This Week in Spring - March 22nd, 2016

Engineering | Josh Long | March 22, 2016 | ...

Welcome to another installation of This Week in Spring! As usual, we've got a lot to cover so let's get to it! This week I'm supposed to be in Paris and Belgium. Unfortunately, because of the recent, tragic, disgusting and cowardly attacks on the Brussels airport and metro, I am not entirely sure about whether I'll be in Belgium physically. Tonight's meetup talk, however, will carry on remotely, via streaming. Stay tuned to my Twitter handle - @starbuxman for more.

That said, there's a lot of great content so let's get to it!

A Geospatial Messenger with Kotlin, Spring Boot and PostgreSQL

Engineering | Sébastien Deleuze | March 20, 2016 | ...

Following my first Kotlin blog post, today I want introduce the new Spring Boot + Kotlin application I have developed for my upcoming Spring I/O 2016 conference talk "Developing Geospatial Web Services with Kotlin and Spring Boot".

Dealing with native database functionalities

One of the goal of this application is to see how to take advantage of native database functionalities like we do in NoSQL world. Here we want to use Geospatial support provided by PostGIS, the spatial database extender for PostgreSQL. Native JSON support could also be a good use case.

This Geospatial Messenger sample application is available on GitHub

This Week in Spring - March 15th, 2016

Engineering | Josh Long | March 15, 2016 | ...

Welcome to another installment of This Week in Spring! What a crazy week it's been since we last talked! I spent a day in San Francisco, Germany, Scotland, and Romania between Monday and Friday last. It's nice this week to be in (warm!) southern California in Los Angeles and San Diego speaking to customers and at a couple of meetups! If you're around, I hope you'll join me for the Cloud Native Meetup here in Los Angeles (tonight!).

Spring for Apache Kafka Milestone 1 Available

Engineering | Gary Russell | March 14, 2016 | ...

I am pleased to announce that the spring-kafka (Spring for Apache Kafka) first milestone is now available (1.0.0.M1).

The existing spring-integration-kafka extension project - currently at version 1.3.0.RELEASE supports Kafka 0.8.x.x and is used in Spring XD (Kafka MessageBus) and Spring Cloud Stream (Kafka Binder).

This new project (spring-kafka) breaks out the core components into a separate project. It is based on the new 0.9.0.x pure Java Kafka clients.

spring-kafka brings the familiar Spring programming model to Apache Kafka for any Spring user, not just those using Spring Integration. An upcoming spring-integration-kafka release will be a complete rewrite, utilizing the spring-kafka

This Week in Spring - March 8th, 2016

Engineering | Josh Long | March 08, 2016 | ...

Welcome to another installment of This Week in Spring! This week I'm in Bruhl, Germany for the amazing JavaLand show, then it's off to Scotland to visit a large customer, and then it's off to Romania for Voxxed Days Bucharest. If you're in any of those places, I'd love to connect!

Core container refinements in Spring Framework 4.3

Engineering | Stéphane Nicoll | March 04, 2016 | ...

Spring Framework 4.3.RC1 is around the corner and brings nice core container refinements which we are going to explore in this post...

Implicit constructor injection for single-constructor scenarios

Consider the following service class:

@Service
public class FooService {

    private final FooRepository repository;

    @Autowired
    public FooService(FooRepository repository) {
        this.repository = repository
    }
}

Quite a common use case but if you forget the @Autowired annotation on the constructor, the container will throw an exception looking for a default constructor, unless you explicitly indicate autowire mode 'constructor' in your bean definition setup (e.g. in an XML <bean>

This Week in Spring - March 1, 2016

Engineering | Josh Long | March 01, 2016 | ...

Welcome to another installment of This Week in Spring! This week, I'm in Shenzhen, China and Zurich, Switzerland for Voxxed Days Zurich. It's going to be a busy week indeed though I sure hope to see you there! Anyway, we've got a lot to cover this week so let's get to it!

This Week in Spring - February 23, 2016

Engineering | Josh Long | February 23, 2016 | ...

Welcome to another installment of This Week in Spring! We're already staring down the last weeks of February!

Spring AMQP 1.6.0 Milestone 1 (and 1.5.4) Available

Engineering | Gary Russell | February 16, 2016 | ...

We are pleased to announce the availability of the first milestone of the 1.6 version of Spring AMQP.

Some highlights of this release:

  • A new jar spring-rabbit-test containing a test harness to help with testing @RabbitListener methods; see the testing chapter.

  • Multiple @RabbitListener annotations on a method (when using Java 8) and the @RabbitListeners annotation (for pre-Java 8), each allowing the same method to be the listener method for multiple listener containers.

  • Full support for the Delayed Message Exchange RabbitMQ plugin.

  • An AsyncRabbitTemplate returning ListenableFuture<?> for request/reply messaging.

  • An option to publish ApplicationEvents when listener containers go idle.

This Week in Spring - February 16th, 2016

Engineering | Josh Long | February 16, 2016 | ...

Welcome to another installment of This Week in Spring! It's been a busy week for all of us on the Spring team, as you're about to see! I've just finished my presentation at the epic DevNexus show and now I'm off to visit customers in Hartford and Los Angeles before making my way to the epic ConFoo conference in Montreal, Canada. If you're in the area, be sure to ping me and say hi!

We've got a lot to cover, so let's get to it!

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