Package org.datanucleus.cache.ehcache

Class EhcacheClassBasedLevel2Cache

  • All Implemented Interfaces:
    Serializable, org.datanucleus.cache.Level2Cache
    public class EhcacheClassBasedLevel2Cache
extends org.datanucleus.cache.AbstractLevel2Cache
    Plugin for EHCache that allows the user to use different caches for different classes. Based on the EhcacheLevel2Cache class.
    See Also:
    Serialized Form

    • Field Summary

      • Fields inherited from class org.datanucleus.cache.AbstractLevel2Cache

        cacheName, clearAtClose, expiryMillis, maxSize, nucleusCtx

    • Constructor Summary

      Constructors 
      Constructor Description
      EhcacheClassBasedLevel2Cache​(org.datanucleus.NucleusContext nucleusCtx)
      Constructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Method to close the cache when no longer needed.
      boolean containsOid​(Object oid)
      Accessor for whether an object with the specified id is in the cache
      void evict​(Object oid)
      Evict the parameter instance from the second-level cache.
      void evictAll()
      Evict the parameter instances from the second-level cache.
      void evictAll​(Class pcClass, boolean subclasses)
      Evict the parameter instances from the second-level cache.
      void evictAll​(Object[] oids)
      Evict the parameter instances from the second-level cache.
      void evictAll​(Collection oids)
      Evict the parameter instances from the second-level cache.
      org.datanucleus.cache.CachedPC get​(Object oid)
      Accessor for an object from the cache.
      int getSize()
      Accessor for the size of the cache.
      org.datanucleus.cache.CachedPC put​(Object oid, org.datanucleus.cache.CachedPC pc)
      Method to add an object to the cache under its id

      • Methods inherited from interface org.datanucleus.cache.Level2Cache

        getAll, getNumberOfPinnedObjects, getNumberOfUnpinnedObjects, getUnique, isEmpty, pin, pinAll, pinAll, pinAll, putAll, putUnique, putUniqueAll, removeUnique, unpin, unpinAll, unpinAll, unpinAll

    • Constructor Detail

      • EhcacheClassBasedLevel2Cache

        public EhcacheClassBasedLevel2Cache​(org.datanucleus.NucleusContext nucleusCtx)
        Constructor.
        Parameters:
        nucleusCtx - Context

    • Method Detail

      • close

        public void close()
        Method to close the cache when no longer needed. Provides a hook to release resources etc.

      • containsOid

        public boolean containsOid​(Object oid)
        Accessor for whether an object with the specified id is in the cache
        Parameters:
        oid - The object id
        Returns:
        Whether it is in the cache

      • get

        public org.datanucleus.cache.CachedPC get​(Object oid)
        Accessor for an object from the cache.
        Parameters:
        oid - The Object ID
        Returns:
        The L2 cacheable object

      • getSize

        public int getSize()
        Accessor for the size of the cache.
        See Also:
        Level2Cache.getSize()

      • put

        public org.datanucleus.cache.CachedPC put​(Object oid,
                                          org.datanucleus.cache.CachedPC pc)
        Method to add an object to the cache under its id
        Parameters:
        oid - The identity
        pc - The cacheable object

      • evict

        public void evict​(Object oid)
        Evict the parameter instance from the second-level cache.
        Parameters:
        oid - the object id of the instance to evict.

      • evictAll

        public void evictAll()
        Evict the parameter instances from the second-level cache. All instances in the PersistenceManager's cache are evicted from the second-level cache.

      • evictAll

        public void evictAll​(Class pcClass,
                     boolean subclasses)
        Evict the parameter instances from the second-level cache.
        Parameters:
        pcClass - the class of instances to evict
        subclasses - if true, evict instances of subclasses also

      • evictAll

        public void evictAll​(Collection oids)
        Evict the parameter instances from the second-level cache.
        Parameters:
        oids - the object ids of the instance to evict.

      • evictAll

        public void evictAll​(Object[] oids)
        Evict the parameter instances from the second-level cache.
        Parameters:
        oids - the object ids of the instance to evict.