io.joynr.util

Class MultiMap<K,V>

java.lang.Object

io.joynr.util.MultiMap<K,V>

All Implemented Interfaces:

Serializable

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

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultiMap()

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(K key)
Set<V>	get(K key)
Set<V>	getAndRemoveAll(K key)
boolean	isEmpty()
Set<K>	keySet()
void	put(K key, V value) Stores a key-value pair.
boolean	remove(K key, V value) Removes key-value pair if it exists.
void	removeAll(K key) Removes all values associated with key.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiMap

public MultiMap()

Method Detail

containsKey

public boolean containsKey(K key)

Parameters:

key - key

Returns:

true if at least one key-value pair exists for key

isEmpty

public boolean isEmpty()

Returns:

true if empty

get

public Set<V> get(K key)

Parameters:

key - key

Returns:

a set view of the values associated with key

put

public void put(K key,
                V value)

Stores a key-value pair.

Parameters:

key - key

value - value

getAndRemoveAll

public Set<V> getAndRemoveAll(K key)

Parameters:

key - key

Returns:

a set view of the values associated with key then remove it from the container storage

remove

public boolean remove(K key,
                      V value)

Removes key-value pair if it exists.

Parameters:

key - key

value - value

Returns:

true if pair was removed, false otherwise

removeAll

public void removeAll(K key)

Removes all values associated with key.

Parameters:

key - key

keySet

public Set<K> keySet()

Returns:

a set view of the keys contained in this multimap

size

public int size()

Returns:

number of key-value pairs in this multimap