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java.lang.Objectgnu.trove.THash
gnu.trove.TPrimitiveHash
gnu.trove.TByteHash
gnu.trove.TByteDoubleHashMap
public class TByteDoubleHashMap
An open addressed Map implementation for byte 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.TByteHash |
|---|
_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 | |
|---|---|
TByteDoubleHashMap()
Creates a new TByteDoubleHashMap instance with the default
capacity and load factor. |
|
TByteDoubleHashMap(int initialCapacity)
Creates a new TByteDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor. |
|
TByteDoubleHashMap(int initialCapacity,
float loadFactor)
Creates a new TByteDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor. |
|
TByteDoubleHashMap(int initialCapacity,
float loadFactor,
TByteHashingStrategy strategy)
Creates a new TByteDoubleHashMap instance with a prime
value at or near the specified capacity and load factor. |
|
TByteDoubleHashMap(int initialCapacity,
TByteHashingStrategy strategy)
Creates a new TByteDoubleHashMap instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime. |
|
TByteDoubleHashMap(TByteHashingStrategy strategy)
Creates a new TByteDoubleHashMap instance with the default
capacity and load factor. |
|
| Method Summary | |
|---|---|
double |
adjustOrPutValue(byte key,
double adjust_amount,
double put_amount)
Adjusts the primitive value mapped to the key if the key is present in the map. |
boolean |
adjustValue(byte key,
double amount)
Adjusts the primitive value mapped to key. |
void |
clear()
Empties the map. |
java.lang.Object |
clone()
|
boolean |
containsKey(byte 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(TByteDoubleProcedure procedure)
Executes procedure for each key/value entry in the map. |
boolean |
forEachKey(TByteProcedure procedure)
Executes procedure for each key in the map. |
boolean |
forEachValue(TDoubleProcedure procedure)
Executes procedure for each value in the map. |
double |
get(byte key)
retrieves the value for key |
double[] |
getValues()
Returns the values of the map. |
int |
hashCode()
|
boolean |
increment(byte key)
Increments the primitive value mapped to key by 1 |
TByteDoubleIterator |
iterator()
|
byte[] |
keys()
returns the keys of the map. |
byte[] |
keys(byte[] a)
returns the keys of the map. |
double |
put(byte key,
double value)
Inserts a key/value pair into the map. |
void |
putAll(TByteDoubleHashMap map)
Put all the entries from the given map into this map. |
double |
putIfAbsent(byte key,
double 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. |
double |
remove(byte key)
Deletes a key/value pair from the map. |
protected void |
removeAt(int index)
removes the mapping at index from the map. |
boolean |
retainEntries(TByteDoubleProcedure 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(TDoubleFunction function)
Transform the values in this map using function. |
void |
writeExternal(java.io.ObjectOutput out)
|
| Methods inherited from class gnu.trove.TByteHash |
|---|
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 double[] _values
| Constructor Detail |
|---|
public TByteDoubleHashMap()
TByteDoubleHashMap instance with the default
capacity and load factor.
public TByteDoubleHashMap(int initialCapacity)
TByteDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the default load factor.
initialCapacity - an int value
public TByteDoubleHashMap(int initialCapacity,
float loadFactor)
TByteDoubleHashMap instance with a prime
capacity equal to or greater than initialCapacity and
with the specified load factor.
initialCapacity - an int valueloadFactor - a float valuepublic TByteDoubleHashMap(TByteHashingStrategy strategy)
TByteDoubleHashMap instance with the default
capacity and load factor.
strategy - used to compute hash codes and to compare keys.
public TByteDoubleHashMap(int initialCapacity,
TByteHashingStrategy strategy)
TByteDoubleHashMap 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 TByteDoubleHashMap(int initialCapacity,
float loadFactor,
TByteHashingStrategy strategy)
TByteDoubleHashMap 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 TByteHashpublic TByteDoubleIterator iterator()
protected int setUp(int initialCapacity)
setUp in class TByteHashinitialCapacity - an int value
public double put(byte key,
double value)
key - an byte valuevalue - an double value
public double putIfAbsent(byte key,
double value)
key - an byte valuevalue - an double value
public void putAll(TByteDoubleHashMap 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 double get(byte key)
key - an byte value
public void clear()
clear in class THashpublic double remove(byte key)
key - an byte value
double value, or (byte)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 TByteHashindex - an int valuepublic double[] getValues()
Collection valuepublic byte[] keys()
Set valuepublic byte[] keys(byte[] 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(double val)
val - an double value
boolean valuepublic boolean containsKey(byte key)
key - an byte value
boolean valuepublic boolean forEachKey(TByteProcedure procedure)
procedure - a TByteProcedure value
public boolean forEachValue(TDoubleProcedure procedure)
procedure - a TDoubleProcedure value
public boolean forEachEntry(TByteDoubleProcedure procedure)
procedure - a TOByteDoubleProcedure value
public boolean retainEntries(TByteDoubleProcedure procedure)
procedure - determines which entries to keep
public void transformValues(TDoubleFunction function)
function - a TDoubleFunction valuepublic boolean increment(byte key)
key - the key of the value to increment
public boolean adjustValue(byte key,
double amount)
key - the key of the value to incrementamount - the amount to adjust the value by.
public double adjustOrPutValue(byte key,
double adjust_amount,
double 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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