Class DoubleBarrelLRUCache LUCENENET specific class to nest the DoubleBarrelLRUCache.CloneableKey so it can be accessed without referencing the generic closing types of DoubleBarrelLRUCache<TKey, TValue>. Inheritance System.Object DoubleBarrelLRUCache DoubleBarrelLRUCache<TKey, TValue> Namespace: Lucene.Net.Util Assembly: Lucene.Net.dll Syntax public abstract class DoubleBarrelLRUCache : object