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Spring – Persistence layer – writing entities and configuring Hibernate

Welcome to the second part of this tutorial. Don’t freak out when you see how long this article is – I promise you it’s mostly easy POJOs and some generated code. Before we start, ...
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Spring – Designing the domain model and the service layer

We are going to build application for timesheet management. So let’s think about some uses cases and entities first. Let me write them in the few bullets:Task is assigned to employee ...
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Using PowerMock to Mock Constructors

In my opinion, one of the main benefits of dependency injection is that you can inject mock and/or stub objects into your code in order to improve testability, increase test coverage ...
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Camel: Build a message based application

This is a long article that contains three separate topics:Getting started with Apache Camel with Java Improving startup of routes with a CamelRunner Building message based application ...
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Configure timeout for CDI conversations

CDI conversation scope is a nice feature when developing JSF applications. Imagine you have large data tables which take a long time to be loaded. You normally don’t want to place ...
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Hibernate: save vs persist and saveOrUpdate

What is difference between save and saveOrUpdate or Difference between save and persist ...
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Software Development tips and tricks

These are just some tips and tricks I learnt over my career that I’d like to share. This list does not contains silver bullets and it doesn’t pretend to be complete or be ...
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Programming Like Kent Beck

Three of us, namely Stig, Krzysztof, and Jakub, have had the pleasure of spending a week with Kent Beck during Iterate Code Camp 2012, working together on a project and learning programming ...
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Twitter REST API from Scala and Java using signpost

If you’ve read some other articles on this blog you might know that I like creating visualizations of various datasets. I’ve just started a small project where I want to ...
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Java Hidden code

Sometime ago I came across the issue of invisible characters in Strings. These can really cause confusion because they are invisible. String a = "Hello\u200e"; String b = ...
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