Package com.landawn.abacus.util

Class ArrayHashMap<K,V>

java.lang.Object

com.landawn.abacus.util.ArrayHashMap<K,V>

Type Parameters:

K - the key type

V - the value type

All Implemented Interfaces:

Map<K,V>

Direct Known Subclasses:

LinkedArrayHashMap

public sealed class ArrayHashMap<K,V>
extends Object
implements Map<K,V>
permits LinkedArrayHashMap<K,V>

It's designed to supported primitive/object array key. The elements in the array must not be modified after the array is put into the map as key.

Since:

0.8

Author:

Haiyang Li

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
ArrayHashMap()
ArrayHashMap(int initialCapacity)
ArrayHashMap(Class<? extends Map> mapType)
ArrayHashMap(Map<? extends K,? extends V> m)

Method Summary

Modifier and Type	Method	Description
void	clear()	Clear.
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object obj)
V	get(Object key)
int	hashCode()
boolean	isEmpty()	Checks if is empty.
Set<K>	keySet()
V	put(K key, V value)
final void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)
int	size()
String	toString()
Collection<V>	values()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

ArrayHashMap

public ArrayHashMap()

ArrayHashMap

public ArrayHashMap(int initialCapacity)

Parameters:

initialCapacity -

ArrayHashMap

public ArrayHashMap(Class<? extends Map> mapType)

Parameters:

mapType -

ArrayHashMap

public ArrayHashMap(Map<? extends K,? extends V> m)

Parameters:

m -

Method Details

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Parameters:

key -

Returns:

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

Parameters:

key -

value -

Returns:

putAll

public final void putAll(Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

Parameters:

m -

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

Parameters:

key -

Returns:

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Parameters:

key -

Returns:

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

Parameters:

value -

Returns:

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

Returns:

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

Returns:

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Returns:

size

public int size()

Specified by:

size in interface Map<K,V>

Returns:

isEmpty

public boolean isEmpty()

Checks if is empty.

Specified by:

isEmpty in interface Map<K,V>

Returns:

true, if is empty

clear

public void clear()

Clear.

Specified by:

clear in interface Map<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class Object

Returns:

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class Object

Parameters:

obj -

Returns:

toString

public String toString()

Overrides:

toString in class Object

Returns: