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java.lang.Objectgnu.trove.THash
gnu.trove.TPrimitiveHash
gnu.trove.TIntHash
gnu.trove.TIntFloatHashMap
public class 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 |
|---|
_autoCompactionFactor, _autoCompactRemovesRemaining, _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 | |
|---|---|
float |
adjustOrPutValue(int key,
float adjust_amount,
float put_amount)
Adjusts the primitive value mapped to the key if the key is present in the map. |
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. |
int[] |
keys(int[] a)
returns the keys of the map. |
float |
put(int key,
float value)
Inserts a key/value pair into the map. |
void |
putAll(TIntFloatHashMap map)
Put all the entries from the given map into this map. |
float |
putIfAbsent(int key,
float value)
Inserts a key/value pair into the map if the specified key is not already associated with a value. |
void |
readExternal(java.io.ObjectInput in)
|
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. |
java.lang.String |
toString()
|
void |
transformValues(TFloatFunction function)
Transform the values in this map using function. |
void |
writeExternal(java.io.ObjectOutput out)
|
| 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 |
|---|
calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, notify, notifyAll, 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 value
public 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 TIntHashpublic TIntFloatIterator iterator()
protected int setUp(int initialCapacity)
setUp in class TIntHashinitialCapacity - an int value
public float put(int key,
float value)
key - an int valuevalue - an float value
public float putIfAbsent(int key,
float value)
key - an int valuevalue - an float value
public void putAll(TIntFloatHashMap map)
map - The map from which entries will be obtained to put into this map.protected void rehash(int newCapacity)
rehash in class THashnewCapacity - an int valuepublic float get(int key)
key - an int value
public void clear()
clear in class THashpublic float remove(int key)
key - an int value
float value, or (int)0 if no mapping for key existspublic boolean equals(java.lang.Object other)
equals in class java.lang.Objectother - an Object value
boolean valuepublic int hashCode()
hashCode in class java.lang.Objectprotected void removeAt(int index)
removeAt in class TIntHashindex - an int valuepublic float[] getValues()
Collection valuepublic int[] keys()
Set valuepublic int[] keys(int[] a)
a - the array into which the elements of the list are to
be stored, if it is big enough; otherwise, a new array of the
same type is allocated for this purpose.
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.
public float adjustOrPutValue(int key,
float adjust_amount,
float put_amount)
key - the key of the value to incrementadjust_amount - the amount to adjust the value byput_amount - the value put into the map if the key is not initial present
public void writeExternal(java.io.ObjectOutput out)
throws java.io.IOException
writeExternal in interface java.io.ExternalizablewriteExternal in class THashjava.io.IOException
public void readExternal(java.io.ObjectInput in)
throws java.io.IOException,
java.lang.ClassNotFoundException
readExternal in interface java.io.ExternalizablereadExternal in class THashjava.io.IOException
java.lang.ClassNotFoundExceptionpublic java.lang.String toString()
toString in class java.lang.Object
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