Interface PdoCacheFactory

All Known Implementing Classes:
DefaultPdoCacheFactory
public interface PdoCacheFactory
Factory for PDO-Caches.
The factory keeps a list of all created caches.
Author:
harald

  • Method Details

    • getInstance

      static PdoCacheFactory getInstance()
      The singleton.
      Returns:
      the singleton

    • createCache

      <T extends PersistentDomainObject<T>> PdoCache<T> createCache(Class<T> clazz, boolean readOnly)
      Creates a PDO-cache.
      The cache is created with the default strategy PdoCacheStrategy.PRELOAD.
      Type Parameters:
      T - the PDO type
      Parameters:
      clazz - is the PDO-class managed by the cache
      readOnly - true if the cache is readonly
      Returns:
      the cache
      Throws:
      PersistenceException - if a cache is already registered for the class (PDO-caches are singletons per PDO-type)

    • createCacheIndex

      <T extends PersistentDomainObject<T>, C extends Comparable<? super C>> PdoCacheIndex<T,C> createCacheIndex(String name, BiFunction<DomainContext, C, T> selectFunction, Function<T,C> extractFunction)
      Creates an index for a PDO-cache.
      Type Parameters:
      T - the PDO type
      C - the key type
      Parameters:
      name - the index name
      selectFunction - the function to select a PDO by key
      extractFunction - the function to extract the key from a PDO
      Returns:
      the index

    • removeObjectsForSessionInAllCaches

      void removeObjectsForSessionInAllCaches(Session session)
      Removes all objects in ALL caches that refer to a given session.
      Useful after having closed a session in a TRIP-Server, for example.
      Parameters:
      session - the session (probably closed)

    • getAllCaches

      Collection<PdoCache<? extends PersistentDomainObject<?>>> getAllCaches()
      Gets all registered caches.
      Returns:
      a snapshot of all registered caches

    • getCache

      <T extends PersistentDomainObject<T>> PdoCache<T> getCache(Class<T> clazz)
      Checks whether a PDO-class provides a cache.
      Type Parameters:
      T - the PDO class type
      Parameters:
      clazz - the class
      Returns:
      the cache, null if none