gnu.trove.map
Interface TIntDoubleMap

All Known Implementing Classes:

TIntDoubleHashMap

public interface TIntDoubleMap

Interface for a primitive map of int keys and double values.

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 map.
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	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	getNoEntryKey() Returns the value that will be returned from get(int) or put(int, double) if no entry exists for a given key.
double	getNoEntryValue() Returns the value that will be returned from get(int) or put(int, double) if no entry exists for a given key.
boolean	increment(int key) Increments the primitive value mapped to key by 1
boolean	isEmpty() Returns true if this map contains no key-value mappings.
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.
double	remove(int key) Deletes a key/value pair from the map.
boolean	retainEntries(TIntDoubleProcedure procedure) Retains only those entries in the map for which the procedure returns a true value.
int	size() Returns an int value that is the number of elements in the map.
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.

Method Detail

getNoEntryKey

int getNoEntryKey()

Returns the value that will be returned from get(int) or put(int, double) if no entry exists for a given key. The default value is generally zero, but can be changed during construction of the collection.

Returns:

the value that represents a null key in this collection.

getNoEntryValue

double getNoEntryValue()

Returns the value that will be returned from get(int) or put(int, double) if no entry exists for a given key. The default value is generally zero, but can be changed during construction of the collection.

Returns:

the value that represents a null value in this collection.

put

double put(int key,
           double value)

Inserts a key/value pair into the map.

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 getNoEntryValue()).

putIfAbsent

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.

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 getNoEntryValue()).

putAll

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.

Parameters:

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

putAll

void putAll(TIntDoubleMap map)

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

Parameters:

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

get

double get(int key)

Retrieves the value for key

Parameters:

key - an int value

Returns:

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

clear

void clear()

Empties the map.

isEmpty

boolean isEmpty()

Returns true if this map contains no key-value mappings.

Returns:

true if this map contains no key-value mappings

remove

double remove(int key)

Deletes a key/value pair from the map.

Parameters:

key - an int value

Returns:

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

size

int size()

Returns an int value that is the number of elements in the map.

Returns:

an int value that is the number of elements in the map.

keySet

TIntSet keySet()

Returns the keys of the map as a TIntSet

Returns:

the keys of the map as a TIntSet

keys

int[] keys()

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

Returns:

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

keys

int[] keys(int[] array)

Returns the keys of the map.

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

TDoubleCollection valueCollection()

Returns the values of the map as a TDoubleCollection

Returns:

the values of the map as a TDoubleCollection

values

double[] values()

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

Returns:

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

values

double[] values(double[] array)

Returns the values of the map using an existing array.

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

boolean containsValue(double val)

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

Parameters:

val - an double value

Returns:

a boolean value

containsKey

boolean containsKey(int key)

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

Parameters:

key - an int value

Returns:

a boolean value

iterator

TIntDoubleIterator iterator()

Returns:

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

forEachKey

boolean forEachKey(TIntProcedure procedure)

Executes procedure for each key in the map.

Parameters:

procedure - a TIntProcedure value

Returns:

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

forEachValue

boolean forEachValue(TDoubleProcedure procedure)

Executes procedure for each value in the map.

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

boolean forEachEntry(TIntDoubleProcedure procedure)

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

Parameters:

procedure - a TOIntDoubleProcedure value

Returns:

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

transformValues

void transformValues(TDoubleFunction function)

Transform the values in this map using function.

Parameters:

function - a TDoubleFunction value

retainEntries

boolean retainEntries(TIntDoubleProcedure procedure)

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

Parameters:

procedure - determines which entries to keep

Returns:

true if the map was modified.

increment

boolean increment(int key)

Increments the primitive value mapped to key by 1

Parameters:

key - the key of the value to increment

Returns:

true if a mapping was found and modified.

adjustValue

boolean adjustValue(int key,
                    double amount)

Adjusts the primitive value mapped to key.

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

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.

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