I'm getting the following error when trying to do a linq query: LINQ to Entities does not recognize the method 'Boolean IsCharityMatching(System.String, System.String)' method, and this method...

I wrote two Specifications which return null if their parameter is null. public static Specification<Prodotto> getProdottoByLineaSpec (String linea) { if (linea != null) { return (root, q...

I use spring data and the JpaSpecificationExecutor::findAll method to fetch my models. How I could use query hints when calling this method? The above source code works fine but I can't set QueryHi...

I'm trying to apply Specification pattern to my validation logic. But I have some problems with async validation. Let's say I have an entity AddRequest (has 2 string property FileName and Content) ...

After reading a series of blogs (here and here) by Chris Missal from LosTechies.com on the Specification Pattern I am am really interested in finding more complete examples. Does anyone know ...

I'm just wondering if Specification pattern is pointless, given following example: Say you want to check if a Customer has enough balance in his/her account, you would create a specification somet...

Wikipedia states that the Specification Pattern is where business logic can be recombined by chaining the business logic together using boolean logic. With respect to selecting filtering objects fr...

I am checking out the "Promises/A+" Specification, but could not understand the following things: On Section 1. Terminology, 1.1. "promise” is an object or function with a then method whose behav...

I have picked up a project that uses the specification pattern, a pattern I have not used before, and I had to go and research the pattern. I have noticed it doesn't have OrderBy and Skip/Take func...

I'm currently setting up a new project, and I have run into a few things, where I need a little input. This is what i'm considering: I would like a generic repository I don't want to return IQue...

I've been searching for quite some time for a good solution to the problems presented by the typical Repository pattern (growing list of methods for specialized queries, etc.. see: http://ayende.co...

OK, we have to calculate eligibility and rates for insanely complicated insurance enrollment data. Policies can be available based on age, employment characteristics, shoe size, etc. People born be...

So, I've looked at some posts about the Specification Pattern here, and haven't found an answer to this one yet. My question is, in an n-layered architecture, where exactly should me Specification...

I'm using specifications in this kind of form: public static Expression<Func<User, bool>> IsSuperhero { get { return x => x.CanFly && x.CanShootLasersFromEyes; } } Now...

Sometimes you need to define some business rules and the Specification pattern is a useful tool. For example: public class CanBorrowBooksSpec : ISpecification<Customer> { public bool Satisf...

I am trying to grasp specification pattern and i get confused a little about it. I really couldn't found it helpful for my specific requirements. I want to know that what is problem if i prefer ext...

I'm doing some R&D work, and as such am exploring design patterns. I have recently been reading up on the Specification pattern and was referred to this great article. I was intrigued by the s...

I have created a factory and a set of specifications to create and validate an aggregate root. Currently I have some tests for the factory that call the specifications on the product of the factory...