com.jogamp.common.util
Class IntIntHashMap

java.lang.Object
  com.jogamp.common.util.IntIntHashMap

All Implemented Interfaces:

Cloneable, Iterable

public class IntIntHashMap
extends Object
implements Cloneable, Iterable

Fast HashMap for primitive data. Optimized for being GC friendly. Original code is based on the skorpios project released under new BSD license.

Author:

Michael Bien, Simon Goller, Sven Gothel

See Also:

IntObjectHashMap, IntLongHashMap, LongObjectHashMap, LongLongHashMap, LongIntHashMap

Nested Class Summary

static class

IntIntHashMap.Entry An entry mapping a key to a value.

Constructor Summary

IntIntHashMap()

IntIntHashMap(int initialCapacity)

IntIntHashMap(int initialCapacity, float loadFactor)

Method Summary

int	capacity() Returns the current capacity (buckets) in this map.
void	clear() Clears the entire map.
Object	clone() Disclaimer: If the value type doesn't implement clone(), only the reference is copied.
boolean	containsKey(int key)
boolean	containsValue(int value)
int	get(int key) Returns the value to which the specified key is mapped, or getKeyNotFoundValue() if this map contains no mapping for the key.
int	getKeyNotFoundValue() Returns the value which is returned if no value has been found for the specified key.
Iterator<IntIntHashMap.Entry>	iterator() Returns a new Iterator.
int	put(int key, int value) Maps the key to the specified value.
void	putAll(IntIntHashMap source) Copies all of the mappings from the specified map to this map.
int	remove(int key) Removes the key-value mapping from this map.
int	setKeyNotFoundValue(int newKeyNotFoundValue) Sets the new key not found value.
int	size() Returns the current number of key-value mappings in this map.
String	toString()

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IntIntHashMap

public IntIntHashMap()

IntIntHashMap

public IntIntHashMap(int initialCapacity)

IntIntHashMap

public IntIntHashMap(int initialCapacity,
                     float loadFactor)

Method Detail

clone

public Object clone()

Disclaimer: If the value type doesn't implement clone(), only the reference is copied. Note: Due to private fields we cannot implement a copy constructor, sorry.

Overrides:

clone in class Object

Parameters:

source - the primitive hash map to copy

containsValue

public boolean containsValue(int value)

containsKey

public boolean containsKey(int key)

get

public int get(int key)

Returns the value to which the specified key is mapped, or getKeyNotFoundValue() if this map contains no mapping for the key.

put

public int put(int key,
               int value)

Maps the key to the specified value. If a mapping to this key already exists, the previous value will be returned (otherwise getKeyNotFoundValue()).

putAll

public void putAll(IntIntHashMap source)

Copies all of the mappings from the specified map to this map.

remove

public int remove(int key)

Removes the key-value mapping from this map. Returns the previously mapped value or getKeyNotFoundValue() if no such mapping exists.

size

public int size()

Returns the current number of key-value mappings in this map.

capacity

public int capacity()

Returns the current capacity (buckets) in this map.

clear

public void clear()

Clears the entire map. The size is 0 after this operation.

iterator

public Iterator<IntIntHashMap.Entry> iterator()

Returns a new Iterator. Note: this Iterator does not yet support removal of elements.

Specified by:

iterator in interface Iterable

setKeyNotFoundValue

public int setKeyNotFoundValue(int newKeyNotFoundValue)

Sets the new key not found value. For primitive types (int, long) the default is -1, for Object types, the default is null.

Returns:

the previous key not found value

See Also:

get(int), put(int, int)

getKeyNotFoundValue

public int getKeyNotFoundValue()

Returns the value which is returned if no value has been found for the specified key.

See Also:

get(int), put(int, int)

toString

public String toString()

Overrides:

toString in class Object