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 89. Utilizar libremente anotaciones de identidad personalizadas
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Mark Richards
Las anotaciones en Java son fáciles de escribir, fáciles de usar y muy potentes; al menos, algunas lo son. Tradicionalmente, las anotaciones en Java han proporcionado una forma cómoda de implementar la programación orientada a aspectos (AOP) de , una técnica que pretende separar los problemas de comportamiento comunes inyectando comportamiento en puntos específicos del código. Sin embargo, la mayoría de los desarrolladores han abandonado en gran medida la AOP debido a efectos secundarios indeseables, así como al deseo de tener todo el código en un solo lugar: el archivo de clase.
Las anotaciones de identidad son totalmente diferentes, ya que no contienen ninguna funcionalidad. En su lugar, sólo proporcionan información programática que puede utilizarse para gobernar, analizar o documentar algún aspecto del código o la arquitectura. Puedes utilizar las anotaciones de identidad para identificar los límites de una transacción o un dominio o subdominio, describir una taxonomía de servicios, denotar el código de un marco de trabajo y emplearlas en docenas de otros casos de uso.
Por ejemplo, identificar las clases que forman parte del marco subyacente de (o el código de plantilla en ...
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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.