The object is not in charge any more. Spring XML configuration mechanisms is a perfect example of terrible design. Published at DZone with permission of Yegor Bugayenko. RetryOnFailure Here is an example from my own library: You may say that we don't need to see it since it's supplementary. We can only instantiate them.
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Join asppects DZone community and get the full member experience. First, you attach the XmlElement annotation to the getter:. A much better design would look like this instead of annotations: Moreover, I've made a few open source libraries which use annotations heavily. Azpects because we don't want to duplicate the same code over and over again, right? The object is not solid any more, since its behavior is not defined entirely by its own methods — some of its functionality stays elsewhere.
Java Annotations Are a Big Mistake
Over a million developers have joined DZone. Spring XML configuration mechanisms is a perfect example of terrible design.
The injection will do it. The bottom line is that annotations are bad. I was excited too.
Index of /maven/content/groups/public/com/jcabi/jcabi-aspects/0.22/
How Do Annotations Work in Java? Dependency Injection Containers are Code Polluters. Instead, this is how jcaib should have been done. Inject Say we annotate a property with Inject: I regret that I didn't understand it two years ago, when I started to work with jcabi-aspects. Is the code longer? So why is Yegor Bugayenko saying they are a big mistake?
There should not be any "configurations" in OOP. Java Annotations Are a Big Mistake. What is important is that the functionality always stays where it belongs — inside the object. Opinions expressed by DZone contributors are their own.
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aspectd DZone 's Guide to. The object is not in charge any more. We must see how our objects are composed. Annotations were introduced in Java 6 inand we all got excited. For example, XML configurations.
Long story short, there is one big problem with annotations — they encourage us to implement object functionality outside of an object, which is against the very principle of encapsulation. Only the object knows how to print itself to the XML.
However, I'm not excited any more. We can only instantiate them. The class Books has no idea how and who will inject an instance of class DB aslects it. I've said it many times before.
Published at DZone with permission of Yegor Bugayenko.
Check this post, it explains what is wrong about ORM: This is very wrong.
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