/// <summary>
/// Initializes a new instance of the <see cref="CachingWrapper{TKey,TValue}"/> class.
/// </summary>
/// <param name="originalSourceRetriever">The method that will return an element if it is not in the cache.</param>
/// <param name="capacity">The maximum capacity of the cache. Use zero for infinite, non LRU capacity</param>
public CachingWrapper(RetrieveFromOriginalSource originalSourceRetriever, int capacity)
{
if (originalSourceRetriever == null)
{
throw new ArgumentException("originalSourcerRetriever cannot be null");
}
_originalSourceRetriever += originalSourceRetriever;
_capacity = capacity;
if (capacity > 0)
{
_localCache = new Dictionary<TKey, TValue>(capacity);
_lruList = new IndexedLinkedList<TKey>();
}
else
{
_localCache = new Dictionary<TKey, TValue>();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CachingWrapper{TKey,TValue}"/> class.
/// </summary>
/// <param name="originalSourceRetriever">The method that will return an element if it is not in the cache.</param>
public CachingWrapper(RetrieveFromOriginalSource originalSourceRetriever : this(originalSourceRetriever, 0)
{
}
