Package uk.gov.gchq.gaffer.mapstore.multimap

Class MapOfSets<K,V>

java.lang.Object

uk.gov.gchq.gaffer.mapstore.multimap.MapOfSets<K,V>

All Implemented Interfaces:

MultiMap<K,V>

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

Constructor Summary

Constructors

Constructor	Description
MapOfSets(Map<K,Set<V>> multiMap)
MapOfSets(Map<K,Set<V>> multiMap, Class<? extends Set> setClass)

Method Summary

Modifier and Type	Method	Description
void	clear()	Clear the map of all entries.
Collection<Map.Entry<K,Set<V>>>	entrySet()
Collection<V>	get(K key)	Get all of the values associated with the specified key.
Map<K,Set<V>>	getWrappedMap()
Set<K>	keySet()	Get the Set containing all keys in the map.
void	put(K key, Collection<V> value)	Add a collection of values to the specified key.
boolean	put(K key, V value)	Add a value to the specified key.

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.gov.gchq.gaffer.mapstore.multimap.MultiMap

putAll

Constructor Detail

MapOfSets

public MapOfSets(Map<K,Set<V>> multiMap)

MapOfSets

public MapOfSets(Map<K,Set<V>> multiMap,
                 Class<? extends Set> setClass)

Method Detail

put

public boolean put(K key,
                   V value)

Description copied from interface: MultiMap

Add a value to the specified key.

Specified by:

put in interface MultiMap<K,V>

Parameters:

key - the key to add a value to

value - the value to add

Returns:

true if the operation was successful, otherwise false

put

public void put(K key,
                Collection<V> value)

Description copied from interface: MultiMap

Add a collection of values to the specified key.

Specified by:

put in interface MultiMap<K,V>

Parameters:

key - the key to add the values to

value - the values to add

get

public Collection<V> get(K key)

Description copied from interface: MultiMap

Get all of the values associated with the specified key.

Specified by:

get in interface MultiMap<K,V>

Parameters:

key - the key to lookup

Returns:

a collection containing all of the values

keySet

public Set<K> keySet()

Description copied from interface: MultiMap

Get the Set containing all keys in the map.

Specified by:

keySet in interface MultiMap<K,V>

Returns:

the set of keys

entrySet

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

clear

public void clear()

Description copied from interface: MultiMap

Clear the map of all entries.

Specified by:

clear in interface MultiMap<K,V>

getWrappedMap

public Map<K,Set<V>> getWrappedMap()