net.openhft.chronicle.engine.api.map

Interface MapView<K,MV,V>

All Superinterfaces:

Assetted<KeyValueStore<K,MV,V>>, ConcurrentMap<K,V>, java.util.function.Function<K,V>, KeyedVisitable<K,V>, Map<K,V>, Updatable<MapView<K,MV,V>>, View

All Known Implementing Classes:

RemoteMapView, VanillaMapView

public interface MapView<K,MV,V>
extends ConcurrentMap<K,V>, Assetted<KeyValueStore<K,MV,V>>, Updatable<MapView<K,MV,V>>, KeyedVisitable<K,V>, java.util.function.Function<K,V>, View

Interface for Map views.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method and Description
default V	apply(K k)
V	getAndPut(K key, V value) Explicitly get the old value before putting a new one.
V	getAndRemove(K key) Explicitly get the old value before removing.
V	getUsing(K key, MV using) Obtain a value using a mutable buffer privided.
default boolean	keyedView() If you attach a keyed view to an Asset, it is assumed that any child asset with be a SubAsset.
Class<K>	keyType()
long	longSize()
Reference<V>	referenceFor(K key) Obtain a reference the value for a key
void	registerKeySubscriber(Subscriber<K> subscriber) Add a Subscription for the keys changed on this Map
void	registerSubscriber(Subscriber<MapEvent<K,V>> subscriber) Add a Subscription for the MapEvents triggered by changes on this Map.
void	registerTopicSubscriber(TopicSubscriber<K,V> topicSubscriber) Add a TopicSubscriber to this Map.
default int	size()
Class<V>	valueType()

Methods inherited from interface java.util.concurrent.ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, values

Methods inherited from interface net.openhft.chronicle.engine.api.tree.Assetted

asset, underlying

Methods inherited from interface net.openhft.chronicle.engine.api.Updatable

applyTo, applyTo, asyncUpdate, asyncUpdate, syncUpdate, syncUpdate

Methods inherited from interface net.openhft.chronicle.engine.api.KeyedVisitable

applyToKey, applyToKey, asyncUpdateKey, asyncUpdateKey, get, set, syncUpdateKey, syncUpdateKey

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Method Detail

keyedView

default boolean keyedView()

Description copied from interface: View

If you attach a keyed view to an Asset, it is assumed that any child asset with be a SubAsset.

Specified by:

keyedView in interface View

Returns:

Is this a keyed view?

getUsing

V getUsing(K key,
           MV using)

Obtain a value using a mutable buffer privided.

Parameters:

key - to lookup.

using - a mutable buffer

Returns:

the value.

registerTopicSubscriber

void registerTopicSubscriber(TopicSubscriber<K,V> topicSubscriber)

Add a TopicSubscriber to this Map.

Parameters:

topicSubscriber - to add

registerKeySubscriber

void registerKeySubscriber(Subscriber<K> subscriber)

Add a Subscription for the keys changed on this Map

Parameters:

subscriber - to add

registerSubscriber

void registerSubscriber(Subscriber<MapEvent<K,V>> subscriber)

Add a Subscription for the MapEvents triggered by changes on this Map.

Parameters:

subscriber -

referenceFor

Reference<V> referenceFor(K key)

Obtain a reference the value for a key

Parameters:

key - to bind the reference to

Returns:

a reference object.

keyType

Class<K> keyType()

Returns:

the type of the keys

valueType

Class<V> valueType()

Returns:

the type of the values.

apply

default V apply(K k)

Specified by:

apply in interface java.util.function.Function<K,V>

size

default int size()

Specified by:

size in interface Map<K,V>

longSize

long longSize()

Returns:

the size as a long value.

getAndPut

V getAndPut(K key,
            V value)

Explicitly get the old value before putting a new one.

Parameters:

key - to lookup

value - to set

Returns:

the old value or null if absent

getAndRemove

V getAndRemove(K key)

Explicitly get the old value before removing.

Parameters:

key - to remove

Returns:

the old value or null if absent.