Package org.fcrepo.kernel.api.cache

Interface UserTypesCache

public interface UserTypesCache
Cache of user RDF types. This cache has two levels. Types are cached at the session level as well as globally. This is necessary to support long-running transactions that can span multiple requests.
Author:
pwinckles

  • Method Details

    • getUserTypes

      List<URI> getUserTypes(FedoraId resourceId, String sessionId, Supplier<RdfStream> rdfProvider)
      Gets the user RDF types for the specified resource from the cache. First, the session's cache is checked. If the types were not found, then the global cache is checked. If not in either cache, then the rdfProvider is called to load the resource's RDF from which the types are parsed, cached, and returned. This method should NOT be called on binary resources.
      Parameters:
      resourceId - the id of the resource
      sessionId - the id of the current session
      rdfProvider - the provider that is called, if needed, to load the resource's rdf
      Returns:
      the resource's user RDF types

    • cacheUserTypes

      void cacheUserTypes(FedoraId resourceId, RdfStream rdf, String sessionId)
      Extracts the user RDF types from the RDF and caches them in the session level cache.
      Parameters:
      resourceId - the id of the resource
      rdf - the resource's RDF
      sessionId - the session to cache the types in

    • cacheUserTypes

      void cacheUserTypes(FedoraId resourceId, List<URI> userTypes, String sessionId)
      Caches the user RDF types in the session level cache.
      Parameters:
      resourceId - the id of the resource
      userTypes - the resource's types
      sessionId - the session to cache the types in

    • mergeSessionCache

      void mergeSessionCache(String sessionId)
      Merges the session level cache into the global cache.
      Parameters:
      sessionId - the id of the session to merge

    • dropSessionCache

      void dropSessionCache(String sessionId)
      Drops a session level cache without merging it into the global cache.
      Parameters:
      sessionId - the id of the session cache to drop