本文整理了Java中java.lang.Class.getDeclaredAnnotation()方法的一些代码示例，展示了Class.getDeclaredAnnotation()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.getDeclaredAnnotation()方法的具体详情如下：
包路径：java.lang.Class
类名称：Class
方法名：getDeclaredAnnotation
[英]Returns the annotation if it exists.
[中]返回注释（如果存在）。
代码示例来源：origin: spring-projects/spring-framework
/**
* Determine whether the given {@code Class} is a Kotlin type
* (with Kotlin metadata present on it).
*/
public static boolean isKotlinType(Class<?> clazz) {
return (kotlinMetadata != null && clazz.getDeclaredAnnotation(kotlinMetadata) != null);
}代码示例来源：origin: org.springframework/spring-core
/**
* Determine whether the given {@code Class} is a Kotlin type
* (with Kotlin metadata present on it).
*/
public static boolean isKotlinType(Class<?> clazz) {
return (kotlinMetadata != null && clazz.getDeclaredAnnotation(kotlinMetadata) != null);
}代码示例来源：origin: swagger-api/swagger-core
public static io.swagger.v3.oas.annotations.media.Schema getSchemaDeclaredAnnotation(Class<?> cls) {
if (cls == null) {
return null;
}
io.swagger.v3.oas.annotations.media.Schema mp = null;
io.swagger.v3.oas.annotations.media.ArraySchema as = cls.getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.ArraySchema.class);
if (as != null) {
mp = as.schema();
} else {
mp = cls.getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.Schema.class);
}
return mp;
}代码示例来源：origin: apache/ignite
/**
* Gets declared annotation for a class.
*
* @param <T> Type of annotation to return.
* @param cls Class to get annotation from.
* @param annCls Annotation to get.
* @return Instance of annotation, or {@code null} if not found.
*/
@Nullable public static <T extends Annotation> T getDeclaredAnnotation(Class<?> cls, Class<T> annCls) {
if (cls == Object.class)
return null;
return cls.getDeclaredAnnotation(annCls);
}代码示例来源：origin: robovm/robovm
/**
* Returns true if the annotation exists.
*/
private boolean isDeclaredAnnotationPresent(Class<? extends Annotation> annotationClass) {
if (annotationClass == null) {
throw new NullPointerException("annotationClass == null");
}
return getDeclaredAnnotation(annotationClass) != null;
}代码示例来源：origin: neo4j/neo4j
private String groupPrefix()
{
return SslPolicyConfig.class.getDeclaredAnnotation( Group.class ).value();
}代码示例来源：origin: spring-projects/spring-framework
/**
* Determine whether an annotation of the specified {@code annotationType}
* is declared locally (i.e. <em>directly present</em>) on the supplied
* {@code clazz}.
* <p>The supplied {@link Class} may represent any type.
* <p>Meta-annotations will <em>not</em> be searched.
* <p>Note: This method does <strong>not</strong> determine if the annotation
* is {@linkplain java.lang.annotation.Inherited inherited}. For greater
* clarity regarding inherited annotations, consider using
* {@link #isAnnotationInherited(Class, Class)} instead.
* @param annotationType the annotation type to look for
* @param clazz the class to check for the annotation on
* @return {@code true} if an annotation of the specified {@code annotationType}
* is <em>directly present</em>
* @see java.lang.Class#getDeclaredAnnotations()
* @see java.lang.Class#getDeclaredAnnotation(Class)
* @see #isAnnotationInherited(Class, Class)
*/
public static boolean isAnnotationDeclaredLocally(Class<? extends Annotation> annotationType, Class<?> clazz) {
try {
return (clazz.getDeclaredAnnotation(annotationType) != null);
}
catch (Throwable ex) {
handleIntrospectionFailure(clazz, ex);
return false;
}
}代码示例来源：origin: resilience4j/resilience4j
private RateLimiter getRateLimiterAnnotation(ProceedingJoinPoint proceedingJoinPoint) {
RateLimiter rateLimiter = null;
Class<?> targetClass = proceedingJoinPoint.getTarget().getClass();
if (targetClass.isAnnotationPresent(RateLimiter.class)) {
rateLimiter = targetClass.getAnnotation(RateLimiter.class);
if (rateLimiter == null) {
rateLimiter = targetClass.getDeclaredAnnotation(RateLimiter.class);
}
if (rateLimiter == null) {
logger.debug("TargetClass has no declared annotation 'RateLimiter'");
}
}
return rateLimiter;
}代码示例来源：origin: spring-projects/spring-framework
@Nullable
private static Class<?> resolveExplicitTestContextBootstrapper(Class<?> testClass) {
Set<BootstrapWith> annotations = AnnotatedElementUtils.findAllMergedAnnotations(testClass, BootstrapWith.class);
if (annotations.isEmpty()) {
return null;
}
if (annotations.size() == 1) {
return annotations.iterator().next().value();
}
// Allow directly-present annotation to override annotations that are meta-present.
BootstrapWith bootstrapWith = testClass.getDeclaredAnnotation(BootstrapWith.class);
if (bootstrapWith != null) {
return bootstrapWith.value();
}
throw new IllegalStateException(String.format(
"Configuration error: found multiple declarations of @BootstrapWith for test class [%s]: %s",
testClass.getName(), annotations));
}代码示例来源：origin: robovm/robovm
@Override public <A extends Annotation> A getAnnotation(Class<A> annotationType) {
if (annotationType == null) {
throw new NullPointerException("annotationType == null");
}
A annotation = getDeclaredAnnotation(annotationType);
if (annotation != null) {
return annotation;
}
if (annotationType.isAnnotationPresent(Inherited.class)) {
for (Class<?> sup = getSuperclass(); sup != null; sup = sup.getSuperclass()) {
annotation = sup.getDeclaredAnnotation(annotationType);
if (annotation != null) {
return annotation;
}
}
}
return null;
}代码示例来源：origin: swagger-api/swagger-core
public static io.swagger.v3.oas.annotations.media.Schema getSchemaDeclaredAnnotation(Annotated a) {
if (a == null) {
return null;
}
io.swagger.v3.oas.annotations.media.ArraySchema arraySchema = a.getRawType().getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.ArraySchema.class);
if (arraySchema != null) {
return arraySchema.schema();
} else {
return a.getRawType().getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.Schema.class);
}
}代码示例来源：origin: resilience4j/resilience4j
private CircuitBreaker getBackendMonitoredAnnotation(ProceedingJoinPoint proceedingJoinPoint) {
if (logger.isDebugEnabled()) {
logger.debug("circuitBreaker parameter is null");
}
CircuitBreaker circuitBreaker = null;
Class<?> targetClass = proceedingJoinPoint.getTarget().getClass();
if (targetClass.isAnnotationPresent(CircuitBreaker.class)) {
circuitBreaker = targetClass.getAnnotation(CircuitBreaker.class);
if (circuitBreaker == null) {
if (logger.isDebugEnabled()) {
logger.debug("TargetClass has no annotation 'CircuitBreaker'");
}
circuitBreaker = targetClass.getDeclaredAnnotation(CircuitBreaker.class);
if (circuitBreaker == null) {
if (logger.isDebugEnabled()) {
logger.debug("TargetClass has no declared annotation 'CircuitBreaker'");
}
}
}
}
return circuitBreaker;
}代码示例来源：origin: spring-projects/spring-framework
private static <A extends Annotation> A findAnnotation(Class<?> clazz, Class<A> annotationType, Set<Annotation> visited) {
try {
A annotation = clazz.getDeclaredAnnotation(annotationType);
if (annotation != null) {
return annotation;代码示例来源：origin: org.springframework/spring-core
/**
* Determine whether an annotation of the specified {@code annotationType}
* is declared locally (i.e. <em>directly present</em>) on the supplied
* {@code clazz}.
* <p>The supplied {@link Class} may represent any type.
* <p>Meta-annotations will <em>not</em> be searched.
* <p>Note: This method does <strong>not</strong> determine if the annotation
* is {@linkplain java.lang.annotation.Inherited inherited}. For greater
* clarity regarding inherited annotations, consider using
* {@link #isAnnotationInherited(Class, Class)} instead.
* @param annotationType the annotation type to look for
* @param clazz the class to check for the annotation on
* @return {@code true} if an annotation of the specified {@code annotationType}
* is <em>directly present</em>
* @see java.lang.Class#getDeclaredAnnotations()
* @see java.lang.Class#getDeclaredAnnotation(Class)
* @see #isAnnotationInherited(Class, Class)
*/
public static boolean isAnnotationDeclaredLocally(Class<? extends Annotation> annotationType, Class<?> clazz) {
try {
return (clazz.getDeclaredAnnotation(annotationType) != null);
}
catch (Throwable ex) {
handleIntrospectionFailure(clazz, ex);
return false;
}
}代码示例来源：origin: org.springframework/spring-core
private static <A extends Annotation> A findAnnotation(Class<?> clazz, Class<A> annotationType, Set<Annotation> visited) {
try {
A annotation = clazz.getDeclaredAnnotation(annotationType);
if (annotation != null) {
return annotation;代码示例来源：origin: kiegroup/jbpm
public static void validate(Class<? extends WorkItemHandler> handlerClass,
WorkItem workItem) throws Exception {
Wid handlerWidAnnotation = handlerClass.getDeclaredAnnotation(Wid.class);
if (workItem == null || handlerWidAnnotation == null || handlerWidAnnotation.parameters() == null || handlerWidAnnotation.parameters().length < 1) {
// nothing to validate
return;
}
for (WidParameter handlerWidParameter : handlerWidAnnotation.parameters()) {
if (handlerWidParameter.name() != null && handlerWidParameter.required()) {
if (workItem.getParameter(handlerWidParameter.name()) == null) {
logger.error("Workitem declares following required parameter which does not exist: " + handlerWidParameter.name());
throw new IllegalArgumentException("Workitem declares following required parameter which does not exist: " + handlerWidParameter.name());
}
}
}
}
}代码示例来源：origin: JpressProjects/jpress
WechatAddonConfig wechatAddonConfig = addonClass.getDeclaredAnnotation(WechatAddonConfig.class);
if (wechatAddonConfig == null) {
continue;代码示例来源：origin: swagger-api/swagger-core
protected Discriminator resolveDiscriminator(JavaType type, ModelConverterContext context) {
io.swagger.v3.oas.annotations.media.Schema declaredSchemaAnnotation = AnnotationsUtils.getSchemaDeclaredAnnotation(type.getRawClass());
String disc = (declaredSchemaAnnotation == null) ? "" : declaredSchemaAnnotation.discriminatorProperty();
if (disc.isEmpty()) {
// longer method would involve AnnotationIntrospector.findTypeResolver(...) but:
JsonTypeInfo typeInfo = type.getRawClass().getDeclaredAnnotation(JsonTypeInfo.class);
if (typeInfo != null) {
disc = typeInfo.property();
}
}
if (!disc.isEmpty()) {
Discriminator discriminator = new Discriminator()
.propertyName(disc);
if (declaredSchemaAnnotation != null) {
DiscriminatorMapping mappings[] = declaredSchemaAnnotation.discriminatorMapping();
if (mappings != null && mappings.length > 0) {
for (DiscriminatorMapping mapping : mappings) {
if (!mapping.value().isEmpty() && !mapping.schema().equals(Void.class)) {
discriminator.mapping(mapping.value(), constructRef(context.resolve(new AnnotatedType().type(mapping.schema())).getName()));
}
}
}
}
return discriminator;
}
return null;
}代码示例来源：origin: swagger-api/swagger-core
public static Annotation mergeSchemaAnnotations(
Annotation[] ctxAnnotations, JavaType type) {
io.swagger.v3.oas.annotations.media.Schema tS = type.getRawClass().getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.Schema.class);
if (!hasSchemaAnnotation(tS)) {
tS = null;
io.swagger.v3.oas.annotations.media.ArraySchema tA = type.getRawClass().getDeclaredAnnotation(io.swagger.v3.oas.annotations.media.ArraySchema.class);
if (!hasArrayAnnotation(tA)) {
tA = null;代码示例来源：origin: mulesoft/mule
/**
* Finds the first class in a class hierarchy that is annotated with {@link ArtifactClassLoaderRunnerConfig}.
* <p/>
* Annotated class is searched by levels, in a Breadth-first search (BFS) way. Starting from the class received as a parameter,
* first the class is checked and return if annotated. Otherwise interface directly implemented by the class will be added to
* review and finally its super class.
* <p/>
* Implemented interfaces have priority over class hierarchy as base classes can be imported from other modules with different
* runner configurations.
*
* @param testClass class of the test begin executed by the test runner.
* @return the first class found in the hierarchy that is annotated, null if no class in the hierarchy is annotated.
*/
public static Class findConfiguredClass(Class<?> testClass) {
Deque<Class> classesToReview = new LinkedList<>();
classesToReview.push(testClass);
while (!classesToReview.isEmpty()) {
Class currentClass = classesToReview.pop();
if (currentClass.getDeclaredAnnotation(ArtifactClassLoaderRunnerConfig.class) != null) {
LOGGER.info("Reading test runner configuration for test '{}' from '{}'", testClass.getName(), currentClass.getName());
return currentClass;
}
addAll(classesToReview, currentClass.getInterfaces());
if (currentClass.getSuperclass() != null && currentClass.getSuperclass() != Object.class) {
classesToReview.add(currentClass.getSuperclass());
}
}
return null;
}内容来源于网络，如有侵权，请联系作者删除！