We have seen how a list of objects was returned from the repository in a generic fashion. Let's have a provision to return a single object from the repository:
public interface IPostRepositoryWithQueries { // Code removed for brevity Post GetSingle<T>(T query) where T : class; Task<Post> GetSingleAsync<T>(T query) where T : class; }
The preceding code adds synchronous and asynchronous methods to return a single Post object from the repository, still retaining the generic implementation since it could be used by multiple query objects that might return individual Post objects:
public class GetPostByIdQuery { public GetPostByIdQuery(int? id, bool includeData) { this.Id = id; this.IncludeData = ...