my attempt at ravendb dynamic index

raven dynamic index

public class DynamicIndex : AbstractMultiMapIndexCreationTask<DynamicIndex.ReduceResult>
    {
        public class ReduceResult
        {
            public string Value { get; set; }
            public int Count { get; set; }
        }

        public DynamicIndex()
        {
            IEnumerable<PropertyInfo> propertyInfos = GetThePropertyInfos();

            foreach (var property in propertyInfos)
            {
                AddMap<object>(content => content
                    .SelectMany(c => (IEnumerable<string>)c.GetPropertyValue(property.Name))
                    .Select(x => new ReduceResult
                    {
                        Value = x,
                        Count = 1
                    }));

            }

            Reduce = results => from r in results
                                group r by r.Value into g
                                select new ReduceResult
                                {
                                    Value = g.Key,
                                    Count = g.Sum(x => x.Count)
                                };
        }

        private IEnumerable<PropertyInfo> GetThePropertyInfos()
        {
            // implementation omitted
        }
    }