep
public void transformValues(TDoubleFunction function)
function
- a TDoubleFunction
valuepublic boolean increment(java.lang.Object key)
key
- the key of the value to increment
public boolean adjustValue(java.lang.Object key, double amount)
key
- the key of the value to incrementamount
- the amount to adjust the value by.
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