Recorded at SpringOne2GX 2014.

Speaker: Cedric Champeau

More Groovy Track

Slides: http://www.slideshare.net/SpringCentral/groovy-android-41263570

For 10 years, Groovy has dramatically improved the productivity of Java developers on the desktop. With unique like closures, builders, AST transformations, traits, optional static compilation and many more, Groovy turned out to be a very competitive language on the JVM. Compared to other JVM languages, Groovy has the major advantage of being totally Java-friendly, both in terms of syntax and interperability. But during those years, what happened on the mobile world? In particular, Android developers are used to develop applications in Java, so why Groovy, a JVM language, wouldn't be usable for Android development too? Can we ease the pain of Android developers too?

Recorded at SpringOne2GX 2014.

Speaker: Jeff Beck

Essential Grails Track

Slides: http://www.slideshare.net/SpringCentral/experiences-using-grails-in-a-microservice-architecture-spring-one2gx2014-41177964

For some web applications it does not make sense to have 1 monolithing process which handles all of the requirements of the application. More and more often Grails is showing up in microservice architectures where instead of building 1 monolithing web application which is responsible for all of the pieces of the application puzzle, microservice applications are being assembled which collectively solve the requirements of the larger application. Grails is very well suited for this type of architecture. A microservice based architecture can result in applications which are easier to build, easier to test, easier to extend and are easier to adapt to changing business requirements.

Welcome to another installment of This Week in Spring! I hope your holiday and new year was awesome! It's the beginning of a new year (I almost typed "2014"!), and we've got a lot of great stuff coming this year! Let's see what the internet has been doing this last week in the Spring community.

• Our friend Petri Kainulainen is back, and he's completely revamped his Spring Data JPA CRUD tutorial! Check it out! We've linked to it before in this roundup, but it's always worth re-reading!
• I really like this post that looks at introducing multitenancy into an application in terms of a JHipster-based sample.
• Inforworld has an interesting post, Why 2015 will be the year of the micro service
• Our pals in Spain are putting on their Spring IO (the conference) conference again this year! It's…

Dear Spring community,

It's my pleasure to announce that Spring Framework 4.1.4, 4.0.9 and 3.2.13 have been released just in time for New Year's Eve! These maintenance releases fix various minor issues and provide several minor improvements as well; please see JIRA for details.

Note that 4.0.9 is conceived as the last release in the 4.0.x line, concluding twelve months of active 4.0.x maintenance. We strongly recommend an upgrade to 4.1.x; your next maintenance release after 4.0.9 will be 4.1.5 which you need to be prepared to upgrade to.

Furthermore, please note that the 3.2.x line - and…

Welcome to another installment of This Week in Spring! This week, as is our tradition, we'll look back at a few of the big things that made 2014 a wonderful year to be a Spring developer. And, what a year it was!

• The tail end of last year saw Spring 4 GA and this year saw the Spring 4.1 release just shy of 9 short months after 4.0! Spring 4.x boasts a dizzying array of new features! Java 8 support, Java EE 7 support, new Spring MVC views, JSR 107 support, a powerful resource pipeline and the @Conditional annotation which of course made possible...
• Spring Boot, whose first 1.0 GA was in April of this year, has seen two epic updates (1.1, and 1.2) since then. Spring Boot's taken the community by storm, spawning all sorts of activity both from our team and, more importantly, from everybody else! The competition have attempted to downplay it, or copy it. Existing Spring users have flocked to it in droves (including the likes of Netflix and Ticketmaster). If you follow this weekly roundup, though, then you need no further evidence of the community's uptake! It's been so much fun watching people blog…

On behalf of the Spring XD team, I am very pleased to announce the second milestone release of Spring XD 1.1 and the 1.0.3 maintenance release.

Download Links:

• 1.1.0.M2 RELEASE: zip, 1.0.3.RELEASE: zip

The 1.1 M2 release includes bug fixes and enhancements as well as several new features:

• Kafka based Message Bus. If Kafka is your middleware du jour, you will feel right at home.
• Batching and compression support for RabbitMQ provides significantly increased effective message rate throughput.
• Develop Processor modules using Project Reactor’s Stream API. The Stream API is based on the Reactive Streams specification that provides a standard for asynchronous stream processing with non-blocking backpressure. This allows you to use a functional programming model as the basis for processing event streams. Combined with XD’s support for Data Partitioning on the Message Bus…

Another cheerful holiday message from the Spring team: Spring Cloud 1.0.0.RC1 is now available in the http://repo.spring.io Maven repository. There are plenty of new features including

• Support for Hystrix metrics aggregation via an annotation @EnableTurbine and @EnableTurbineAmqp (for an AMQP-based collector)

• A rehaul of the Ribbon configuration making it more friendly for Spring users. You can now configure each Ribbon client in its own ApplicationContext using @RibbonClient and override various bits, like the LoadBalancer, or the ServerListFilter, by providing @Bean definitions.

• DiscoveryHealthIndicator is now a composite that users can add information to by declaring @Beans of type DiscoveryHealthIndicator.

• Discovery is now abstracted away from Eureka into a new spring-cloud-commons library, and enabled via new annotations like @EnableDiscoveryClient (instead of the old @EnableEurekaClient). The same pattern also applies to circuit breakers

  …

We are pleased to announce the third milestone release of Spring for Apache Hadoop 2.1. The release is now available in the Spring IO repository

We have worked on improving the YARN and data store writers. There are also new @Configuration changes and improvements to the Boot auto configuration features. See the full changelog for more details.

Beginning with the Spring for Apache Hadoop 2.1 version, we now only support Hadoop 2.0 APIs and no longer provide backwards compatibility with older Hadoop v1 distributions. If you need support for older Hadoop versions please use the 2.0.4 or 1.1.…

Welcome to another installment of This Week in Spring! In a few short weeks we'll be in 2015! Will that be exciting? Of course. But this week's pretty exciting as well! So much good stuff this week.

• Spring Boot 1.2.0 is here! So many new features for Java EE (Servlet 3.1-baseline, JTA, JMS and JNDI support) and improved Jackson output, Actuator endpoints, CLI updates and performance. Spring Cloud is already tracking 1.2 and will be based on this soon, as well. Get the bits.

• Spring Boot 1.1.10 is now available with numerous fixes.

• Resident mad-scientist Andy Wilkinson just announced the latest cut of the Spring IO platform library. There are lots of things of note, but in particular it's added support for Spring Integration Flow 1.0, Spring Integration Java DSL 1.0, and Spring Integration Splunk 1.1 and updated revisions for several projects besides.

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