ntinnemeier – 5 articles

Know what you deploy – a script using git log for listing all features that go live

Nick Tinnemeier, Dennis de Bode, on 19-03-2021
Category: Blog, Development Tags: git shell script git log automate deploy list features that go live

Introduction For me, even after having pushed the deploy button many times, deploying to production keeps being dreadful. Accidentally pushing an unwanted feature that sneaked in somehow is one of the many things I am afraid of. In this blog post I show you how we reduced our deployment anxiety with a script using git log for listing all the features that go live after pushing that deploy-to-pro button. In this blog post I first introduce you to the way we work and provide you with the necessary information to…

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How to map optional fields with MapStruct

Nick Tinnemeier, on 5-02-2021
Category: Development Tags: mapping MapStruct Java Optional mappers

Introduction MapStruct is a framework that alleviates us, programmers, from the unexciting task of writing code to copy one object model to another, field by field. In this blog we show you how to map optional fields with MapStruct. If, after reading this, you still wonder what MapStruct is and what it can do for you, then this blog could answer those questions for you: https://techlab.bol.com/mapping-object-models-case-study/. This blog zooms in on MapStruct’s capabilities of dealing with source fields that are not always present, i.e. might be null. In particular, we…

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How to write MapStruct mappers for object hierarchies

Nick Tinnemeier, on 1-02-2021
Category: Development Tags: Java mapping MapStruct hierarchies inheritance object hierarchies class hierarchy

Introduction MapStruct is a framework that alleviates us, programmers, from the unexciting task of writing code to copy one object model to another, field by field. This blog elaborates on how to write MapStruct mappers for object hierarchies. If, after reading this, you still wonder what MapStruct is and what it can do for you, then this blog might be a good read: https://techlab.bol.com/mapstruct-case-study/. To already spoil the fun, MapStruct is not able to generate mappers for classes that all inherit from the same (abstract) base class or interface. In…

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Mapping object models with MapStruct – a case study

Nick Tinnemeier, on 6-01-2021
Category: Development Tags: Java MapStruct mappers mapping object models converters code generation

Introduction I was once told that a good programmer is a lazy programmer. A good programmer avoids typing tedious code, where the code could basically write itself. Self-writing code – wouldn’t that be great? Unfortunately, we’re not quite there yet. We show you how close to self-writing code you can get. In this blog we will present a case study using MapStruct for mapping object models. In particular, we zoom in on how the MapStruct framework alleviates us from the dull task of writing code to copy one object model…

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From database killer to top performer!

Nick Tinnemeier, on 12-06-2017
Category: Blog, Culture, Development Tags: Architecture Microservices database Grafana

How do you get the IT management board to serve you coffee on a golden platter? You have to do something good of course, exceptional in fact. In order to tell you how we became top performer instead of database killer by creative use of a cache, we will have to take you back to December 2015, when it all started.

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