Package com.linkedin.davinci.store.cache.backend

Class ObjectCacheBackend

java.lang.Object

com.linkedin.davinci.store.cache.backend.ObjectCacheBackend

public class ObjectCacheBackend
extends Object

This class is in charge of managing access and maintenance of a VeniceStoreCache. It makes available simple CRUD operations that can be performed on the cache

Constructor Summary

Constructors

Constructor	Description
ObjectCacheBackend(ClientConfig clientConfig, ObjectCacheConfig cacheConfig, ReadOnlySchemaRepository schemaRepository)

Method Summary

Modifier and Type	Method	Description
void	clearCachedPartitions(Version version)
void	close()
<K, V> CompletableFuture<V>	get(K key, Version version, com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)
<K, V> CompletableFuture<Map<K,V>>	getAll(Iterable<K> keys, Version version, Function<Iterable<K>,Map<K,V>> mappingFunction, com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)
StoreDataChangedListener	getCacheInvalidatingStoreChangeListener()
StorageEngine	getStorageEngine(String topicName)
ObjectCacheConfig	getStoreCacheConfig()
<K, V> void	update(K key, V val, Version version, com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectCacheBackend

public ObjectCacheBackend(ClientConfig clientConfig,
 ObjectCacheConfig cacheConfig,
 ReadOnlySchemaRepository schemaRepository)

Parameters:

clientConfig - configurations that enabled the VeniceStoreCacheBackend to interact with a venice cluster (to set up ingestion) as well as store information (such as the store name that is being cached).

cacheConfig - configurations that configure the cache policy (TTL, size, etc.)

Method Details

close

public void close()

clearCachedPartitions

public void clearCachedPartitions(Version version)

get

public <K,
V> CompletableFuture<V> get(K key,
 Version version,
 com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)

getAll

public <K,
V> CompletableFuture<Map<K,V>> getAll(Iterable<K> keys,
 Version version,
 Function<Iterable<K>,Map<K,V>> mappingFunction,
 com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)

getStorageEngine

public StorageEngine getStorageEngine(String topicName)

update

public <K,
V> void update(K key,
 V val,
 Version version,
 com.github.benmanes.caffeine.cache.AsyncCacheLoader<K,V> cacheLoader)

getCacheInvalidatingStoreChangeListener

public StoreDataChangedListener getCacheInvalidatingStoreChangeListener()

getStoreCacheConfig

public ObjectCacheConfig getStoreCacheConfig()