All posts by Grzegorz Ziemoński

Web MVC with Spring and Business Objects

In the previous posts, we explored the MVC Pattern Language by Trygve Reenskaug and made an attempt to implement MVC in the console, while focusing on MVC’s overarching idea – supporting users’

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Poor Man’s Console MVC

After two posts of pure theory about the MVC Pattern Language, I was looking to provide some practical examples. The technical part is easy – everybody already knows how to implement that in various

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MVC Pattern Language (Part 2)

Welcome to the second part of my write-up about the MVC Pattern Language! In case you missed the first part, this two-part piece targets popular misconceptions about MVC and tries to shed some “new”

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MVC Pattern Language (Part 1)

There seems to be a lot of misconceptions related to MVC. Some consider it a technique for code reuse, others think it’s how you group classes in web applications and some even mistaken it for the

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The Garage Architecture

After a couple of weeks break, we’re back to our architecture series. This time we’ll look at something I’ve recently come up with – The Garage Architecture! Background I’ve

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Value Objects

Since I’ve already set you up in a DDD mood with the previous post, let’s capitalize on that further. In this post, I’ll try to provide an easy explanation of Value Objects and their

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Aggregate Pattern

I’ve recently done some reading on DDD and Aggregates in particular. Since many people struggle to understand the pattern, I decided to try to explain it myself. Problem Imagine that you’re

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The Stepdown Rule

It has recently occurred to me that some people are ordering the functions in a class randomly, mostly based on gut feelings. It’s a good indicator that we should rehash the old, simple but very

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Entity Objects Power Ranking

There seems to be an ever-ongoing discussion about how powerful should an entity object be. That’s indeed a very valid discussion as the choice that we make (often unconsciously) will have a huge

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Reactive Clean Architecture with Vert.x

I have recently written about Clean Architecture and provided an implementation example by Uncle Bob himself. This time, we’ll look at the implementation from a bit different angle i.e. is it possible

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