Package ch.tocco.nice2.persist.entity.spi.template

Class Multimap<K,V>

java.lang.Object

ch.tocco.nice2.persist.entity.spi.template.Multimap<K,V>

All Implemented Interfaces:

Serializable

public class Multimap<K,V>
extends Object
implements Serializable

A simple multimap implemenation that is serializable, i.e. with xstream.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Multimap()

Method Summary

Modifier and Type	Method	Description
static <K, V> Multimap<K,V>	create()
Set<V>	get(K key)
Map<K,LinkedHashSet<V>>	getMap()
Set<K>	keySet()
<K2> Multimap<K2,V>	mapKeys(Function<K,K2> fun)	Transforms this map into a new one applying each key of this to the given function.
<X> Multimap<K,X>	mapValues(Function<V,X> fun)
void	put(K key, V value)
void	putAll(Multimap<K,V> other)
void	putAll(K key, Iterable<V> values)
void	remove(K key, V value)
void	removeAll(K key)
void	setMap(Map<K,LinkedHashSet<V>> map)
<K2, V2> Multimap<K2,V2>	transform(Function<Tuple2<K,Collection<V>>,Tuple2<K2,Iterable<V2>>> fun)	Transforms this map to a new map using the given function.

Methods inherited from class java.lang.Object

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

Constructor Details

Multimap

public Multimap()

Method Details

create

public static <K,
V> Multimap<K,V> create()

getMap

public Map<K,LinkedHashSet<V>> getMap()

setMap

public void setMap(Map<K,LinkedHashSet<V>> map)

put

public void put(K key,
 V value)

putAll

public void putAll(K key,
 Iterable<V> values)

putAll

public void putAll(Multimap<K,V> other)

remove

public void remove(K key,
 V value)

removeAll

public void removeAll(K key)

get

public Set<V> get(K key)

keySet

public Set<K> keySet()

mapValues

public <X> Multimap<K,X> mapValues(Function<V,X> fun)

mapKeys

public <K2> Multimap<K2,V> mapKeys(Function<K,K2> fun)

Transforms this map into a new one applying each key of this to the given function.

transform

public <K2,
V2> Multimap<K2,V2> transform(Function<Tuple2<K,Collection<V>>,Tuple2<K2,Iterable<V2>>> fun)

Transforms this map to a new map using the given function. The function receives each key → collection pair. Please note, although the collection handed into the function is not mutable.