Package org.drasyl.util

Class HashSetMultimap<K,V>

java.lang.Object

org.drasyl.util.HashSetMultimap<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

Multimap<K,V>, SetMultimap<K,V>

public class HashSetMultimap<K,V>
extends Object
implements SetMultimap<K,V>

Hash table based implementation of the SetMultimap interface.

This data structure is not thread-safe!

Constructor Summary

Constructors

Constructor	Description
HashSetMultimap()
HashSetMultimap(int initialMapCapacity, int initialSetCapacity)

Method Summary

Modifier and Type	Method	Description
Set<V>	get(Object key)	Returns the values that are associated to the specified key.
Set<K>	keySet()	Returns a Set with all the keys contained in this map.
boolean	put(K key, V value)	Associates the specified value with the specified key in this map.
boolean	remove(K key, V value)	Removes the specified value from the specified key.

Methods inherited from class java.lang.Object

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

Constructor Detail

HashSetMultimap

public HashSetMultimap(int initialMapCapacity,
                       int initialSetCapacity)

HashSetMultimap

public HashSetMultimap()

Method Detail

put

public boolean put(K key,
                   V value)

Description copied from interface: Multimap

Associates the specified value with the specified key in this map.

Specified by:

put in interface Multimap<K,V>

Parameters:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

Returns:

true if the specified value could be associated with the specified key

remove

public boolean remove(K key,
                      V value)

Description copied from interface: Multimap

Removes the specified value from the specified key. If no value left, the associated key will be removed from the map.

Specified by:

remove in interface Multimap<K,V>

Parameters:

key - key with which the specified value is associated

value - value expected to be associated with the specified key

Returns:

true if the specified value could be removed from the specified key

get

public Set<V> get(Object key)

Description copied from interface: Multimap

Returns the values that are associated to the specified key. Returns a empty Collection if currently no values are assosicated to the key.

Specified by:

get in interface Multimap<K,V>

Specified by:

get in interface SetMultimap<K,V>

Parameters:

key - the key whose associated values should be returned

Returns:

the values that are associated to the specified key. Returns a empty Collection if currently no values are assosicated to the key.

keySet

public Set<K> keySet()

Description copied from interface: Multimap

Returns a Set with all the keys contained in this map.

Specified by:

keySet in interface Multimap<K,V>

Returns:

Set with all the keys contained in this map