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ExtensionRegister#doRegistration查找annotation的方法调整建议 #422

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wanggancheng opened this issue Apr 28, 2023 · 0 comments
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@wanggancheng
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目前查找Extension.class时使用的是AnnotationUtils.findAnnotation,推进使用 AnnotatedElementUtils.findMergedAnnotation。

修改后可以支持层级化的Annotation。
1、使用者可能自定义Annotion,如:

@retention(RetentionPolicy.RUNTIME)
@target({ElementType.TYPE})
@extension
@component
public @interface MyExtension {

@AliasFor(attribute = "bizId",annotation = Extension.class)
String bizId() default BizScenario.DEFAULT_BIZ_ID;
@AliasFor(attribute = "useCase",annotation = Extension.class)
String useCase() default BizScenario.DEFAULT_USE_CASE ;
@AliasFor(attribute = "scenario",annotation = Extension.class)
String scenario() default BizScenario.DEFAULT_SCENARIO;

}

2、在实际使用时,类似下面的使用场景:

@Myextension(bizId = "A")
@component
public class SomeExtensionA implements SomeExtPt

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