java.lang.Class.getDeclaredAnnotationsByType()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.lang.Class.getDeclaredAnnotationsByType()方法的一些代码示例，展示了Class.getDeclaredAnnotationsByType()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Class.getDeclaredAnnotationsByType()方法的具体详情如下：
包路径：java.lang.Class
类名称：Class
方法名：getDeclaredAnnotationsByType

Class.getDeclaredAnnotationsByType介绍

暂无

代码示例

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void getDeclaredRepeatableAnnotationsDeclaredOnClass() {
  3.   final List<String> expectedValuesJava = asList("A", "B", "C");
  4.   final List<String> expectedValuesSpring = asList("A", "B", "C", "meta1");
  5.   // Java 8
  6.   MyRepeatable[] array = MyRepeatableClass.class.getDeclaredAnnotationsByType(MyRepeatable.class);
  7.   assertNotNull(array);
  8.   List<String> values = stream(array).map(MyRepeatable::value).collect(toList());
  9.   assertThat(values, is(expectedValuesJava));
  10.   // Spring
  11.   Set<MyRepeatable> set = getDeclaredRepeatableAnnotations(MyRepeatableClass.class, MyRepeatable.class, MyRepeatableContainer.class);
  12.   assertNotNull(set);
  13.   values = set.stream().map(MyRepeatable::value).collect(toList());
  14.   assertThat(values, is(expectedValuesSpring));
  15.   // When container type is omitted and therefore inferred from @Repeatable
  16.   set = getDeclaredRepeatableAnnotations(MyRepeatableClass.class, MyRepeatable.class);
  17.   assertNotNull(set);
  18.   values = set.stream().map(MyRepeatable::value).collect(toList());
  19.   assertThat(values, is(expectedValuesSpring));
  20. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void getDeclaredRepeatableAnnotationsDeclaredOnSuperclass() {
  3.   final Class<?> clazz = SubMyRepeatableClass.class;
  4.   // Java 8
  5.   MyRepeatable[] array = clazz.getDeclaredAnnotationsByType(MyRepeatable.class);
  6.   assertNotNull(array);
  7.   assertThat(array.length, is(0));
  8.   // Spring
  9.   Set<MyRepeatable> set = getDeclaredRepeatableAnnotations(clazz, MyRepeatable.class, MyRepeatableContainer.class);
  10.   assertNotNull(set);
  11.   assertThat(set.size(), is(0));
  12.   // When container type is omitted and therefore inferred from @Repeatable
  13.   set = getDeclaredRepeatableAnnotations(clazz, MyRepeatable.class);
  14.   assertNotNull(set);
  15.   assertThat(set.size(), is(0));
  16. }

代码示例来源：origin: software.amazon.jsii/jsii-runtime

  1. /**
  2.  * Attempts to find the @Jsii annotation from a type.
  3.  * @param type The type.
  4.  * @param inherited If 'true' will look for the annotation up the class hierarchy.
  5.  * @return The annotation or null.
  6.  */
  7. static Jsii tryGetJsiiAnnotation(final Class<?> type, final boolean inherited) {
  8.   Jsii[] ann;
  9.   if (inherited) {
  10.     ann = (Jsii[]) type.getAnnotationsByType(Jsii.class);
  11.   } else {
  12.     ann = (Jsii[]) type.getDeclaredAnnotationsByType(Jsii.class);
  13.   }
  14.   if (ann.length == 0) {
  15.     return null;
  16.   }
  17.   return ann[0];
  18. }

代码示例来源：origin: com.fitbur.testify/integration

  1. public void real(Set<FieldDescriptor> fieldDescriptors) {
  2.   Class<?> testClass = context.getTestClass();
  3.   of(testClass.getDeclaredAnnotationsByType(Module.class))
  4.       .map(Module::value)
  5.       .distinct()
  6.       .forEachOrdered(locator::addModule);
  7.   locator.reload();
  8.   testReifier.reifyTest(fieldDescriptors);
  9. }

代码示例来源：origin: com.fitbur.testify.level/system

  1. public void real(Set<FieldDescriptor> fieldDescriptors) {
  2.   Class<?> testClass = context.getTestClass();
  3.   of(testClass.getDeclaredAnnotationsByType(Module.class))
  4.       .map(Module::value)
  5.       .distinct()
  6.       .forEachOrdered(locator::addModule);
  7.   locator.reload();
  8.   testReifier.reifyTest(fieldDescriptors);
  9. }

代码示例来源：origin: com.fitbur.testify/system

  1. public void real(Set<FieldDescriptor> fieldDescriptors) {
  2.   Class<?> testClass = context.getTestClass();
  3.   of(testClass.getDeclaredAnnotationsByType(Module.class))
  4.       .map(Module::value)
  5.       .distinct()
  6.       .forEachOrdered(locator::addModule);
  7.   locator.reload();
  8.   testReifier.reifyTest(fieldDescriptors);
  9. }

代码示例来源：origin: com.fitbur.testify.level/integration

  1. public void real(Set<FieldDescriptor> fieldDescriptors) {
  2.   Class<?> testClass = context.getTestClass();
  3.   of(testClass.getDeclaredAnnotationsByType(Module.class))
  4.       .map(Module::value)
  5.       .distinct()
  6.       .forEachOrdered(locator::addModule);
  7.   locator.reload();
  8.   testReifier.reifyTest(fieldDescriptors);
  9. }

代码示例来源：origin: kumuluz/kumuluzee

  1. private <E extends Extension> List<ExtensionWrapper<E>> processSingleEeExtensions(List<E> extensions, List<EeComponentWrapper>
  2.     wrappedComponents) {
  3.   List<ExtensionWrapper<E>> extensionWrappers = new ArrayList<>();
  4.   for (E e : extensions) {
  5.     EeExtensionDef def = e.getClass().getDeclaredAnnotation(EeExtensionDef.class);
  6.     if (def != null) {
  7.       EeComponentDependency[] dependencies = e.getClass().getDeclaredAnnotationsByType(EeComponentDependency.class);
  8.       EeComponentOptional[] optionals = e.getClass().getDeclaredAnnotationsByType(EeComponentOptional.class);
  9.       extensionWrappers.add(new ExtensionWrapper<>(e, def.name(), def.group(), dependencies, optionals));
  10.     }
  11.   }
  12.   log.info("Processing EE single extensions dependencies");
  13.   processEeExtensionDependencies(extensionWrappers, wrappedComponents);
  14.   return extensionWrappers;
  15. }

代码示例来源：origin: org.leapframework/leap-orm

  1. @Override
  2. public void preMappingEntity(MetadataContext context, EntityMappingBuilder emb) throws MetadataException {
  3.   Class<?> sourceClass = emb.getSourceClass();
  4.   if(null != sourceClass){
  5.     mappingEntityByAnnotation(context, emb, sourceClass.getAnnotation(Entity.class));
  6.     mappingEntityByAnnotation(context, emb, sourceClass.getAnnotation(Table.class));
  7.     mappingEntityByAnnotation(context, emb, sourceClass.getAnnotation(AutoCreateTable.class));
  8.     mappingEntityByAnnotation(context, emb, sourceClass.getAnnotation(AutoGenerateColumns.class));
  9.     mappingListenerByAnnotations(context, emb, sourceClass.getDeclaredAnnotationsByType(Entity.Listener.class));
  10.     mappingManyToOneByClassAnnotation(context, emb, sourceClass.getDeclaredAnnotationsByType(ManyToOne.class));
  11.     mappingManyToManyByClassAnnotation(context, emb, sourceClass.getDeclaredAnnotationsByType(ManyToMany.class));
  12.   }
  13. }

代码示例来源：origin: com.fitbur.testify.level/system

  1. of(testClass.getDeclaredAnnotationsByType(Module.class))
  2.     .map(Module::value)
  3.     .distinct()
  4.     .forEachOrdered(locator::addModule);
  5. of(testClass.getDeclaredAnnotationsByType(Scan.class))
  6.     .map(Scan::value)
  7.     .distinct()

代码示例来源：origin: com.fitbur.testify/system

  1. of(testClass.getDeclaredAnnotationsByType(Module.class))
  2.     .map(Module::value)
  3.     .distinct()
  4.     .forEachOrdered(locator::addModule);
  5. of(testClass.getDeclaredAnnotationsByType(Scan.class))
  6.     .map(Scan::value)
  7.     .distinct()

代码示例来源：origin: com.fitbur.testify.level/integration

  1. of(testClass.getDeclaredAnnotationsByType(Module.class))
  2.     .map(Module::value)
  3.     .distinct()
  4.     .forEachOrdered(locator::addModule);
  5. of(testClass.getDeclaredAnnotationsByType(Scan.class))
  6.     .map(Scan::value)
  7.     .distinct()

代码示例来源：origin: com.fitbur.testify/integration

  1. of(testClass.getDeclaredAnnotationsByType(Module.class))
  2.     .map(Module::value)
  3.     .distinct()
  4.     .forEachOrdered(locator::addModule);
  5. of(testClass.getDeclaredAnnotationsByType(Scan.class))
  6.     .map(Scan::value)
  7.     .distinct()

代码示例来源：origin: neo4j/neo4j-ogm

  1. private synchronized Collection<CompositeIndex> initCompositeIndexFields() {
  2.   // init property fields to be able to check existence of properties
  3.   propertyFields();
  4.   if (cls == null) {
  5.     try {
  6.       cls = Class.forName(className, false, Thread.currentThread().getContextClassLoader());
  7.     } catch (ClassNotFoundException e) {
  8.       throw new RuntimeException("Could not get annotation info for class " + className, e);
  9.     }
  10.   }
  11.   CompositeIndex[] annotations = cls.getDeclaredAnnotationsByType(CompositeIndex.class);
  12.   ArrayList<CompositeIndex> result = new ArrayList<>(annotations.length);
  13.   for (CompositeIndex annotation : annotations) {
  14.     String[] properties = annotation.value().length > 0 ? annotation.value() : annotation.properties();
  15.     if (properties.length < 1) {
  16.       throw new MetadataException("Incorrect CompositeIndex definition on " + className +
  17.         ". Provide at least 1 property");
  18.     }
  19.     for (String property : properties) {
  20.       FieldInfo fieldInfo = propertyFields.get(property);
  21.       if (fieldInfo == null) {
  22.         throw new MetadataException("Incorrect CompositeIndex definition on " + className + ". Property " +
  23.           property + " does not exists.");
  24.       }
  25.     }
  26.     result.add(annotation);
  27.   }
  28.   return result;
  29. }

代码示例来源：origin: kumuluz/kumuluzee

  1. private <E extends Extension> List<ExtensionWrapper<E>> processGroupEeExtensions(List<E> extensions, List<EeComponentWrapper>
  2.     wrappedComponents) {
  3.   Map<String, ExtensionWrapper<E>> eeExt = new HashMap<>();
  4.   // Wrap extensions with their metadata and check for duplicates
  5.   for (E e : extensions) {
  6.     EeExtensionDef def = e.getClass().getDeclaredAnnotation(EeExtensionDef.class);
  7.     if (def != null) {
  8.       if (eeExt.containsKey(def.group())) {
  9.         String msg = "Found multiple implementations (" + eeExt.get(def.group()).getName() +
  10.             ", " + def.name() + ") of the same EE extension group (" + def.group() + "). " +
  11.             "Please check to make sure you only include a single implementation of a specific " +
  12.             "EE extension group.";
  13.         log.severe(msg);
  14.         throw new KumuluzServerException(msg);
  15.       }
  16.       EeComponentDependency[] dependencies = e.getClass().getDeclaredAnnotationsByType
  17.           (EeComponentDependency.class);
  18.       EeComponentOptional[] optionals = e.getClass().getDeclaredAnnotationsByType(EeComponentOptional.class);
  19.       eeExt.put(def.group(), new ExtensionWrapper<>(e, def.name(), def.group(), dependencies, optionals));
  20.     }
  21.   }
  22.   List<ExtensionWrapper<E>> extensionWrappers = new ArrayList<>(eeExt.values());
  23.   log.info("Processing EE extension dependencies");
  24.   processEeExtensionDependencies(extensionWrappers, wrappedComponents);
  25.   return extensionWrappers;
  26. }

代码示例来源：origin: software.amazon.jsii/jsii-runtime

  1. && klass.getDeclaredAnnotationsByType(Jsii.class).length == 0
  2. && klass != Object.class) {

代码示例来源：origin: lucko/helper

  1. /**
  2.  * Resolves all {@link MavenLibrary} annotations on the given class.
  3.  *
  4.  * @param clazz the class to load libraries for.
  5.  */
  6. public static void loadAll(Class<?> clazz) {
  7.   MavenLibrary[] libs = clazz.getDeclaredAnnotationsByType(MavenLibrary.class);
  8.   if (libs == null) {
  9.     return;
  10.   }
  11.   for (MavenLibrary lib : libs) {
  12.     load(lib.groupId(), lib.artifactId(), lib.version(), lib.repo().url());
  13.   }
  14. }

代码示例来源：origin: me.lucko/helper

  1. /**
  2.  * Resolves all {@link MavenLibrary} annotations on the given class.
  3.  *
  4.  * @param clazz the class to load libraries for.
  5.  */
  6. public static void loadAll(Class<?> clazz) {
  7.   MavenLibrary[] libs = clazz.getDeclaredAnnotationsByType(MavenLibrary.class);
  8.   if (libs == null) {
  9.     return;
  10.   }
  11.   for (MavenLibrary lib : libs) {
  12.     load(lib.groupId(), lib.artifactId(), lib.version(), lib.repo().url());
  13.   }
  14. }

代码示例来源：origin: org.testifyproject/api

  1. /**
  2.  * Get all the annotations of the given type.
  3.  *
  4.  * @param <A> annotation type
  5.  * @param annotationType the annotation type
  6.  * @return optional with annotation, empty optional otherwise
  7.  */
  8. default <A extends Annotation> List<A> getAnnotations(Class<A> annotationType) {
  9.   T type = getAnnotatedElement();
  10.   A[] declaredAnnotations = type.getDeclaredAnnotationsByType(annotationType);
  11.   ImmutableList.Builder<A> listBuilder = ImmutableList.builder();
  12.   listBuilder.add(declaredAnnotations);
  13.   for (Annotation annotation : type.getDeclaredAnnotations()) {
  14.     Class<? extends Annotation> declaredAnnotationType = annotation.annotationType();
  15.     Bundle bundle = declaredAnnotationType.getDeclaredAnnotation(Bundle.class);
  16.     if (bundle != null) {
  17.       A[] bundleAnnotations =
  18.           declaredAnnotationType.getDeclaredAnnotationsByType(annotationType);
  19.       listBuilder.add(bundleAnnotations);
  20.     }
  21.   }
  22.   return listBuilder.build();
  23. }

代码示例来源：origin: kumuluz/kumuluzee

  1. EeComponentDependency[] dependencies = c.getClass().getDeclaredAnnotationsByType
  2.     (EeComponentDependency.class);
  3. EeComponentOptional[] optionals = c.getClass().getDeclaredAnnotationsByType(EeComponentOptional.class);

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