Spring XD – Tackling Big Data Complexity

Amazon Alexa: Custom-Skill vs. Smart-Home-Skill

Alexa, der Voice-Control-Service von Amazon, dürfte inzwischen zumindest aus Anwendersicht bekannt sein. Dass es sehr unterschiedliche Arten von Skills gibt, ist dagegen vielleicht nicht so bekannt. Dieser Artikel beschreibt die Learnings eines Entwicklers...

• Voice UI

16.2.2022 | 6 Minuten Lesezeit

Buchrezension: Einfach Programmieren für Kinder

Ich liebe meinen Job, und ein nicht unwichtiger Teil meiner täglichen Arbeit ist das Programmieren. Programmieren ist toll, es ist kreativ-schöpferisch und zugleich logisch-problemlösend. Immer führen viele Wege zum Ziel, und das Ziel selbst wird dabei...

4.10.2017 | 3 Minuten Lesezeit

Continuous Delivery Patterns: Building your application inside a Docker...

Let me be clear: This post is not about building a Docker container for your application – it is about building your application inside a container specially designed for exactly doing that – building your application – and nothing else. It helped us...

• Container
• CI/CD

16.11.2016 | 3 Minuten Lesezeit

Contract Testing: Testen in einem Deploy-To-Production-Whenever-You-Want...

Continuous Deployment ist bisher nur in sehr wenigen Unternehmen angekommen. Die Regel sind immer noch eine Handvoll Releases im Jahr, die in einer mehrwöchigen manuellen Testphase getestet werden. Releases von verschiedenen Anwendungen werden gebündelt...

5.9.2016 | 5 Minuten Lesezeit

IT-Mitarbeiter und die Command & Control Architektur

Prämisse Die IT wird in der Zukunft noch wichtiger, als sie jetzt schon ist. Geschäftsprozesse werden immer digitaler, neue rein digitale Geschäftsprozesse kommen hinzu. Outsourcing im großen Stil ist gescheitert. Weil die IT immer näher ans Kerngesch...

10.8.2016 | 5 Minuten Lesezeit

Event Driven Microservices with Spring Cloud Stream

Lately I’ve been much into event driven architectures because I believe it’s the best approach for microservices, allowing for much more decoupled services than point-to-point communication. There are two main approaches for event driven communication...

4.4.2016 | 5 Minuten Lesezeit

BizDevOps

BizDevOps beschreibt eine Organisationsform, in der die Personen, die eine Anwendung schreiben, betreiben, die fachlichen Anforderungen erstellen und das zugehörige Geschäftsmodell weiterentwickeln, in einem agilen Team zusammengefasst sind. Dabei hat...

15.2.2016 | 5 Minuten Lesezeit

Microservices und ESBs

Ein zentraler Enterprise Service Bus ist dafür zuständig, die Kommunikation zwischen Systemen innerhalb eines Unternehmens zu übernehmen. Dabei übernimmt der ESB Routing-, Transformations- und Mapping-Funktionalität und bietet in der Regel eine Fülle...

21.1.2016 | 2 Minuten Lesezeit

Microservices und Legacy-Systeme / Standardsoftware

Eine Microservices-Architektur entsteht selten auf der grünen Wiese. Wie geht man also mit Schnittstellen zu Legacy-Systemen um? Und neben Legacy-Systemen gibt es ja auch noch Standardsoftware, denn manchmal macht es einfach keinen Sinn, etwas selbst...

11.1.2016 | 2 Minuten Lesezeit

Kommunikation von Microservices – Die vier Ebenen der Entkopplung

Wenn man einführende Artikel zum Thema Microservices liest, so heißt es meist lapidar, dass Microservices über REST oder Messaging kommunizieren können (sollten). Die Frage, welche Kommunikation wann sinnvoll ist, wird meist zunächst nicht beantwortet...

9.11.2015 | 4 Minuten Lesezeit

Wer Microservices richtig macht, braucht keine Workflow Engine und kein...

Bernd Rücker und Daniel Meyer schreiben im Fazit von „Wie lässt sich Ordnung in einen Haufen (Micro)Services bringen“ , dass gerade in einer Microservices-Architektur eine Workflow-Engine und BPMN einen festen Platz haben sollten. Das ist eine pauschale...

31.8.2015 | 10 Minuten Lesezeit

Was man vom Microservice-Hype (mindestens) mitnehmen sollte

Gerade in den letzten Wochen wird wieder intensiver über Microservices diskutiert, insbesondere nachdem Martin Fowler seinen „Monolith First“-Ansatz veröffentlichte und sich viele Kritiker des Microservices-Ansatz bestätigt fühlten. Stefan Tilkov hat...

• Softwarearchitektur
• Microservices

12.7.2015 | 6 Minuten Lesezeit

Kaffeeküchengespräche – Microservices und Domain Driven Design

Neulich in der Kaffeeküche im Gespräch mit einem Kollegen, der gerade von einem zweijährigen Sabbatical im Dschungel Brasiliens zurückgekehrt ist. Wenn man sich so die aktuellen Programme der Konferenzen ansieht, dann scheint dieses Microservices-Ding...

7.6.2015 | 9 Minuten Lesezeit

Bounded Contexts and data duplication in action: adding a shop system ...

It seems that ‘Bounded Context’ (from Eric Evans’ Domain Driven Design) has become one of the terms that have to be included in every microservices talk (along ‘Conway’s Law’, of course). And in fact, it’s an important concept, and although not really...

26.4.2015 | 6 Minuten Lesezeit

Self-Contained Systems and ROCA: A complete example using Spring Boot,...

This post is about architectural concepts for web applications – self-contained systems (SCS) and resource-oriented client architecture (ROCA) – and their implementation with Spring Boot, Spring MVC, Spring Security, Thymeleaf, Bootstrap, jQuery, nginx...

12.1.2015 | 17 Minuten Lesezeit

Enterprise Java Batch: Challenges and solutions

In the previous blog post we looked at a best practice architecture for Java Batch applications that is running successfully a lot. Still, we see challenges that affect productivity and costs, three of them are the following: MonolithsApplication serverMeta...

1.12.2014 | 3 Minuten Lesezeit

Enterprise Java Batch: A best practice architecture

More and more companies are doing their batch processing in Java these days – but how do you do it the right way? This is the start of a series on Enterprise Java Batch about how we think it should be done. Today we will start with some simple questions...

24.11.2014 | 4 Minuten Lesezeit

Boot your own infrastructure – Extending Spring Boot in five steps

Writing your own Spring Boot Starter can be a very reasonable thing to do – not every technology is covered by the provided starters, and maybe you have your own framework stuff you wanna boot automatically. We’ll take a look at the possible reasons ...

17.11.2014 | 7 Minuten Lesezeit

spring-boot-starter-batch-web 1.3.0 released

Java batch is becoming a hot topic in enterprise environments these days, but how do you do it the right way? The project spring-boot-starter-batch-web offers a best practice approach to modern batch architectures, answering the following questions:...

12.11.2014 | 4 Minuten Lesezeit

WJAX 2014 Best Practice Java Batch – Architektur, Probleme und Lösungen

Immer mehr Unternehmen setzen auf Batch-Verarbeitung in Java – nur wie macht man es richtig? Nach einer kurzen Einführung in den JSR-352 / Spring Batch stellen wir in diesem Vortrag die unserer Erfahrung nach optimale Architektur für Batch-Services im...

6.11.2014 | 1 Minuten Lesezeit

Writing JSR-352 style jobs with Spring Batch Part 2: Dependency injection

Spring Batch 3.0 supports writing and running batch jobs that comply with the JSR-352 specification, which is the standard for batch processing also included in JEE7. This article series focuses on three topics: configuration options using Spring Batch...

1.9.2014 | 5 Minuten Lesezeit

Writing JSR-352 style jobs with Spring Batch Part 1: Configuration options

Spring Batch 3.0 supports writing and running batch jobs that comply with the JSR-352 specification, which is the standard for batch processing also included in JEE7. This article series focuses on three topics: configuration options using Spring Batch...

25.8.2014 | 4 Minuten Lesezeit

spring-boot-starter-batch-web 1.2.0 released

Java batch is becoming a hot topic in enterprise environments these days, but how do you do it the right way? The project spring-boot-starter-batch-web offers a best practice approach to modern batch architectures, answering the following questions:...

18.8.2014 | 1 Minuten Lesezeit

JSR-352 – Ein Standard für die Batchentwicklung

Die Batchverarbeitung gehört zu den ältesten Verarbeitungsformen in der IT überhaupt, und doch gab es im Java-Bereich bisher keinen Standard dafür. Das hat sich nun mit dem finalen Release des Java Specification Requests 352 (Batch Applications for...

30.6.2014 | 1 Minuten Lesezeit

Sind Architekturteams in größeren Unternehmen überflüssig?

Jeder kennt sie, manchmal heißen sie Architekturteam, manchmal Framework-Team, manchmal Methoden und Verfahren. Jede größere Firma mit eigener IT und Software-Entwicklung hat sie. Neben anderen Aufgaben sind diese Teams häufig dafür verantwortlich, Code...

5.6.2014 | 3 Minuten Lesezeit

Five Spring features that I miss in the Java Enterprise Edition (JEE)

During the last years you could read a lot about the rise of the Java Enterprise Edition and the fall of Spring (a.k.a. Spring is the new legacy), only I don’t see it in real life’s work. For more than ten years I’ve been working on long time projects...

18.5.2014 | 4 Minuten Lesezeit

JAX 2014: Ein Standard für die Batch-Entwicklung – JSR-352

Mit dem JSR 352 wurde die Batch-Entwicklung im Java-Bereich standardisiert, und mit der Aufnahme in die Java Enterprise Edition 7 werden in Zukunft alle entsprechenden Application Server die Möglichkeit bieten, Batch-Jobs auszuführen. Diese Session von...

14.5.2014 | 1 Minuten Lesezeit

Enterprise-ready production-ready Java batch applications powered by Spring...

This post introduces a new project we set up – our own Spring Boot starter for Spring Batch: spring-boot-starter-batch-web . Spring Boot is the new kid on the Spring block helping you build Spring applications in a fast convention-over-configuration...

12.5.2014 | 4 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig, Spring-Data-Support und Co.

Dieser im Javamagazin 11/2013 erschienene Artikel beschreibt die Neuerungen in Spring Batch 2.2. Die zwei wichtigsten Neuerungen betreffen zwei starke Entwicklungen der letzten Jahre im Spring-Ökosystem, die jetzt auch in Spring Batch verfügbar sind...

4.5.2014 | 1 Minuten Lesezeit

Spring Batch: BatchStatus state transitions

Have you ever been wondering what it means that your job has ended in UNKNOWN state? Or why your job never seems to finish (state STARTED), although you restarted the server? This short blog post is about the different batch states and the transitions...

2.4.2014 | 2 Minuten Lesezeit

10 criteria for choosing the right implementation of the JSR-352 (Java...

As you might already know, the JSR-352 is the standardization effort for batch processing in Java. It has been released and included in JEE7 this year, which means that every JEE7 application server will have batch processing capabilities. As I pointed...

5.12.2013 | 4 Minuten Lesezeit

Batch processing and the Java Enterprise Edition (JSR-352, JEE7, Spring...

The JSR-352 (Batch Applications for the Java platform) has been released and included in JEE7 over half a year ago, so now I see conference talks and workshops popping up explaining it, and that’s a good thing, people need to know about it. Spring Batch...

28.11.2013 | 2 Minuten Lesezeit

Spring One Wrap-up: Spring Batch, Spring Hadoop and Spring XD

Here it comes, the second part of my Spring One wrap-up, this time not from sunny California but from rainy Germany. The first one was about Spring IO and Spring Boot, and it’ll be all about batch now. I’ll focus on three projects here, one of them ...

15.9.2013 | 5 Minuten Lesezeit

Spring One Wrap-up: Spring Boot and Spring IO

Today’s the last day of Spring One in Santa Clara, California, the biggest conference on the Spring eco system, and it’s time for a wrap-up. There have been a lot of sessions, and of course it’s not possible to cover them all. I’ll do two blog posts,...

11.9.2013 | 5 Minuten Lesezeit

Spring Batch and JSR-352 (Batch Applications for the Java Platform) – ...

JSR-352 is final and included in JEE7, the first implementation is available in Glassfish 4. JSR-352 takes over the programming model of Spring Batch almost 1-1, just take a look at the domain and component vocabulary: Spring BatchJSR-352CommentJobJobStepStepChunkChunkItemItemItemReader...

28.7.2013 | 7 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 6: Partitioning and Multi-threaded ...

Finally, last part of the blog series! Today we’ll have a quick look at scaled batch jobs, done via partitioning and multi-threaded step. This is the sixth post about the new Java based configuration features in Spring Batch 2.2. Previous posts are ...

7.7.2013 | 4 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 5: Modular configurations

When adding more jobs to an ApplicationContext, you will soon run into problems with the naming and the uniqueness of beans. Normally you define one configuration class or one configuration XML file for each job, and then it feels natural to name the...

29.6.2013 | 2 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 4: Job inheritance

One important feature in XML is the possibility to write abstract job definitions like these: Concrete job definitions may inherit parts of their definition from it: ... In enterprise environments...

22.6.2013 | 7 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 3: Profiles and environments

This is the third post about the new Java based configuration features in Spring Batch 2.2. In the first post I compared the two configuration styles on a non-trivial batch job reading from a file and writing to a database. I used a very simple infrastructure...

15.6.2013 | 3 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 2: JobParameters, ExecutionContext ...

This is the second post about the new Java based configuration features in Spring Batch 2.2. In the first post I compared the two configuration styles on a non-trivial batch job reading from a file and writing to a database. In the first version of...

8.6.2013 | 4 Minuten Lesezeit

Spring Batch 2.2 – JavaConfig Part 1: A comparison to XML

This is the first part of a series on Java based configuration in Spring Batch. Spring Batch 2.2 will be out in a few weeks (update: was released 6/6), and it will have a Java DSL for Spring Batch, including its own @Enable annotation. In Spring Core...

1.6.2013 | 10 Minuten Lesezeit

Monitoring Spring Batch with AppDynamics

When running Spring Batch in production it’s always good to keep an eye on performance. And in pre-production it’s helpful to have a tool that points to the weak spots. One option you have is to use Application Performance Management (APM) tools, and...

27.4.2013 | 4 Minuten Lesezeit

JAX 2013: Enterprise Java Batch mit Spring

Dennis Schulte und ich haben gestern auf der JAX 2013 in Mainz einen Vortrag mit dem Titel ‚Enterprise Java Batch mit Spring‘ gehalten. Der Vortrag teilt sich in drei Bereiche auf: Im ersten Teil geht es um Grundlagen im Bereich Spring Batch, während...

24.4.2013 | 1 Minuten Lesezeit

A real ROCA using Bootstrap, jQuery, Thymeleaf, Spring HATEOAS and Spring...

There’s now a newer post about the same topic at Self-Contained Systems and ROCA: A complete example using Spring Boot, Thymeleaf and Bootstrap . What is the best way to build a web application? I know, tough question, and in the end, there cannot be...

20.1.2013 | 6 Minuten Lesezeit

A RESTful learning curve: nouns, verbs, HATEOAS and ROCA

I really don’t claim to be a REST expert, but I learned a few things during the last months that I want to share with you. Some things might be trivial for people already working with REST a lot, good for you then, but I guess there are a lot people ...

25.11.2012 | 6 Minuten Lesezeit

Spring Dependency Injection Styles – Why I love Java based configuration

I must admit, when looking at Spring 3.0’s feature list for the first time I didn’t see one thing I wanted to use right away in my next project. There was the Spring Expression Language, the stereotype annotation model, there was some Spring MVC stuff...

21.7.2012 | 8 Minuten Lesezeit

Transactions in Spring Batch – Part 3: Skip and retry

This is the third post in a series about transactions in Spring Batch, you find the first one here , it’s about the basics, and the second one here , it’s about restart, cursor based reading and listeners. Today’s topics are skip and retry functionality...

29.3.2012 | 6 Minuten Lesezeit

Transactions in Spring Batch – Part 2: Restart, cursor based reading and...

This is the second post in a series about transactions in Spring Batch, you find the first one here , it’s about chunk based transaction handling, batch job vs. business data, a failed batch and transaction attributes, and the third one here , it’s about...

25.3.2012 | 6 Minuten Lesezeit

Transactions in Spring Batch – Part 1: The Basics

This is the first post in a series about transactions in Spring Batch, you find the second one here , it’s about restarting a batch, cursor based reading and listeners, and the third one here , it’s about skip and retry. Transactions are important in...

21.3.2012 | 6 Minuten Lesezeit

A business component architecture with Spring 3.0/3.1 – Part 3: Properties

This is the third post in a series describing a business component architecture using Spring 3.0/3.1 features like Java based configuration, the environment abstraction, bean definition profiles and property sources. After the general structure and ...

19.1.2012 | 9 Minuten Lesezeit

Eine Fachkomponentenarchitektur mit Spring 3.0/3.1 – Part Two: Ressourcen

Im ersten Blogpost dieser Reihe habe ich die Fachkomponentenarchitektur vorgestellt und beschrieben, welche Unterprojekte benötigt werden und welche Funktion sie haben. Für die Konfiguration greife ich dabei auf die Java-basierte Konfiguration von Spring...

6.1.2012 | 4 Minuten Lesezeit

A business component architecture with Spring 3.0/3.1 – Part 1: Structure

This is the first post in a series describing a business component architecture using Spring 3.0/3.1 features like Java based configuration, the environment abstraction, bean definition profiles and property sources. Check here for part two on resources...

• Software architecture
• Java
• Spring

29.12.2011 | 7 Minuten Lesezeit

SWT and Spring’s @Configurable – Dependency Injection for the UI

Given the following technology stack: – Java frontend with the Standard Web Toolkit (SWT), started via Java Web Start. – Spring Remoting as the interface to the backend. – Spring web application on a Tomcat as backend. The backend is standard Spring...

16.12.2011 | 5 Minuten Lesezeit

Google App Engine Persistence – Generic repositories with Objectify

Google’s App Engine is a platform as a service (PAAS) offered by Google. Any servlet-based web application can be deployed there with limitations due to the cloud character of the environment: Instances can be deployed and undeployed at any time. Instances...

10.10.2011 | 5 Minuten Lesezeit