Package org.apache.groovy.json.internal

Class SimpleCache<K,V>

java.lang.Object
org.apache.groovy.json.internal.SimpleCache<K,V>
Type Parameters:
K - the key type
V - the value type
All Implemented Interfaces:
Cache<K,V>
public class SimpleCache<K,V> extends Object implements Cache<K,V>
Thin adapter that exposes CommonCache through the internal Cache API.

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimpleCache(int limit)
    Creates an LRU cache with the supplied size limit.
    SimpleCache(int limit, CacheType type)
    Creates a cache with the supplied size limit and eviction policy.

  • Method Summary

    Modifier and Type
    Method
    Description
    V
    get(K key)
    Retrieves a value and updates cache state as needed.
    V
    getSilent(K key)
    Retrieves a value using implementation-specific silent access semantics.
    void
    put(K key, V value)
    Stores a value under the supplied key.
    void
    remove(K key)
    Removes the value stored for the supplied key.
    int
    size()
    Returns the current number of cached entries.
    String
    toString()
    Returns the underlying cache state as a string.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • SimpleCache

      public SimpleCache(int limit, CacheType type)
      Creates a cache with the supplied size limit and eviction policy.
      Parameters:
      limit - the maximum number of entries
      type - the eviction strategy

    • SimpleCache

      public SimpleCache(int limit)
      Creates an LRU cache with the supplied size limit.
      Parameters:
      limit - the maximum number of entries

  • Method Details

    • put

      public void put(K key, V value)
      Stores a value under the supplied key.
      Specified by:
      put in interface Cache<K,V>
      Parameters:
      key - the cache key
      value - the cached value

    • get

      public V get(K key)
      Retrieves a value and updates cache state as needed.
      Specified by:
      get in interface Cache<K,V>
      Parameters:
      key - the cache key
      Returns:
      the cached value, or null if absent

    • getSilent

      public V getSilent(K key)
      Retrieves a value using implementation-specific silent access semantics.
      Specified by:
      getSilent in interface Cache<K,V>
      Parameters:
      key - the cache key
      Returns:
      the cached value, or null if absent

    • remove

      public void remove(K key)
      Removes the value stored for the supplied key.
      Specified by:
      remove in interface Cache<K,V>
      Parameters:
      key - the cache key

    • size

      public int size()
      Returns the current number of cached entries.
      Specified by:
      size in interface Cache<K,V>
      Returns:
      the cache size

    • toString

      public String toString()
      Returns the underlying cache state as a string.
      Overrides:
      toString in class Object
      Returns:
      the cache state string