Category Archives: patterns

When developing with MonoRail, one of the common operations is to redirect to other controllers and actions.  Originally, I looked at the BaseControllerTester to help test, but it required a little too much knowledge of the inner workings of MonoRail … Continue reading →

When someone is using your code, you want your code to be as explicit and easy to understand as possible.  This is achieved through Intention-Revealing Interfaces.  Evans describes the problems of opaque and misleading interfaces in Domain-Driven Design: If a developer … Continue reading →

Joe posed a great question on my recent entity validation post: I question the term Validator in relation to DDD.  Since the operation of the Validator seems to be a simple predicate based on business rule shouldn’t the term Specification … Continue reading →

On the Yahoo ALT.NET group, an interesting conversation sprung up around the topic of validation.  Entity validation can be a tricky beast, as validation rules typically depend on the context of the operation (persistence, business rules, etc.). In complex scenarios, … Continue reading →