In -depth discussion of the use scene of Apache Yetus Audience Annotations in the Java library

Apache Yetus Audience Annotations is an annotation library in the Apache Yetus project that can provide additional metadata information for the Java class and methods.It can be used to mark and specify the expected audience and applicable scenarios of specified Java classes or methods.The following is an in -depth discussion of the use scenario of Apache Yetus Audience Annotations. 1. The audience of the standard class and method: Using Apache Yetus Audience Annotations can specify the audience types for the class and methods, such as Public, LIMITEDPRIVATE, and Private.This can control the accessability of the code.For example, the class or method of the PUBLIC marked can be used by any caller, and the class or method of the Private label can only be called in the current class. @InterfaceAudience.Public public class ExampleClass { @InterfaceAudience.Public public void publicMethod() { // The realization of the public method } @InterfaceAudience.Private private void privateMethod() { // Realization of private methods } } In the above examples, the ExampleClass classes and the PublicMeththod () method are marked as Public, indicating that their expected audiences are public and can be used by all callers.The PrivateMethod () method is marked as Private, indicating that it can only be used inside the ExampleClass class. 2. Applicable scenario of the standard: In addition to the audience, Apache Yetus Audience Annotations can also be used for the appropriate scenario of specified class.Common scenarios include Client, Server and Test.By using appropriate scene marks, you can better organize and manage code.For example, you can determine its dependence and test strategies according to the scenario of the class. @InterfaceAudience.Public @InterfaceStability.Evolving @InterfaceAudience.Client public class ExampleClass { // Class implementation } In the above examples, the ExampleClass class is marked as a Client scenario, indicating that this class is mainly used for client applications.This mark can be used as part of the class document to help other developers quickly understand the usage and applicable scenarios of this class. Summary: Apache Yetus Audience Annotions is an annotation library used in the Apache Yetus project, which can be used to provide additional meta -data information for the Java class and methods.It can be used to mark and specify the expected audience and applicable scenarios of specified Java classes or methods.By using these annotations, developers can better organize and manage code to improve the maintenance and readability of code.