Package uk.num.numlib.internal.util

Class SimpleCache<K,​V>

java.lang.Object
uk.num.numlib.internal.util.SimpleCache<K,​V>
Type Parameters:
K - The class that the keys will be instances of.
V - The class that the values will be instances of.
public final class SimpleCache<K,​V>
extends java.lang.Object
A very basic cache with a timeout mechanism.

  • Constructor Summary

    Constructors 
    Constructor Description
    SimpleCache()
    Default Constructor

  • Method Summary

    Modifier and Type Method Description
    V get​(K key)
    Get an item from the cache.
    void put​(K key, V value)
    Add an item to the cache.
    void setTimeToLive​(int millis)
    Override the default cache timeout.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • SimpleCache

      public SimpleCache()
      Default Constructor

  • Method Details

    • setTimeToLive

      public void setTimeToLive​(int millis)
      Override the default cache timeout. Can be set at any time but only affects items cached after the value is set.
      Parameters:
      millis - The number of milliseconds until the cached item should be considered stale.

    • put

      public void put​(K key, V value)
      Add an item to the cache.
      Parameters:
      key - The key of class K
      value - The value of class V

    • get

      public V get​(K key)
      Get an item from the cache.
      Parameters:
      key - The key of class K
      Returns:
      null if the item is not present or has expired, otherwise the value of class V