org.gcube.vremanagement.contextmanager

Class MultiKeysMap<K1,K2,V>

java.lang.Object

org.gcube.vremanagement.contextmanager.MultiKeysMap<K1,K2,V>

All Implemented Interfaces:

Iterable<V>

public class MultiKeysMap<K1,K2,V>
extends Object
implements Iterable<V>

A thread-safe Map with multiple keys allowing multiple values per key

Author:

Manuele Simi (ISTI-CNR)

Constructor Summary

Constructors

Constructor and Description
MultiKeysMap()

Method Summary

Modifier and Type	Method and Description
void	clean() Removes all mapping from this maps
Set<V>	getValuesByPrimaryKey(K1 key) Returns the values to which this map maps the specified primary key
Set<V>	getValuesBySecondaryKey(K2 key) Returns the values to which this map maps the specified primary key
Iterator<V>	iterator()
Set<K1>	primaryKeySet() Returns a set view of the primary keys contained in this map
void	put(K1 key1, K2 key2, V value) Associates the specified value with the two keys
void	removeValue(V value) removes the given values and its keys from the map
void	removeValuesByPrimaryKey(K1 key) Removes all the values associated to the primary key
void	removeValuesBySecondaryKey(K2 key) Removes all the values associated to the secondary key
Set<K2>	secondaryKeySet() Returns a set view of the secondary keys contained in this map
Collection<V>	values() Returns a collection view of the values contained in this map

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

MultiKeysMap

public MultiKeysMap()

Method Detail

iterator

public Iterator<V> iterator()

Specified by:

iterator in interface Iterable<V>

put

public void put(K1 key1,
                K2 key2,
                V value)

Associates the specified value with the two keys

Parameters:

key1 - the value's primary key

key2 - the value's secondary key

value - the value

removeValue

public void removeValue(V value)

removes the given values and its keys from the map

Parameters:

value -

removeValuesByPrimaryKey

public void removeValuesByPrimaryKey(K1 key)

Removes all the values associated to the primary key

Parameters:

key - the key of type K1

removeValuesBySecondaryKey

public void removeValuesBySecondaryKey(K2 key)

Removes all the values associated to the secondary key

Parameters:

key - the key of type K2

getValuesByPrimaryKey

public Set<V> getValuesByPrimaryKey(K1 key)

Returns the values to which this map maps the specified primary key

Parameters:

key - key whose associated values are to be returned

Returns:

the values to which this map maps the specified primary key

getValuesBySecondaryKey

public Set<V> getValuesBySecondaryKey(K2 key)

Returns the values to which this map maps the specified primary key

Parameters:

key - key whose associated values are to be returned

Returns:

@return the values to which this map maps the specified secondary key

primaryKeySet

public Set<K1> primaryKeySet()

Returns a set view of the primary keys contained in this map

Returns:

a set view of the primary keys contained in this map

secondaryKeySet

public Set<K2> secondaryKeySet()

Returns a set view of the secondary keys contained in this map

Returns:

a set view of the secondary keys contained in this map

values

public Collection<V> values()

Returns a collection view of the values contained in this map

Returns:

a collection view of the values contained in this map

clean

public void clean()

Removes all mapping from this maps