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Java 9: Building Robust Modular Applications
book

Java 9: Building Robust Modular Applications

by Dr. Edward Lavieri, Peter Verhas, Jason Lee
April 2018
Intermediate to advanced content levelIntermediate to advanced
910 pages
33h 21m
English
Packt Publishing
Content preview from Java 9: Building Robust Modular Applications

Annotations pipeline 2.0 [JEP 217]

Java annotations refer to a special kind of metadata that resides inside your Java source code files. They are not stripped by javac, so that they can remain available to the JVM at runtime.

Annotations look similar to JavaDocs references because they start with the @ symbol. There are three types of annotations. Let's examine each:

  • The most basic form of annotation is a marker annotation. These are standalone annotations with the only component being the name of the animation. Here is an example:
        @thisIsAMarkerAnnotation        public double computeSometing(double x, double y)         {          // do something and return a double        }
  • The second type of annotation is one that contains a single value, or piece of data. As you ...
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Publisher Resources

ISBN: 9781788832823Supplemental ContentOtherPurchase LinkErrata Page