The Tor Browser: mobile/android/base/util/NonEvictingLruCache.java@b8a032363ba2 (annotated)

mobile/android/base/util/NonEvictingLruCache.java@b8a032363ba2 (annotated)

Thu, 22 Jan 2015 13:21:57 +0100

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 package org.mozilla.gecko.util;
 import android.support.v4.util.LruCache;
 import java.util.concurrent.ConcurrentHashMap;
 /**
  * An LruCache that also supports a set of items that will never be evicted.
  *
  * Alas, LruCache is final, so we compose rather than inherit.
  */
 public class NonEvictingLruCache<K, V> {
     private final ConcurrentHashMap<K, V> permanent = new ConcurrentHashMap<K, V>();
     private final LruCache<K, V> evictable;
     public NonEvictingLruCache(final int evictableSize) {
         evictable = new LruCache<K, V>(evictableSize);
     }
     public V get(K key) {
         V val = permanent.get(key);
         if (val == null) {
             return evictable.get(key);
         }
         return val;
     }
     public void putWithoutEviction(K key, V value) {
         permanent.put(key, value);
     }
     public void put(K key, V value) {
         evictable.put(key, value);
     }
     public void evictAll() {
         evictable.evictAll();
     }
 }