Package com.tangosol.net.cache

Interface ConfigurableCacheMap.EvictionPolicy

All Known Implementing Classes:
AbstractEvictionPolicy, LocalCache.InternalEvictionPolicy, SerializationCache.InternalEvictionPolicy
Enclosing interface:
ConfigurableCacheMap
public static interface ConfigurableCacheMap.EvictionPolicy
An eviction policy is an object that the cache provides with access information, and when requested, the eviction policy selects and evicts entries from the cache. If the eviction policy needs to be aware of changes to the cache, it must implement the MapListener interface; if it does, it will automatically be registered to receive MapEvents.
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    entryTouched(ConfigurableCacheMap.Entry entry)
    This method is called by the cache to indicate that an entry has been touched.
    String
    getName()
    Obtain the name of the eviction policy.
    void
    requestEviction(int cMaximum)
    This method is called by the cache when the cache requires the eviction policy to evict entries.

  • Method Details

    • entryTouched

      void entryTouched(ConfigurableCacheMap.Entry entry)
      This method is called by the cache to indicate that an entry has been touched.
      Parameters:
      entry - the Cache Entry that has been touched

    • requestEviction

      void requestEviction(int cMaximum)
      This method is called by the cache when the cache requires the eviction policy to evict entries.
      Parameters:
      cMaximum - the maximum number of units that should remain in the cache when the eviction is complete

    • getName

      String getName()
      Obtain the name of the eviction policy. This is intended to be human readable for use in a monitoring tool; examples include "LRU" and "LFU".
      Returns:
      the name of the eviction policy