gnu.trove.map.hash
Class TIntDoubleHashMap

java.lang.Object
  gnu.trove.impl.hash.THash
      gnu.trove.impl.hash.TPrimitiveHash
          gnu.trove.impl.hash.TIntDoubleHash
              gnu.trove.map.hash.TIntDoubleHashMap

All Implemented Interfaces:

TIntDoubleMap, java.io.Externalizable, java.io.Serializable

public class TIntDoubleHashMap
extends gnu.trove.impl.hash.TIntDoubleHash
implements TIntDoubleMap, java.io.Externalizable

An open addressed Map implementation for int keys and double values.

See Also:

Serialized Form

Nested Class Summary

protected class	TIntDoubleHashMap.TKeyView a view onto the keys of the map.
protected class	TIntDoubleHashMap.TValueView a view onto the values of the map.

Field Summary

protected double[]

_values the values of the map

Fields inherited from class gnu.trove.impl.hash.TIntDoubleHash

_set, consumeFreeSlot, no_entry_key, no_entry_value

Fields inherited from class gnu.trove.impl.hash.TPrimitiveHash

_states, FREE, FULL, REMOVED

Fields inherited from class gnu.trove.impl.hash.THash

_autoCompactionFactor, _autoCompactRemovesRemaining, _autoCompactTemporaryDisable, _free, _loadFactor, _maxSize, _size, DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

TIntDoubleHashMap()
Creates a new TIntDoubleHashMap instance with the default capacity and load factor.

TIntDoubleHashMap(int initialCapacity)
Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

TIntDoubleHashMap(int[] keys, double[] values)
Creates a new TIntDoubleHashMap instance containing all of the entries in the map passed in.

TIntDoubleHashMap(int initialCapacity, float loadFactor)
Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

TIntDoubleHashMap(int initialCapacity, float loadFactor, int noEntryKey, double noEntryValue)
Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

TIntDoubleHashMap(TIntDoubleMap map)
Creates a new TIntDoubleHashMap instance containing all of the entries in the map passed in.

Method Summary

double	adjustOrPutValue(int 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(int key, double amount) Adjusts the primitive value mapped to key.
void	clear() Empties the collection.
boolean	containsKey(int 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)
boolean	forEachEntry(TIntDoubleProcedure 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(TDoubleProcedure procedure) Executes procedure for each value in the map.
double	get(int key) Retrieves the value for key
int	hashCode()
boolean	increment(int key) Increments the primitive value mapped to key by 1
boolean	isEmpty() Tells whether this set is currently holding any elements.
TIntDoubleIterator	iterator()
int[]	keys() Returns the keys of the map as an array of int values.
int[]	keys(int[] array) Returns the keys of the map.
TIntSet	keySet() Returns the keys of the map as a TIntSet
double	put(int key, double value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Integer,? extends java.lang.Double> map) Put all the entries from the given Map into this map.
void	putAll(TIntDoubleMap map) Put all the entries from the given map into this map.
double	putIfAbsent(int 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 set.
double	remove(int key) Deletes a key/value pair from the map.
protected void	removeAt(int index) Releases the element currently stored at index.
boolean	retainEntries(TIntDoubleProcedure 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.
TDoubleCollection	valueCollection() Returns the values of the map as a TDoubleCollection
double[]	values() Returns the values of the map as an array of #e# values.
double[]	values(double[] array) Returns the values of the map using an existing array.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class gnu.trove.impl.hash.TIntDoubleHash

contains, forEach, getNoEntryKey, getNoEntryValue, index, insertKey, XinsertKey

Methods inherited from class gnu.trove.impl.hash.TPrimitiveHash

capacity

Methods inherited from class gnu.trove.impl.hash.THash

calculateGrownCapacity, compact, computeMaxSize, computeNextAutoCompactionAmount, ensureCapacity, getAutoCompactionFactor, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface gnu.trove.map.TIntDoubleMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient double[] _values

the values of the map

Constructor Detail

TIntDoubleHashMap

public TIntDoubleHashMap()

Creates a new TIntDoubleHashMap instance with the default capacity and load factor.

TIntDoubleHashMap

public TIntDoubleHashMap(int initialCapacity)

Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.

Parameters:

initialCapacity - an int value

TIntDoubleHashMap

public TIntDoubleHashMap(int initialCapacity,
                         float loadFactor)

Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

Parameters:

initialCapacity - an int value

loadFactor - a float value

TIntDoubleHashMap

public TIntDoubleHashMap(int initialCapacity,
                         float loadFactor,
                         int noEntryKey,
                         double noEntryValue)

Creates a new TIntDoubleHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.

Parameters:

initialCapacity - an int value

loadFactor - a float value

noEntryKey - a int value that represents null for the Key set.

noEntryValue - a double value that represents null for the Value set.

TIntDoubleHashMap

public TIntDoubleHashMap(int[] keys,
                         double[] values)

Creates a new TIntDoubleHashMap instance containing all of the entries in the map passed in.

Parameters:

keys - a int array containing the keys for the matching values.

values - a double array containing the values.

TIntDoubleHashMap

public TIntDoubleHashMap(TIntDoubleMap map)

Creates a new TIntDoubleHashMap instance containing all of the entries in the map passed in.

Parameters:

map - a TIntDoubleMap that will be duplicated.

Method Detail

setUp

protected int setUp(int initialCapacity)

initializes the hashtable to a prime capacity which is at least initialCapacity + 1.

Overrides:

setUp in class gnu.trove.impl.hash.TIntDoubleHash

Parameters:

initialCapacity - an int value

Returns:

the actual capacity chosen

rehash

protected void rehash(int newCapacity)

Rehashes the set.

Specified by:

rehash in class gnu.trove.impl.hash.THash

Parameters:

newCapacity - an int value

put

public double put(int key,
                  double value)

Inserts a key/value pair into the map.

Specified by:

put in interface TIntDoubleMap

Parameters:

key - an int value

value - an double value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TIntDoubleMap.getNoEntryValue()).

putIfAbsent

public double putIfAbsent(int key,
                          double value)

Inserts a key/value pair into the map if the specified key is not already associated with a value.

Specified by:

putIfAbsent in interface TIntDoubleMap

Parameters:

key - an int value

value - an double value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TIntDoubleMap.getNoEntryValue()).

putAll

public void putAll(java.util.Map<? extends java.lang.Integer,? extends java.lang.Double> map)

Put all the entries from the given Map into this map.

Specified by:

putAll in interface TIntDoubleMap

Parameters:

map - The Map from which entries will be obtained to put into this map.

putAll

public void putAll(TIntDoubleMap map)

Put all the entries from the given map into this map.

Specified by:

putAll in interface TIntDoubleMap

Parameters:

map - The map from which entries will be obtained to put into this map.

get

public double get(int key)

Retrieves the value for key

Specified by:

get in interface TIntDoubleMap

Parameters:

key - an int value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TIntDoubleMap.getNoEntryValue()).

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TIntDoubleMap

Overrides:

clear in class gnu.trove.impl.hash.THash

isEmpty

public boolean isEmpty()

Tells whether this set is currently holding any elements.

Specified by:

isEmpty in interface TIntDoubleMap

Overrides:

isEmpty in class gnu.trove.impl.hash.THash

Returns:

a boolean value

remove

public double remove(int key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TIntDoubleMap

Parameters:

key - an int value

Returns:

the previous value associated with key, or the "no entry" value if none was found (see TIntDoubleMap.getNoEntryValue()).

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

removeAt in class gnu.trove.impl.hash.TIntDoubleHash

Parameters:

index - an int value

keySet

public TIntSet keySet()

Returns the keys of the map as a TIntSet

Specified by:

keySet in interface TIntDoubleMap

Returns:

the keys of the map as a TIntSet

keys

public int[] keys()

Returns the keys of the map as an array of int values.

Specified by:

keys in interface TIntDoubleMap

Returns:

the keys of the map as an array of int values.

keys

public int[] keys(int[] array)

Returns the keys of the map.

Specified by:

keys in interface TIntDoubleMap

Parameters:

array - 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.

Returns:

the keys of the map as an array.

valueCollection

public TDoubleCollection valueCollection()

Returns the values of the map as a TDoubleCollection

Specified by:

valueCollection in interface TIntDoubleMap

Returns:

the values of the map as a TDoubleCollection

values

public double[] values()

Returns the values of the map as an array of #e# values.

Specified by:

values in interface TIntDoubleMap

Returns:

the values of the map as an array of #e# values.

values

public double[] values(double[] array)

Returns the values of the map using an existing array.

Specified by:

values in interface TIntDoubleMap

Parameters:

array - 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.

Returns:

the values of the map as an array of #e# values.

containsValue

public boolean containsValue(double val)

Checks for the presence of val in the values of the map.

Specified by:

containsValue in interface TIntDoubleMap

Parameters:

val - an double value

Returns:

a boolean value

containsKey

public boolean containsKey(int key)

Checks for the present of key in the keys of the map.

Specified by:

containsKey in interface TIntDoubleMap

Parameters:

key - an int value

Returns:

a boolean value

iterator

public TIntDoubleIterator iterator()

Specified by:

iterator in interface TIntDoubleMap

Returns:

a TIntDoubleIterator with access to this map's keys and values

forEachKey

public boolean forEachKey(TIntProcedure procedure)

Executes procedure for each key in the map.

Specified by:

forEachKey in interface TIntDoubleMap

Parameters:

procedure - a TIntProcedure value

Returns:

false if the loop over the keys terminated because the procedure returned false for some key.

forEachValue

public boolean forEachValue(TDoubleProcedure procedure)

Executes procedure for each value in the map.

Specified by:

forEachValue in interface TIntDoubleMap

Parameters:

procedure - a T#F#Procedure value

Returns:

false if the loop over the values terminated because the procedure returned false for some value.

forEachEntry

public boolean forEachEntry(TIntDoubleProcedure procedure)

Executes procedure for each key/value entry in the map.

Specified by:

forEachEntry in interface TIntDoubleMap

Parameters:

procedure - a TOIntDoubleProcedure value

Returns:

false if the loop over the entries terminated because the procedure returned false for some entry.

transformValues

public void transformValues(TDoubleFunction function)

Transform the values in this map using function.

Specified by:

transformValues in interface TIntDoubleMap

Parameters:

function - a TDoubleFunction value

retainEntries

public boolean retainEntries(TIntDoubleProcedure procedure)

Retains only those entries in the map for which the procedure returns a true value.

Specified by:

retainEntries in interface TIntDoubleMap

Parameters:

procedure - determines which entries to keep

Returns:

true if the map was modified.

increment

public boolean increment(int key)

Increments the primitive value mapped to key by 1

Specified by:

increment in interface TIntDoubleMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(int key,
                           double amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TIntDoubleMap

Parameters:

key - the key of the value to increment

amount - the amount to adjust the value by.

Returns:

true if a mapping was found and modified.

adjustOrPutValue

public double adjustOrPutValue(int key,
                               double adjust_amount,
                               double put_amount)

Adjusts the primitive value mapped to the key if the key is present in the map. Otherwise, the initial_value is put in the map.

Specified by:

adjustOrPutValue in interface TIntDoubleMap

Parameters:

key - the key of the value to increment

adjust_amount - the amount to adjust the value by

put_amount - the value put into the map if the key is not initial present

Returns:

the value present in the map after the adjustment or put operation

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class gnu.trove.impl.hash.TIntDoubleHash

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class gnu.trove.impl.hash.TIntDoubleHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException