_Event-Sourcing Example App_

Join me in 1 hour (18:00 UTC) as I continue work on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries, but with #TDD.

https://jitterted.stream

Source code is at https://github.com/jitterted/jitterticket-event-sourced

_Event-Sourcing Example App_

I've been having a lot of fun working on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries.

Join me at 18:00 UTC today, at https://jitterted.stream. Repo is https://github.com/jitterted/jitterticket-event-sourced

_Event-Sourcing Example App_

I've been having a lot of fun working on JitterTix, an example app demonstrating how to do #EventSourcing in #Java (and #SpringBoot) without ES libraries.

Join me at 18:00 UTC Wed & Thur, at https://jitterted.stream. Repo is https://github.com/jitterted/jitterticket-event-sourced

Big Kotlin pack https://leanpub.com/b/kotlin_mm by Marcin Moskała is the featured bundle of ebooks 📚 on the Leanpub homepage! https://leanpub.com #Kotlin #Android #Java #ComputerProgramming #Engineering #books #ebooks

#Java 24, avoid import #tariffs like a pro with #JEP 458, 476 and 477…

https://openjdk.org/jeps/458
https://openjdk.org/jeps/476
https://openjdk.org/jeps/477

Alt...

A screenshot of a Java program that uses the Neo4j JDBC driver to read records from a database, 3 panes, left to right: * On the class path, listing individual imports * On the module path, using preview feature module import declaration (JEP 476), omitting individual imports * On the module path, as implicit declared class, omitting the the java.base import (there by default), and java.sql (required by neo4j jdby anyway)

_JitterTix Event-Sourcing Example_

This week I'll continue working on my JitterTix, an example app for demonstrating how to do #EventSourcing in #Java without any ES libraries.

Join me at 18:00 UTC Mon-Thurs, at https://jitterted.stream. The repo is https://github.com/jitterted/jitterticket-event-sourced

If Java had true garbage collection, most programs would delete themselves upon execution.

— Robert Sewell

#java #languages

1. Example code for my "TDDing Event-Sourcing" talk (hope it gets accepted at some future conferences!)

2. A platform for experimenting with different ways of implementing event-sourcing in #Java (w/o libraries)

3. Folks in my community asked for an example! (❤️ my community)

_JitterTix Concert Ticketing System_

On my #Java live coding stream this week I've been working on a simple concert event ticketing system that is based on #EventSourcing. I have several reasons I've been doing this (putting my #TDD Game on hold).

People: “Don't use #Lombok’s (At)Data on entities! equals(…) and hashCode() will be wrong!” (For the record: I agree.)

Also people: “Here's how you use #Java records to implement entities.”

🤷‍♂️

Gerade nach einer Diskussion getestet: Wenn man ChatGPT nach einer JPA Entity mit Lombok Support fragt, erzeugt es exakt die Code-Konstellation vor der alle Blogs zu dem Thema warnen – eine @Data Annotation an der Entity. Damit ist es ungefähr so gut wie Junior Developer die kein Google benutzen.

#java #chatgpt #lombok

Alt...

import lombok.Data; import lombok.NoArgsConstructor; import javax.persistence.*; import java.util.List; @Entity @Table(name = "person") @Data // Lombok generiert Getter, Setter, toString, equals und hashCode @NoArgsConstructor // NoArgsConstructor für JPA (Standardkonstruktor) public class Person { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "id") private Long id;