Package oracle.spatial.network.lod

Class LRUCachingHandler

  • All Implemented Interfaces:
    CachingHandler
    public class LRUCachingHandler
extends java.lang.Object
implements CachingHandler
    This class implements the Least Recently Used (LRU) caching handler.
    Since:
    11gR1

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object clone()
      Creates and returns a copy of this CachingHandler object.
      int[] getPartitionsToFlushOut​(java.util.Collection<java.lang.Integer> residentPartitions, int minNumNodesToFlushOut)
      Returns the IDs of the partitions to be flushed out.
      void updateRank​(LogicalPartition partition)
      Updates the rank of the partition in the cache.

      • Methods inherited from class java.lang.Object

        equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • LRUCachingHandler

        public LRUCachingHandler()

    • Method Detail

      • getPartitionsToFlushOut

        public int[] getPartitionsToFlushOut​(java.util.Collection<java.lang.Integer> residentPartitions,
                                     int minNumNodesToFlushOut)
                              throws LODNetworkException
        Description copied from interface: CachingHandler
        Returns the IDs of the partitions to be flushed out.
        Specified by:
        getPartitionsToFlushOut in interface CachingHandler
        Parameters:
        residentPartitions - resident partitions, which are the partitions to be excluded from the returned list.
        Returns:
        IDs of the partitions to be flushed out.
        Throws:
        LODNetworkException

      • updateRank

        public void updateRank​(LogicalPartition partition)
        Description copied from interface: CachingHandler
        Updates the rank of the partition in the cache. The rank will be used to determine which partitions to be flushed out of the cache when getPartitionsToFlushOut() is called.
        Specified by:
        updateRank in interface CachingHandler
        Parameters:
        partition - the partition object whose rank is to be updated

      • clone

        public java.lang.Object clone()
        Description copied from interface: CachingHandler
        Creates and returns a copy of this CachingHandler object.
        Specified by:
        clone in interface CachingHandler
        Overrides:
        clone in class java.lang.Object
        Returns: