sagan VS Spring Data JPA

Empeza con esto https://spring.io/

If you want to do web apps, I'd recommend Django (a python framework) https://docs.djangoproject.com/en/4.1/, but you can do Rails, or Phoenix, or Spring Boot, or whatever. It doesn't terribly matter *which* one you do, as they share characteristics, and, chances are, your company will be using a different one :). Just pick one and go. You can do it. You know a lot more than you think.

With the idea planted, and already internalized that I would use spring-boot to create our API, I needed to decide on which engine it would be built. I had been studying Unreal Engine for some time, but because I had more know-how in Unity and because I found this AMAZING weather system, I opted for our last alternative.

This is an introduction article on how to build a RESTful application in Kotlin using Spring Boot 3 and MongoDB Atlas.

As said in the title, we will focus on the dependency inversion principle and one of its application : dependency injection. For production-ready applications, it would be better to rely on a framework and not implement its own container. For it, the java ecosystem have 3 frameworks available : Spring, Guice and Dagger.

Im stuck between just starting up a project, or if following some starter project for learning. I did a tutorial on the spring.io website, but thats about all I have done so far.

I've been following the guides at spring.io, but there's just so many guides there. My company has a template for starting new projects (includes frontend + backend + database) so I decided to start my project using it, thinking the basic guides I followed on REST APIs would help me but I quickly realized it's more complicated than I thought.

Thanks for the advice. I followed some guides on spring.io, but because I am using a template for starting new projects provided by my company, I found most of them couldn't really translate properly to the template.

Spring makes building web applications fast and hassle-free (spring.io). By removing much of the boilerplate code and configuration associated with web development, you get a modern web programming model that streamlines the development of server-side HTML applications, REST APIs, and bidirectional, event-based systems.

Please note: The H2 database was chosen for simplicity. You can replace it with any other database technology and use the Spring Boot JPA to connect. The demo application will still work.

What you are trying to do is not supported in JPA/JPQL or Spring Data (see here) Not even all databases support that syntax as far as I'm aware. You either need to concat the columns or add functionality to do this yourself, perhaps a Hibernate UserType will work.

There was also a discussion in the Spring Data JPA project repo surrounding the documentation as well: https://github.com/spring-projects/spring-data-jpa/issues/2055

There is a small typo on the second issue, I have tried opening a PR myself to fix it https://github.com/spring-projects/spring-data-jpa/pull/2869. I hope i haven't messed up something lol.

data-jpa: Spring Data JPA, makes it easy to create JPA-based repositories

This repository is an example application for the Spring Boot framework that employs the Netflix DGS framework to expose a GraphQL API and that interacts with a PostgreSQL DBMS via Spring Data JPA.

I'm using Spring Data JPA as a persistence framework. Therefore, those classes are Hibernate entities.

By two different former developers, one from QueryDSL and the other RSQL JPA Spec (Criteria API), both mention that it is a Java issue mentioned here (since 2015...): https://github.com/spring-projects/spring-data-jpa/issues/1115

If you go with hibernate note that there are a few different ways to use it. It can be used standalone and it can be used as a JPA implementation. If you use Spring and use hibernate as a JPA implementation then a popular Spring data layer abstraction is Spring Data which has JPA support with its Spring Data JPA library (https://spring.io/projects/spring-data-jpa)