Package org.molgenis.data.cache.utils

Class CombinedEntityCache

java.lang.Object

org.molgenis.data.cache.utils.CombinedEntityCache

public class CombinedEntityCache
extends Object

Caches CacheHits with Entitys from different repositories in dehydrated form in a single combined Guava Cache.

Constructor Summary

Constructors

Constructor	Description
CombinedEntityCache(EntityHydration entityHydration, com.google.common.cache.Cache<EntityKey,CacheHit<Map<String,Object>>> cache)	Creates a new CombinedEntityCache

Method Summary

Modifier and Type	Method	Description
void	evict(Stream<EntityKey> entityKeys)
void	evictAll(EntityType entityType)	Evicts all entries from the cache that belong to a certain entityType.
Optional<CacheHit<Entity>>	getIfPresent(EntityType entityType, Object id)
Optional<CacheHit<Entity>>	getIfPresent(EntityType entityType, Object id, Fetch fetch)	Retrieves an entity from the cache if present.
void	put(Entity entity)	Inserts an entity into the cache.
void	putDeletion(EntityKey entityKey)	Caches the deletion of an entity instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

CombinedEntityCache

public CombinedEntityCache(EntityHydration entityHydration,
                           com.google.common.cache.Cache<EntityKey,CacheHit<Map<String,Object>>> cache)

Creates a new CombinedEntityCache

Parameters:

entityHydration - EntityHydration used to hydrate and dehydrate the entities and generate cache keys

cache - the Cache to store the CacheHits in

Method Detail

putDeletion

public void putDeletion(EntityKey entityKey)

Caches the deletion of an entity instance.

Parameters:

entityKey - the EntityKey of the deleted entity instance

evictAll

public void evictAll(EntityType entityType)

Evicts all entries from the cache that belong to a certain entityType.

Parameters:

entityType - the id of the entity whose entries are to be evicted

getIfPresent

public Optional<CacheHit<Entity>> getIfPresent(EntityType entityType,
                                               Object id)

getIfPresent

public Optional<CacheHit<Entity>> getIfPresent(EntityType entityType,
                                               Object id,
                                               @Nullable @CheckForNull
                                               Fetch fetch)

Retrieves an entity from the cache if present.

Parameters:

entityType - EntityType of the entity to retrieve

id - id value of the entity to retrieve

fetch - containing attributes to retrieve, can be null

Returns:

Optional CacheHit with the result from the cache, empty if no record of the entity is present in the cache

put

public void put(Entity entity)

Inserts an entity into the cache.

Parameters:

entity - the entity to insert into the cache

evict

public void evict(Stream<EntityKey> entityKeys)