public void Apply(object obj)
        {
            var boardCollection = obj as BoardCollection;

            if (boardCollection == null)
            {
                return;
            }

            boardCollection.Links = new List <Link>
            {
                new Link
                {
                    Rel  = Link.SELF,
                    Href = linkFactory.Build("BoardSearch", new {})
                }
            };

            if (boardCollection.Items == null)
            {
                return;
            }

            foreach (var board in boardCollection.Items)
            {
                boardState.Apply(board);
            }
        }