Class JDOQueryCache

  • All Implemented Interfaces:
    java.io.Serializable

    public class JDOQueryCache
    extends java.lang.Object
    implements java.io.Serializable
    Implementation of the JDO QueryCache. Provides a wrapper and hands off calls to the underlying query cache.
    See Also:
    Serialized Form
    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) org.datanucleus.store.query.cache.QueryResultsCache resultsCache  
      private static long serialVersionUID  
    • Constructor Summary

      Constructors 
      Constructor Description
      JDOQueryCache​(org.datanucleus.store.query.cache.QueryResultsCache cache)
      Constructor.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void evict​(javax.jdo.Query query)
      Evict all cached results for the provided query.
      void evict​(javax.jdo.Query query, java.util.Map params)
      Evict the cached results for the provided query and params.
      void evictAll()
      Evict the parameter instances from the second-level cache.
      org.datanucleus.store.query.cache.QueryResultsCache getQueryCache()
      Accessor for the underlying query cache.
      void pin​(javax.jdo.Query query)
      Method to pin the specified query in the cache, preventing garbage collection.
      void pin​(javax.jdo.Query query, java.util.Map params)
      Method to pin the specified query in the cache, preventing garbage collection.
      void unpin​(javax.jdo.Query query)
      Method to unpin the specified query from the cache, allowing garbage collection.
      void unpin​(javax.jdo.Query query, java.util.Map params)
      Method to unpin the specified query from the cache, allowing garbage collection.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • resultsCache

        org.datanucleus.store.query.cache.QueryResultsCache resultsCache
    • Constructor Detail

      • JDOQueryCache

        public JDOQueryCache​(org.datanucleus.store.query.cache.QueryResultsCache cache)
        Constructor.
        Parameters:
        cache - Query results cache
    • Method Detail

      • getQueryCache

        public org.datanucleus.store.query.cache.QueryResultsCache getQueryCache()
        Accessor for the underlying query cache.
        Returns:
        Underlying query cache.
      • evict

        public void evict​(javax.jdo.Query query)
        Evict all cached results for the provided query.
        Parameters:
        query - The JDO query
      • evict

        public void evict​(javax.jdo.Query query,
                          java.util.Map params)
        Evict the cached results for the provided query and params.
        Parameters:
        query - The JDO query
        params - The input params
      • 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.
      • pin

        public void pin​(javax.jdo.Query query)
        Method to pin the specified query in the cache, preventing garbage collection.
        Parameters:
        query - The query
      • pin

        public void pin​(javax.jdo.Query query,
                        java.util.Map params)
        Method to pin the specified query in the cache, preventing garbage collection.
        Parameters:
        query - The query
        params - Its params
      • unpin

        public void unpin​(javax.jdo.Query query)
        Method to unpin the specified query from the cache, allowing garbage collection.
        Parameters:
        query - The query
      • unpin

        public void unpin​(javax.jdo.Query query,
                          java.util.Map params)
        Method to unpin the specified query from the cache, allowing garbage collection.
        Parameters:
        query - The query
        params - Its params