Package com.aquima.interactions.foundation.collections

Class MultiHashMap<K,V>

java.lang.Object

com.aquima.interactions.foundation.collections.MultiHashMap<K,V>

All Implemented Interfaces:

IMultiMap<K,V>

public class MultiHashMap<K,V>
extends Object
implements IMultiMap<K,V>

A multi-map backed by a HashMap. This implementation has the following characteristics:

• does not allow null keys
• does not allow null values
• is not thread safe

Since:

9.9

Author:

Petru Galanton

Constructor Summary

Constructors

Constructor	Description
MultiHashMap()	Creates a new instance.
MultiHashMap(IMultiMap<K,V> other)	Creates a copy of the specified multi-map.
MultiHashMap(Map<K,Collection<V>> map)	Creates a new instance backed by the specified map.

Method Summary

Modifier and Type	Method	Description
void	add(K key, V value)
void	addAll(K key, Collection<V> values)
void	clear()
boolean	containsKey(K key)
Set<Map.Entry<K,Collection<V>>>	entrySet()
Collection<V>	get(K key)
Set<K>	keySet()
Collection<V>	remove(K key)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Details

MultiHashMap

public MultiHashMap()

Creates a new instance.

MultiHashMap

public MultiHashMap(Map<K,Collection<V>> map)

Creates a new instance backed by the specified map.

Parameters:

map - the map backing this multi-map

MultiHashMap

public MultiHashMap(IMultiMap<K,V> other)

Creates a copy of the specified multi-map.

Parameters:

other - the multi-map that should be copied.

Method Details

add

public void add(K key,
 V value)

Specified by:

add in interface IMultiMap<K,V>

addAll

public void addAll(K key,
 Collection<V> values)

Specified by:

addAll in interface IMultiMap<K,V>

remove

public Collection<V> remove(K key)

Specified by:

remove in interface IMultiMap<K,V>

get

public Collection<V> get(K key)

Specified by:

get in interface IMultiMap<K,V>

containsKey

public boolean containsKey(K key)

Specified by:

containsKey in interface IMultiMap<K,V>

size

public int size()

Specified by:

size in interface IMultiMap<K,V>

clear

public void clear()

Specified by:

clear in interface IMultiMap<K,V>

entrySet

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

Specified by:

entrySet in interface IMultiMap<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface IMultiMap<K,V>