Class CacheEntry<T>

  • All Implemented Interfaces:
    java.lang.Comparable

    public class CacheEntry<T>
    extends java.lang.Object
    implements java.lang.Comparable
    An entry in the cache implementation.

    A cache entries "importance" is expressed by a "sample". The CacheEntry with the smallest sample is considered the least valuable.

    This implementation supports a simple "most recently used" strategy.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected CacheEntry​(java.lang.Object key, T value)
      Create a cache entry.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int compareTo​(java.lang.Object o)  
      java.lang.Object getKey()
      The key of the cache entry.
      int getSample()
      The sample representing the "importance" of the entry.
      T getValue()
      The value of the cache entry.
      protected void touch()
      Mark the Cache entry as recently used.
      • Methods inherited from class java.lang.Object

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

      • CacheEntry

        protected CacheEntry​(java.lang.Object key,
                             T value)
        Create a cache entry.
        Parameters:
        key - The key for the entry
        value - The value for the entry
    • Method Detail

      • compareTo

        public int compareTo​(java.lang.Object o)
        Specified by:
        compareTo in interface java.lang.Comparable<T>
      • getKey

        public java.lang.Object getKey()
        The key of the cache entry.
        Returns:
        Returns the key.
      • getSample

        public int getSample()
        The sample representing the "importance" of the entry.
        Returns:
        Returns the sample.
      • getValue

        public T getValue()
        The value of the cache entry.
        Returns:
        Returns the value.
      • touch

        protected void touch()
        Mark the Cache entry as recently used.