October 2024
Intermediate to advanced
270 pages
8h 13m
Spanish
Content preview from 97 cosas que todo programador Java debe saber
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Capítulo 52. Aprende a amar tu código heredado
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Uberto Barbini
¿Qué es un sistema heredado? Es un software antiguo muy difícil de mantener, ampliar y mejorar. Por otra parte, también es un sistema que funciona y está al servicio de la empresa; de lo contrario, no habría sobrevivido.
Quizá, cuando se creó por primera vez, un sistema heredado tenía un diseño excelente, un diseño tan bueno que la gente empezó a decir: "Vale, quizá podamos utilizarlo también para esto, y esto, y esto". Se sobrecarga de deuda técnica, pero sigue funcionando. Estos sistemas pueden ser asombrosamente resistentes.
Aun así, los desarrolladores odian trabajar en sistemas heredados. Puede parecer que hay más deuda técnica de la que nadie podría pagar. Quizá deberíamos declararnos en quiebra y seguir adelante. Mucho más fácil.
¿Y si realmente tienes que mantenerlo? ¿Qué haces cuando tienes que corregir un error?
Solución número uno: cinta adhesiva. Tápate la nariz, arregla el defecto: "Vale, puede que nos arrepintamos de esto algún día, pero hagamos este copia-pega ahora, sólo para arreglarlo". A partir de ahí sólo empeorará. Como en un edificio abandonado, puede permanecer sin daños durante mucho tiempo, pero en cuanto haya una sola ventana rota, pronto se quedará sin ventanas intactas. El ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.