Use Apache Yetus Audience Annotations framework to mark and verify the design and implementation of the Java class library Yetus Audience Annotations Framework)

Apache Yetus Audience Annotions is a framework for labeling and verifying the design and implementation of the Java class library.This framework provides a set of annotations that can use these annotations to provide relevant information about the code library, and can define the rules to verify the correctness of the code. First, we need to introduce Apache Yetus Audience Annotations framework.It can be achieved by adding the following dependencies to the pom.xml file of the project: <dependency> <groupId>org.apache.yetus</groupId> <artifactId>audience-annotations</artifactId> <version>1.1.0</version> </dependency> Once the framework is introduced, we can start using the annotations to mark our code. A commonly used annotation is `org.apache.yetus.audience.interfaceaudience`, which is used to mark the audience of the interface.Using this annotation, we can clearly specify which audience is designed for the interface.For example, we can use the `interfaceAudience.public` annotation to mark a public interface, indicating that it is designed for public users.Another example is to indicate a private interface using the annotation of `interfaceAudinence.private` to indicate that it is designed for internal users. Another commonly used annotation is `org.apache.yetus.Audience.interfacestability`, which is used to mark the stability level of the interface.Using this annotation, we can indicate the stability of the interface, which helps users understand the changes that the interface may occur.For example, we can use the `InterfaceStability.stable` annotation to represent the stability of the interface, indicating that the interface will not be modified in the future version.Instead, we can use the `InterfaceStability.evolving` annotation to represent the stability of the interface, indicating that the interface may change in the future version. In addition to these annotations, Apache Yetus Audience Annotations also provides some other annotations, such as `ORG.APACHE.YETUS.AUDIENCE.PUBLIC` and` org.apache.yetus.audience.private` ParagraphVisible. Using Apache Yetus Audience Annotation's framework, we can clearly explain the design intentions in the code and verify the correctness of the code by defining rules.This helps other developers to better understand and use our code library. In the actual Java library, we can use Apache Yetus Audience Annotations as follows as follows: import org.apache.yetus.audience.InterfaceAudience; import org.apache.yetus.audience.InterfaceStability; @InterfaceAudience.Public @InterfaceStability.Stable public interface MyPublicInterface { // Definition of public interface // ... } @InterfaceAudience.Private @InterfaceStability.Unstable public class MyPrivateClass { // Private definition // ... } @InterfaceAudience.LimitedPrivate("com.example") @InterfaceStability.Evolving public class MyLimitedClass { // Limited the definition of private categories, can only be used in the com.example package // ... } @InterfaceAudience.Private @InterfaceStability.Unstable public class MyClass { @InterfaceAudience.Private private int privateField; @InterfaceAudience.Public public void publicMethod() { // The implementation of public methods // ... } } In the above examples, we use different `Org.apache.yetus.Audience.interfaceAudience` and` ORG.APACHE.YETUS.Audience.InterfaceStability `annotations to mark different types of interfaces and classes.In this way, other developers can clearly understand the audience and stability of the interface and class. By using the Apache Yetus Audience Annotations framework, we can better design and realize the Java library and ensure the correctness and stability of the code.