gnu.trove.map.hash

Class TIntFloatHashMap

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TIntFloatHash

gnu.trove.map.hash.TIntFloatHashMap

All Implemented Interfaces:

TIntFloatMap, java.io.Externalizable, java.io.Serializable

public class TIntFloatHashMap
extends TIntFloatHash
implements TIntFloatMap, java.io.Externalizable

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

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	TIntFloatHashMap.TKeyView a view onto the keys of the map.
protected class	TIntFloatHashMap.TValueView a view onto the values of the map.

Field Summary

Fields

Modifier and Type	Field and Description
protected float[]	_values the values of the map

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

_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

Constructors

Constructor and Description
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[] keys, float[] values) Creates a new TIntFloatHashMap instance containing all of the entries in the map passed in.
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, int noEntryKey, float noEntryValue) Creates a new TIntFloatHashMap instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.
TIntFloatHashMap(TIntFloatMap map) Creates a new TIntFloatHashMap instance containing all of the entries in the map passed in.

Method Summary

Modifier and Type	Method and Description
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 collection.
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)
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.
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.
TIntFloatIterator	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
float	put(int key, float value) Inserts a key/value pair into the map.
void	putAll(java.util.Map<? extends java.lang.Integer,? extends java.lang.Float> map) Put all the entries from the given Map into this map.
void	putAll(TIntFloatMap 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 set.
float	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(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.
TFloatCollection	valueCollection() Returns the values of the map as a TFloatCollection
float[]	values() Returns the values of the map as an array of #e# values.
float[]	values(float[] 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.TIntFloatHash

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, fastCeil, getAutoCompactionFactor, postInsertHook, reenableAutoCompaction, saturatedCast, 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.TIntFloatMap

getNoEntryKey, getNoEntryValue, size

Field Detail

_values

protected transient float[] _values

the values of the map

Constructor Detail

TIntFloatHashMap

public TIntFloatHashMap()

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

TIntFloatHashMap

public TIntFloatHashMap(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TIntFloatHashMap

public 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.

Parameters:

initialCapacity - an int value

loadFactor - a float value

TIntFloatHashMap

public TIntFloatHashMap(int initialCapacity,
                        float loadFactor,
                        int noEntryKey,
                        float noEntryValue)

Creates a new TIntFloatHashMap 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 float value that represents null for the Value set.

TIntFloatHashMap

public TIntFloatHashMap(int[] keys,
                        float[] values)

Creates a new TIntFloatHashMap 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 float array containing the values.

TIntFloatHashMap

public TIntFloatHashMap(TIntFloatMap map)

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

Parameters:

map - a TIntFloatMap 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 TIntFloatHash

Parameters:

initialCapacity - an int value

Returns:

the actual capacity chosen

rehash

protected void rehash(int newCapacity)

Rehashes the set.

Specified by:

rehash in class THash

Parameters:

newCapacity - an int value

put

public float put(int key,
                 float value)

Inserts a key/value pair into the map.

Specified by:

put in interface TIntFloatMap

Returns:

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

putIfAbsent

public 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.

Specified by:

putIfAbsent in interface TIntFloatMap

Returns:

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

putAll

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

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

Specified by:

putAll in interface TIntFloatMap

Parameters:

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

putAll

public void putAll(TIntFloatMap map)

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

Specified by:

putAll in interface TIntFloatMap

Parameters:

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

get

public float get(int key)

Retrieves the value for key.

Specified by:

get in interface TIntFloatMap

Returns:

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

clear

public void clear()

Empties the collection.

Specified by:

clear in interface TIntFloatMap

Overrides:

clear in class THash

isEmpty

public boolean isEmpty()

Tells whether this set is currently holding any elements.

Specified by:

isEmpty in interface TIntFloatMap

Overrides:

isEmpty in class THash

Returns:

a boolean value

remove

public float remove(int key)

Deletes a key/value pair from the map.

Specified by:

remove in interface TIntFloatMap

Parameters:

key - an int value

Returns:

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

removeAt

protected void removeAt(int index)

Releases the element currently stored at index.

Overrides:

removeAt in class TIntFloatHash

Parameters:

index - an int value

keySet

public TIntSet keySet()

Returns the keys of the map as a TIntSet

Specified by:

keySet in interface TIntFloatMap

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 TIntFloatMap

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 TIntFloatMap

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 TFloatCollection valueCollection()

Returns the values of the map as a TFloatCollection

Specified by:

valueCollection in interface TIntFloatMap

Returns:

the values of the map as a TFloatCollection

values

public float[] values()

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

Specified by:

values in interface TIntFloatMap

Returns:

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

values

public float[] values(float[] array)

Returns the values of the map using an existing array.

Specified by:

values in interface TIntFloatMap

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(float val)

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

Specified by:

containsValue in interface TIntFloatMap

containsKey

public boolean containsKey(int key)

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

Specified by:

containsKey in interface TIntFloatMap

iterator

public TIntFloatIterator iterator()

Specified by:

iterator in interface TIntFloatMap

Returns:

a TIntFloatIterator 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 TIntFloatMap

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(TFloatProcedure procedure)

Executes procedure for each value in the map.

Specified by:

forEachValue in interface TIntFloatMap

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(TIntFloatProcedure procedure)

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

Specified by:

forEachEntry in interface TIntFloatMap

Parameters:

procedure - a TOIntFloatProcedure value

Returns:

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

transformValues

public void transformValues(TFloatFunction function)

Transform the values in this map using function.

Specified by:

transformValues in interface TIntFloatMap

Parameters:

function - a TFloatFunction value

retainEntries

public boolean retainEntries(TIntFloatProcedure procedure)

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

Specified by:

retainEntries in interface TIntFloatMap

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 TIntFloatMap

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

public boolean adjustValue(int key,
                           float amount)

Adjusts the primitive value mapped to key.

Specified by:

adjustValue in interface TIntFloatMap

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 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. Otherwise, the put_amount is put in the map.

Specified by:

adjustOrPutValue in interface TIntFloatMap

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 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 TIntFloatHash

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 TIntFloatHash

Throws:

java.io.IOException

java.lang.ClassNotFoundException