/// <summary>
/// Initialize, loading all items from database
/// </summary>
public void InitCache()
{
_cacheTime = _dao.GetCurrentDate();
var list = _dao.Query <T>().ToList();
LoadItems(list);
_internalCacheTime = DateTime.Now;
Debug.Print("EntityCache.InitCache : {0:#,##0} Objects of Type {1} cached.", _items.Count, typeof(T).Name);
}