- Kotlin for Enterprise Applications using Java EE
- Raghavendra Rao K
- 200字
- 2021-06-10 18:49:29
The all-open compiler plugin
When we define a class or declare a data member, it is final by default in Kotlin. We declare classes as final to make them non-extendable. Similarly, we make functions final so that they can't be overridden. Fields are declared as final to prevent the value from changing once it is initialized.
The Aspect-Oriented Programming (AOP) library and the Reflection API require classes to be non-final. These frameworks create proxy objects, so the classes and member variables have to be open and accessible.
The all-open compiler plugin makes sure Kotlin complies with the requirements of these libraries and frameworks when dealing with proxy objects. It makes classes and member variables that have specific annotations accessible to create proxy objects without explicitly specifying the open keyword in the code.
Let's take a look at an example of how we can use an all-open compiler plugin. When we are dealing with the CDI framework, we need classes that are annotated with specific annotations, such as @Inject or @Dependent, to make them open and accessible. Let's look at the all-open plugin support for both Maven and Gradle.
- 趣學Python算法100例
- Learning SQLite for iOS
- Mastering Linux Network Administration
- Learning Python Design Patterns
- Scientific Computing with Scala
- Node.js Design Patterns
- Learning iOS Security
- 深入實踐DDD:以DSL驅動復雜軟件開發(fā)
- Mastering ASP.NET Core 2.0
- Microsoft Dynamics GP 2013 Cookbook
- Python Penetration Testing Essentials
- C#程序開發(fā)參考手冊
- Illustrator CS6中文版應用教程(第二版)
- C/C++語言程序開發(fā)參考手冊
- 程序員超強大腦