org.onosproject.store.consistent.impl

Class AsyncCachingConsistentMap<K,V>

java.lang.Object

org.onosproject.store.consistent.impl.DefaultAsyncConsistentMap<K,V>

org.onosproject.store.consistent.impl.AsyncCachingConsistentMap<K,V>

Type Parameters:

K - key type

V - value type

All Implemented Interfaces:

org.onosproject.store.service.AsyncConsistentMap<K,V>

public class AsyncCachingConsistentMap<K,V>
extends DefaultAsyncConsistentMap<K,V>

Extension of DefaultAsyncConsistentMap that provides a weaker read consistency guarantee in return for better read performance.

For read/write operations that are local to a node this map implementation provides guarantees similar to a ConsistentMap. However for read/write operations executed across multiple nodes this implementation only provides eventual consistency.

Constructor Summary

Constructors

Constructor and Description
AsyncCachingConsistentMap(String name, org.onosproject.core.ApplicationId applicationId, Database database, org.onosproject.store.service.Serializer serializer, boolean readOnly, boolean purgeOnUninstall, boolean meteringEnabled)

Method Summary

Modifier and Type	Method and Description
protected void	beforeUpdate(K key) Pre-update hook for performing required checks/actions before going forward with an update operation.
CompletableFuture<org.onosproject.store.service.Versioned<V>>	get(K key)

Methods inherited from class org.onosproject.store.consistent.impl.DefaultAsyncConsistentMap

addListener, applicationId, clear, compute, computeIf, computeIfAbsent, computeIfPresent, containsKey, containsValue, dK, entrySet, isEmpty, keySet, name, notifyListeners, purgeOnUninstall, put, putAndGet, putIfAbsent, remove, remove, remove, removeListener, replace, replace, serializer, size, sK, values

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncCachingConsistentMap

public AsyncCachingConsistentMap(String name,
                                 org.onosproject.core.ApplicationId applicationId,
                                 Database database,
                                 org.onosproject.store.service.Serializer serializer,
                                 boolean readOnly,
                                 boolean purgeOnUninstall,
                                 boolean meteringEnabled)

Method Detail

get

public CompletableFuture<org.onosproject.store.service.Versioned<V>> get(K key)

Specified by:

get in interface org.onosproject.store.service.AsyncConsistentMap<K,V>

Overrides:

get in class DefaultAsyncConsistentMap<K,V>

beforeUpdate

protected void beforeUpdate(K key)

Description copied from class: DefaultAsyncConsistentMap

Pre-update hook for performing required checks/actions before going forward with an update operation.

Overrides:

beforeUpdate in class DefaultAsyncConsistentMap<K,V>

Parameters:

key - map key.