Welcome!

... to the digital home of Steven Schwenke.

This site is supposed to be a showcase for my thoughts about software engineering, less a personal homepage. If you want to know more about me, invite me to a beer.

Also, have a look at my book "Developer on the Stage".

 
 
 
 

Book Review: "Influence" by Robert B. Cialdini

31 May 2020
Posted by Steven

Recently, I finished "Influence" by Robert B. Cialdini.  I like reading books about Psychology and "Influence" both is comprehensible and useful. In this article, I want to highlight some of the most important take-aways I found to be of relevance to my life.

Creating Tables for Hibernate Envers with Liquibase

28 May 2020
Posted by Steven

Recently, I wanted to keep the change history of entities saved via Hibernate and also have a versioned database. Hence, I used Hibernate Envers and Liquibase.

The tables for envers, both the revinfo table and the _AUD tables for each entity, have to be included in the changeset of Liquibase:

Mockito: Verifying method arguments with inOrder

15 May 2020
Posted by Steven

Yesterday, I learned how to verify the method parameter for multiple method calls in Mockito. My pair-programmer and I wrote code that send multiple messages to an Amazon SQSClient. We wanted to test if a) all expected send-calls were executed and b) if all of those had the correct argument.

On SO, we found the solution (rewritten for better understanding):

Spring HATEOAS: "links" vs "_links" and JSON formats

04 May 2020
Posted by Steven

Recently, I added Spring HATEOAS to the IT Hub. Refactoring the controller to return RepresentationModel and CollectionModel, I noticed something odd. When returning a collection of items, in the returned JSON, the links for each item were represented under "links". When returning a single item, the links for this item were represented under "_links". This article briefly explains the reasons for this and how to fix it.

lessons learned + news in April 2020

03 May 2020
Posted by Steven

This is what I learned in April 2020:

Counter Corona: Pair-Program everything!

01 May 2020
Posted by Steven

As most of us, my developer team and I are doing things quite different these days. For future readers: The Corona virus holds the whole world hostage. To stop the spread, humans in all countries try to avoid physical contact. Many developers already are experienced with working from home. My team and I did not have to change much in the last weeks because we have been working remotely from the beginning. Half of the team is working in Romania, the other half in Germany. To optimize the slightly new setting and to counter emotional isolation, we implemented some rules.

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