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合成注解属性调整为同时根据名称和类型进行覆盖;

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huangchengxing
2022-06-14 17:25:57 +08:00
parent b8a30fd11b
commit 5e402a1dd9
2 changed files with 40 additions and 16 deletions
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18
hutool-core/src/test/java/cn/hutool/core/annotation/SyntheticAnnotationTest.java
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@@ -23,10 +23,10 @@ public class SyntheticAnnotationTest {
Assert.assertEquals(syntheticAnnotation.getDeclaredAnnotations()[0], rootAnnotation);
Assert.assertEquals(3, syntheticAnnotation.getAnnotations().length);
Assert.assertEquals(syntheticAnnotation.getAttribute("childValue"), "Child!");
Assert.assertEquals(syntheticAnnotation.getAttribute("childValueAlias"), "Child!");
Assert.assertEquals(syntheticAnnotation.getAttribute("parentValue"), "Child's Parent!");
Assert.assertEquals(syntheticAnnotation.getAttribute("grandParentValue"), "Child's GrandParent!");
Assert.assertEquals(syntheticAnnotation.getAttribute("childValue", String.class), "Child!");
Assert.assertEquals(syntheticAnnotation.getAttribute("childValueAlias", String.class), "Child!");
Assert.assertEquals(syntheticAnnotation.getAttribute("parentValue", String.class), "Child's Parent!");
Assert.assertEquals(syntheticAnnotation.getAttribute("grandParentValue", String.class), "Child's GrandParent!");
Map<Class<? extends Annotation>, SyntheticAnnotation.MetaAnnotation> annotationMap = syntheticAnnotation.getMetaAnnotationMap();
ChildAnnotation childAnnotation = syntheticAnnotation.getAnnotation(ChildAnnotation.class);
@@ -34,31 +34,35 @@ public class SyntheticAnnotationTest {
Assert.assertNotNull(childAnnotation);
Assert.assertEquals(childAnnotation.childValue(), "Child!");
Assert.assertEquals(childAnnotation.childValueAlias(), "Child!");
Assert.assertEquals(childAnnotation.grandParentType(), Integer.class);
Assert.assertEquals(annotationMap, SyntheticAnnotation.of(childAnnotation).getMetaAnnotationMap());
ParentAnnotation parentAnnotation = syntheticAnnotation.getAnnotation(ParentAnnotation.class);
Assert.assertTrue(syntheticAnnotation.isAnnotationPresent(ParentAnnotation.class));
Assert.assertNotNull(parentAnnotation);
Assert.assertEquals(parentAnnotation.parentValue(), "Child's Parent!");
Assert.assertEquals(parentAnnotation.grandParentType(), "java.lang.Void");
Assert.assertEquals(annotationMap, SyntheticAnnotation.of(parentAnnotation).getMetaAnnotationMap());
GrandParentAnnotation grandParentAnnotation = syntheticAnnotation.getAnnotation(GrandParentAnnotation.class);
Assert.assertTrue(syntheticAnnotation.isAnnotationPresent(GrandParentAnnotation.class));
Assert.assertNotNull(grandParentAnnotation);
Assert.assertEquals(grandParentAnnotation.grandParentValue(), "Child's GrandParent!");
Assert.assertEquals(grandParentAnnotation.grandParentType(), Integer.class);
Assert.assertEquals(annotationMap, SyntheticAnnotation.of(grandParentAnnotation).getMetaAnnotationMap());
}
// 注解结构如下：
// AnnotatedClass -> @ChildAnnotation -> @ParentAnnotation -> @GrandParentAnnotation
// -> @GrandParentAnnotation
@ChildAnnotation(childValueAlias = "Child!")
class AnnotatedClass {}
@ChildAnnotation(childValueAlias = "Child!", grandParentType = Integer.class)
static class AnnotatedClass {}
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.ANNOTATION_TYPE })
@interface GrandParentAnnotation {
String grandParentValue() default "";
Class<?> grandParentType() default Void.class;
}
@GrandParentAnnotation(grandParentValue = "Parent's GrandParent!") // 覆盖元注解@GrandParentAnnotation的属性
@@ -66,6 +70,7 @@ public class SyntheticAnnotationTest {
@Target({ ElementType.TYPE })
@interface ParentAnnotation {
String parentValue() default "";
String grandParentType() default "java.lang.Void";
}
@GrandParentAnnotation(grandParentValue = "Child's GrandParent!") // 重复的元注解，靠近根注解的优先级高
@@ -76,6 +81,7 @@ public class SyntheticAnnotationTest {
String childValueAlias() default "";
@Alias("childValueAlias")
String childValue() default "";
Class<?> grandParentType() default Void.class;
}
}