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.
boolean	remove(K key, V valueToDelete)	Remove value for 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

remove

public boolean remove(K key,
                      V valueToDelete)

Description copied from interface: MultiMap

Remove value for the specified key.

Specified by:

remove in interface MultiMap<K,V>

Parameters:

key - the key for the value to be removed

valueToDelete - the value to be removed

Returns:

true if the operation was successful, otherwise false

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()