2012年6月25日 · If a file system folder is vital to your domain, I would implement the creation of folders as a domain service. That way, you would let the entity handle all business rules and logic and if the creation of a folder fails, your domain is not left in an invalid state.

One of the biggest pitfalls is that you end up with a so-called anemic model where your entities are primarily only data bearing and contain no business logic. This situation often arises when you build your domain model on top of an existing relational data model and just make each table in the database an entity in your domain model.

2015年8月25日 · I'm trying to find a good article/examples of how DDD entities treat errors (and what would be considered exceptional errors and what wouldn't) and how they pass them up to the calling application layer (which usually wraps operations in …

2022年9月20日 · There are multiple ways to implement validations, such as verifying data and raising exceptions if the validation fails. There are also more advanced patterns such as using the Specification pattern for validations, and the Notification pattern to return a collection of errors instead of returning an exception for each validation as it occurs.

2023年10月8日 · Learn how to handle errors effectively in Domain-Driven Design, with best practices and strategies for managing exceptions in applications. Welcome to my series Domain Driven Challenges, where we dive into Domain Driven Design topics that often are not focused on enough and I have seen implemented wrong while being a Tech Lead.

2017年12月28日 · One way to deal with this is to use pull-based listeners instead of push-based. Each listener keeps track of its last read message and can request "messages since X". You could use either polling or a notification when a new event comes in …

DDD fails when the domain doesn’t exist, not when devs misunderstand it; The biggest blocker is vague, undocumented, tribal business logic; Engineers can’t model what the business can’t define

2015年7月12日 · Not interacting with domain experts is one of a common set of mistakes done when using Domain-Driven Design (DDD), finding and correcting them early on may save a team time, Daniel Whittaker...

2023年9月29日 · Domain-Driven Design (DDD) is a popular approach for designing software systems that focus on the domain and its logic. In this blog post, we will explore some of the insights and...

2013年12月14日 · So I managed to get ddd installed, but it wasn't pretty. This is the error I got: configure: error: Cannot find termcap compatible library. !!! Please attach the following file when seeking support: Sure enough, "nm -D /lib64/libncurses.so | grep tgetent" returns nothing, so the symbol is not defined there.