Package com.tangosol.net.cache

Class CompactSerializationCache.InternalEvictionPolicy.EvictionVisitor

java.lang.Object
com.tangosol.net.cache.CompactSerializationCache.InternalEvictionPolicy.EvictionVisitor
All Implemented Interfaces:
BinaryLongMap.EntryVisitor, MultiBinaryLongMap.SafeEntryVisitor
Enclosing class:
CompactSerializationCache.InternalEvictionPolicy
protected class CompactSerializationCache.InternalEvictionPolicy.EvictionVisitor extends Object implements MultiBinaryLongMap.SafeEntryVisitor
SafeEntryVisitor implementation that calculates the set of eviction candidates.

The EvictionVisitor is to be applied to Entries of a BinaryLongMap that associates cache keys to their size in units (as determined by the configured unit-calculator).

  • Field Details

    • f_setEvicting

      protected final SortedSet<CompactSerializationCache.InternalEvictionPolicy.EvictionCandidate> f_setEvicting
      The Map containing the keys which are candidates for eviction, mapped to their size in units.

    • f_cUnitsToEvict

      protected final long f_cUnitsToEvict
      The minimum number of units to evict.

    • m_cUnitsEvicting

      protected long m_cUnitsEvicting
      The number of units occupied by the entries in the eviction set. Used during the iteration (evict-set calculation) only.

    • m_lKeepThreshold

      protected long m_lKeepThreshold
      The weight of the lightest entry that we have decided to keep. All of the entries to evict will be lighter than this threshold.

  • Constructor Details

    • EvictionVisitor

      public EvictionVisitor(long cLowUnits)
      Construct an EvictionVisitor to identify the set of keys to evict from the cache in order to prune the cache down to the specified low-units threshold
      Parameters:
      cLowUnits - the low-units threshold to prune the cache to

  • Method Details