Couchbase through Examples with Spring Boot

You might not yet be familiar with Couchbase. It's a distributed JSON database with an integrated caching layer. It features a variety of services allowing developers to choose, to make their own trade-off, for different use cases like Key/Value, Cache, Document, SQL, Fulltext search, Analytics, Eventing, Data synchronization and more. All in one box. It's more of a Data Platform than a Database. In this presentation, we will offer a tour of Couchbase’s features by building an application using Spring, Liquibase and testcontainer.

About Laurent Doguin

Laurent is a nerdy metalhead who lives in Paris. He mostly writes code in Java and structured text in AsciiDoc, and often talks about data, reactive programming and other buzzwordy stuff. He is also a former Developer Advocate for Clever Cloud and Nuxeo where he devoted his time and expertise to helping those communities grow bigger and stronger. He now runs Developer Relations at Couchbase.

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Primeros pasos con Kotlin

En esta sesión, de la mano de Juan José Aguililla, vamos a poner la vista en uno de esos lenguajes de la JVM que lleva un tiempo subiendo en popularidad gracias a su potencia, su mayor concisión en la sintáxis y su facilidad de aprendizaje.
Y esperamos que esta sea la primera de una nueva serie de charlas sobre Kotlin.

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Tipos Algebraicos en Java 21

Java poco a poco ha ido adoptando patrones funcionales en sus diferentes versiones. En el caso de los tipos algebraicos (ADT) lo ha hecho poco a poco, casi en silencio, sin darlo ningún tipo de bombo. Primero fueron los los records, después los sealed class /interface para dar finalmente un soporte completo en Java 21 añadiendo Pattern Matching y el Record Pattern. En la charla explicaremos de manera breve que son los tipos algebraicos, como Java los soporta y los posibles usos, como la creación de DSLs (Domain Specific Language), estructuras de datos inmutables como listas, o codificación de efectos de lado como Optionals, o Try.

Sobre Miguel Rafael Esteban

Miguel Rafael Esteban Lleva más de 20 años trabajando como desarrollador y arquitecto de software en diferentes empresas, lenguajes de programación y plataformas. Una de esas personas que es habitual asistente en los meetups de MadridJUG, con un particular interés y experiencia en la programación funcional.

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Let Groovy operate your k8s cluster

Did you know you can create an operator for your cluster using Groovy? seriously, you can use it.
Like many of you, I’m a software developer who deploys into a cluster my applications, create services, configmaps, etc.... but I always thought that creating an operator to automatize my tasks was reserved for Go people.
When I realized that you can also use Groovy, I created SwaggerOperator, a Kubernetes operator in Groovy to maintain the OpenApi definitions of my services.
In this talk, I'll show you step-by-step how to create and deploy an operator from scratch using a real use case ... all using our favorite language, Groovy.

About Jorge Aguilera

Software developer in Groovy and Java for a long time in different environments, such as cash machines, bioinformatics environments or Fintech applications
As I am passionate about Open Source, I like to share my knowledge by giving talks, mainly in the Madrid Groovy User Group, and publishing tech posts on my blog.

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Novedades Java 21

¡Java 21 ya está aquí! y vamos a celebrarlo y revisar lo que trae esta nueva versión de nuestro lenguaje y plataforma favoritos. Y lo haremos coincidiendo con la misma fecha de la release.
En esta ocasión, como ya anunciamos antes del verano, tendremos una charla un poco distinta, algo un poco más coral en la que varios de nosotros podremos explicar las distintas funcionalidades que trae esta nueva versión.
No solo la charla, después de la sesión, durante el networking, podremos compartir experiencias, comentar qué esperamos que nos aporte esta nueva versión o cuál es la funcionalidad que crees que supondrá un verdadero cambio en tu forma de programar.
¡Vente! ¡Te esperamos!

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Developer Productivity Engineering: What's in it for me?

It may surprise you to learn that we developers are a patient, tolerant species. People pay us to do what we enjoy - write code and create working applications. In return, we will put up with all sorts of blockages and toil that get in the way of this - long build times, flaky tests, hard-to-debug toolchain failures and so on.

Is this truly the price we need to pay? Could there be a better world, where the build is as fast as it could possibly be? A world where problems that affect many developers are quickly identified and fixed?

Welcome to the world of Developer Productivity Engineering, where we can get computers to do what they’re good at (automation) to make developers’ lives easier, and make us more effective at our jobs. And while developer joy may be a difficult thing to sell to decision-makers, effective developers who are making the best use of their time, and their hardware, have a direct impact on an organization’s ROI.

In this talk, Trisha will explore what DPE is, give you some practical ways to get started, and discuss ways to help the leaders in your organisation to understand the enormous value DPE could unlock.

About Trisha

Trisha is a software engineer, Java Champion and author. Trisha has developed Java applications for a range of industries of all sizes, including finance, manufacturing and non-profit, and she's a lead developer advocate at Gradle. She has expertise in Java high-performance systems and dabbles with Open Source development.

Trisha’s exceptionally passionate about sharing things that help real developers. That might be: getting them up to speed on the latest version of Java; teaching them tips and tricks to improve their productivity; or promoting healthy technical communities across the globe. Trisha values helping all developers level up their career and skills at every step of their journey.

Read more from Trisha in the books “Head First Java”, “Getting to Know IntelliJ IDEA”, “97 Things Every Java Developer Should Know” and “What to Look for in a Code Review”.

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Mejorando nuestras aserciones sobre el dominio con AssertJ

¿Alguna vez has leído un test y has pensado que era muy complejo de entender lo que estabas aseverando? A mi sí, y por eso, tras investigar un poco, creo haber dado con la clave que me ayuda a que mis tests hablen el mismo idioma que mi código y cuenten las mismas historias. Durante esta charla, veremos qué herramientas nos provee AssertJ para facilitar la comprensión de los tests y que nuestros tests no sólo comprueben datos.

Jorge Aguiar Martín

Desarrollador de software en Lean Mind, músico en la banda del pueblo y amante de los animales. Me apasiona la artesanía del software y buenas prácticas, así como serverless y las arquitecturas orientadas a eventos. También co-organizo el meetup de Agile & Craftsmanship Canarias para devolver a la comunidad lo que me ha dado a mi.

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