Package org.apache.jackrabbit.spi.commons

Class ItemInfoCacheImpl

  • All Implemented Interfaces:
    org.apache.jackrabbit.spi.ItemInfoCache
    public class ItemInfoCacheImpl
extends Object
implements org.apache.jackrabbit.spi.ItemInfoCache
    This implementation of ItemInfoCache has a default size of 5000 items. Item infos are put into the cache after they have been read from the RepositoryService. If the cache is full, the oldest item is discarded. Reading items removes them from the cache. The underlying idea here is, that ItemInfos which are supplied by the RepositoryService but not immediately needed are put into the cache to avoid further round trips to RepositoryService. When they are needed later, they are read from the cache. There is no need to keep them in this cache after that point since they are present in the hierarchy from then on.

    • Nested Class Summary

      • Nested classes/interfaces inherited from interface org.apache.jackrabbit.spi.ItemInfoCache

        org.apache.jackrabbit.spi.ItemInfoCache.Entry<T extends org.apache.jackrabbit.spi.ItemInfo>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static int DEFAULT_CACHE_SIZE
      Default size of the cache.

    • Constructor Summary

      Constructors 
      Constructor Description
      ItemInfoCacheImpl()
      Create a new instance with the default cache size.
      ItemInfoCacheImpl​(int cacheSize)
      Create a new instance with a given cache size.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void dispose()  
      org.apache.jackrabbit.spi.ItemInfoCache.Entry<org.apache.jackrabbit.spi.NodeInfo> getNodeInfo​(org.apache.jackrabbit.spi.NodeId nodeId)
      This implementation removes the item from the cache if it is present.
      org.apache.jackrabbit.spi.ItemInfoCache.Entry<org.apache.jackrabbit.spi.PropertyInfo> getPropertyInfo​(org.apache.jackrabbit.spi.PropertyId propertyId)
      This implementation removes the item from the cache if it is present.
      void put​(org.apache.jackrabbit.spi.ItemInfo info, long generation)
      This implementation cached the item by its id and if the id is uuid based but has no path, also by its path.

    • Field Detail

      • DEFAULT_CACHE_SIZE

        public static final int DEFAULT_CACHE_SIZE
        Default size of the cache.
        See Also:
        Constant Field Values

    • Constructor Detail

      • ItemInfoCacheImpl

        public ItemInfoCacheImpl()
        Create a new instance with the default cache size.
        See Also:
        DEFAULT_CACHE_SIZE

      • ItemInfoCacheImpl

        public ItemInfoCacheImpl​(int cacheSize)
        Create a new instance with a given cache size.
        Parameters:
        cacheSize -

    • Method Detail

      • getNodeInfo

        public org.apache.jackrabbit.spi.ItemInfoCache.Entry<org.apache.jackrabbit.spi.NodeInfo> getNodeInfo​(org.apache.jackrabbit.spi.NodeId nodeId)
        This implementation removes the item from the cache if it is present. Furthermore if the nodeId id uuid based, and no item is found by the nodeId a second lookup is done by the path.
        Specified by:
        getNodeInfo in interface org.apache.jackrabbit.spi.ItemInfoCache

      • getPropertyInfo

        public org.apache.jackrabbit.spi.ItemInfoCache.Entry<org.apache.jackrabbit.spi.PropertyInfo> getPropertyInfo​(org.apache.jackrabbit.spi.PropertyId propertyId)
        This implementation removes the item from the cache if it is present. Furthermore if the propertyId id uuid based, and no item is found by the propertyId a second lookup is done by the path.
        Specified by:
        getPropertyInfo in interface org.apache.jackrabbit.spi.ItemInfoCache

      • put

        public void put​(org.apache.jackrabbit.spi.ItemInfo info,
                long generation)
        This implementation cached the item by its id and if the id is uuid based but has no path, also by its path.
        Specified by:
        put in interface org.apache.jackrabbit.spi.ItemInfoCache

      • dispose

        public void dispose()
        Specified by:
        dispose in interface org.apache.jackrabbit.spi.ItemInfoCache