程序包 cn.taketoday.core.type

接口 AnnotatedTypeMetadata

所有已知子接口:
AnnotationMetadata, MethodMetadata
所有已知实现类:
SimpleAnnotationMetadata, SimpleMethodMetadata, StandardAnnotationMetadata, StandardMethodMetadata
public interface AnnotatedTypeMetadata
Defines access to the annotations of a specific type (class or method), in a form that does not necessarily require class loading of the types being inspected. Note, however, that classes for encountered annotations will be loaded.
从以下版本开始:
4.0
作者:
Juergen Hoeller, Mark Fisher, Mark Pollack, Chris Beams, Phillip Webb, Sam Brannen, Harry Yang
另请参阅:

  • 方法详细资料

    • getAnnotations

      MergedAnnotations getAnnotations()
      Get annotation details based on the direct annotations and meta-annotations of the underlying element.
      返回:
      merged annotations based on the direct annotations and meta-annotations

    • getAnnotation

      default <A extends Annotation> MergedAnnotation<A> getAnnotation(Class<A> annotationType)
      Get the nearest matching annotation or meta-annotation of the specified type, or MergedAnnotation.missing() if none is present.
      参数:
      annotationType - the annotation type to get
      返回:
      a MergedAnnotation instance

    • getAnnotation

      default <A extends Annotation> MergedAnnotation<A> getAnnotation(String annotationType)
      Get the nearest matching annotation or meta-annotation of the specified type, or MergedAnnotation.missing() if none is present.
      参数:
      annotationType - the fully qualified class name of the annotation type to get
      返回:
      a MergedAnnotation instance

    • getAnnotationTypes

      default Set<String> getAnnotationTypes()
      Get the fully qualified class names of all annotation types that are present on the underlying class.
      返回:
      the annotation type names

    • getMetaAnnotationTypes

      default Set<String> getMetaAnnotationTypes(Class<? extends Annotation> annotationType)
      Get the fully qualified class names of all meta-annotation types that are present on the given annotation type on the underlying class.
      参数:
      annotationType - the class of the meta-annotation type to look for
      返回:
      the meta-annotation type names, or an empty set if none found

    • getMetaAnnotationTypes

      default Set<String> getMetaAnnotationTypes(String annotationName)
      Get the fully qualified class names of all meta-annotation types that are present on the given annotation type on the underlying class.
      参数:
      annotationName - the fully qualified class name of the annotation type to look for meta-annotations on
      返回:
      the meta-annotation type names, or an empty set if none found

    • hasAnnotation

      default boolean hasAnnotation(Class<? extends Annotation> annotationType)
      Determine whether an annotation of the given type is present on the underlying class.
      参数:
      annotationType - the class of the annotation type to look for
      返回:
      true if a matching annotation is present

    • hasAnnotation

      default boolean hasAnnotation(String annotationName)
      Determine whether an annotation of the given type is present on the underlying class.
      参数:
      annotationName - the fully qualified class name of the annotation type to look for
      返回:
      true if a matching annotation is present

    • hasMetaAnnotation

      default boolean hasMetaAnnotation(Class<? extends Annotation> metaAnnotationType)
      Determine whether the underlying class has an annotation that is itself annotated with the meta-annotation of the given type.
      参数:
      metaAnnotationType - the class of the meta-annotation type to look for
      返回:
      true if a matching meta-annotation is present

    • hasMetaAnnotation

      default boolean hasMetaAnnotation(String metaAnnotationName)
      Determine whether the underlying class has an annotation that is itself annotated with the meta-annotation of the given type.
      参数:
      metaAnnotationName - the fully qualified class name of the meta-annotation type to look for
      返回:
      true if a matching meta-annotation is present

    • isAnnotated

      default boolean isAnnotated(Class<? extends Annotation> annotationType)
      Determine whether the underlying element has an annotation or meta-annotation of the given type defined.

      If this method returns true, then getAnnotationAttributes(java.lang.Class<? extends java.lang.annotation.Annotation>) will return a non-null Map.

      参数:
      annotationType - the class of the annotation type to look for
      返回:
      whether a matching annotation is defined

    • isAnnotated

      default boolean isAnnotated(String annotationName)
      Determine whether the underlying element has an annotation or meta-annotation of the given type defined.

      If this method returns true, then getAnnotationAttributes(java.lang.Class<? extends java.lang.annotation.Annotation>) will return a non-null Map.

      参数:
      annotationName - the fully qualified class name of the annotation type to look for
      返回:
      whether a matching annotation is defined

    • getAnnotationAttributes

      @Nullable default Map<String,Object> getAnnotationAttributes(Class<? extends Annotation> annotationType)
      Retrieve the attributes of the annotation of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation).

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationType - the fully-qualified class of the annotation type to look for
      返回:
      a Map of attributes, with each annotation attribute name as map key (e.g. "location") and the attribute's value as map value; or null if no matching annotation is found

    • getAnnotationAttributes

      @Nullable default Map<String,Object> getAnnotationAttributes(String annotationName)
      Retrieve the attributes of the annotation of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation).

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationName - the fully-qualified class name of the annotation type to look for
      返回:
      a Map of attributes, with each annotation attribute name as map key (e.g. "location") and the attribute's value as map value; or null if no matching annotation is found

    • getAnnotationAttributes

      @Nullable default Map<String,Object> getAnnotationAttributes(Class<? extends Annotation> annotationType, boolean classValuesAsString)
      Retrieve the attributes of the annotation of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation).

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationType - the fully-qualified class of the annotation type to look for
      classValuesAsString - whether to convert class references to String class names for exposure as values in the returned Map, instead of Class references which might potentially have to be loaded first
      返回:
      a Map of attributes, with each annotation attribute name as map key (e.g. "location") and the attribute's value as map value; or null if no matching annotation is found

    • getAnnotationAttributes

      @Nullable default Map<String,Object> getAnnotationAttributes(String annotationName, boolean classValuesAsString)
      Retrieve the attributes of the annotation of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation).

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationName - the fully-qualified class name of the annotation type to look for
      classValuesAsString - whether to convert class references to String class names for exposure as values in the returned Map, instead of Class references which might potentially have to be loaded first
      返回:
      a Map of attributes, with each annotation attribute name as map key (e.g. "location") and the attribute's value as map value; or null if no matching annotation is found

    • getAllAnnotationAttributes

      @Nullable default MultiValueMap<String,Object> getAllAnnotationAttributes(Class<? extends Annotation> annotationType)
      Retrieve all attributes of all annotations of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation). Note that this variant does not take attribute overrides into account.
      参数:
      annotationType - the class of the annotation type to look for
      返回:
      a MultiMap of attributes, with the attribute name as key (e.g. "value") and a list of the defined attribute values as Map value. This return value will be null if no matching annotation is defined.
      另请参阅:

    • getAllAnnotationAttributes

      @Nullable default MultiValueMap<String,Object> getAllAnnotationAttributes(String annotationName)
      Retrieve all attributes of all annotations of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation). Note that this variant does not take attribute overrides into account.
      参数:
      annotationName - the fully qualified class name of the annotation type to look for
      返回:
      a MultiMap of attributes, with the attribute name as key (e.g. "value") and a list of the defined attribute values as Map value. This return value will be null if no matching annotation is defined.
      另请参阅:

    • getAllAnnotationAttributes

      @Nullable default MultiValueMap<String,Object> getAllAnnotationAttributes(Class<? extends Annotation> annotationType, boolean classValuesAsString)
      Retrieve all attributes of all annotations of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation). Note that this variant does not take attribute overrides into account.
      参数:
      annotationType - the class of the annotation type to look for
      classValuesAsString - whether to convert class references to String
      返回:
      a MultiMap of attributes, with the attribute name as key (e.g. "value") and a list of the defined attribute values as Map value. This return value will be null if no matching annotation is defined.
      另请参阅:

    • getAllAnnotationAttributes

      @Nullable default MultiValueMap<String,Object> getAllAnnotationAttributes(String annotationName, boolean classValuesAsString)
      Retrieve all attributes of all annotations of the given type, if any (i.e. if defined on the underlying element, as direct annotation or meta-annotation). Note that this variant does not take attribute overrides into account.
      参数:
      annotationName - the fully qualified class name of the annotation type to look for
      classValuesAsString - whether to convert class references to String
      返回:
      a MultiMap of attributes, with the attribute name as key (e.g. "value") and a list of the defined attribute values as Map value. This return value will be null if no matching annotation is defined.
      另请参阅:

    • getMergedRepeatableAnnotationAttributes

      default Set<AnnotationAttributes> getMergedRepeatableAnnotationAttributes(Class<? extends Annotation> annotationType, Class<? extends Annotation> containerType, boolean classValuesAsString)
      Retrieve all repeatable annotations of the given type within the annotation hierarchy above the underlying element (as direct annotation or meta-annotation); and for each annotation found, merge that annotation's attributes with matching attributes from annotations in lower levels of the annotation hierarchy and store the results in an instance of AnnotationAttributes.

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationType - the annotation type to find
      containerType - the type of the container that holds the annotations
      classValuesAsString - whether to convert class references to String class names for exposure as values in the returned AnnotationAttributes, instead of Class references which might potentially have to be loaded first
      返回:
      the set of all merged repeatable AnnotationAttributes found, or an empty set if none were found
      另请参阅:

    • getMergedRepeatableAnnotationAttributes

      default Set<AnnotationAttributes> getMergedRepeatableAnnotationAttributes(Class<? extends Annotation> annotationType, Class<? extends Annotation> containerType, boolean classValuesAsString, boolean sortByReversedMetaDistance)
      Retrieve all repeatable annotations of the given type within the annotation hierarchy above the underlying element (as direct annotation or meta-annotation); and for each annotation found, merge that annotation's attributes with matching attributes from annotations in lower levels of the annotation hierarchy and store the results in an instance of AnnotationAttributes.

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      If the sortByReversedMetaDistance flag is set to true, the results will be sorted in reversed order based on each annotation's meta distance, which effectively orders meta-annotations before annotations that are declared directly on the underlying element.

      参数:
      annotationType - the annotation type to find
      containerType - the type of the container that holds the annotations
      classValuesAsString - whether to convert class references to String class names for exposure as values in the returned AnnotationAttributes, instead of Class references which might potentially have to be loaded first
      sortByReversedMetaDistance - true if the results should be sorted in reversed order based on each annotation's meta distance
      返回:
      the set of all merged repeatable AnnotationAttributes found, or an empty set if none were found
      另请参阅:

    • getMergedRepeatableAnnotation

      default <A extends Annotation> Set<MergedAnnotation<A>> getMergedRepeatableAnnotation(Class<A> annotationType, Class<? extends Annotation> containerType)
      Retrieve all repeatable annotations of the given type within the annotation hierarchy above the underlying element (as direct annotation or meta-annotation); and for each annotation found, merge that annotation's attributes with matching attributes from annotations in lower levels of the annotation hierarchy and store the results in an instance of MergedAnnotation.

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      参数:
      annotationType - the annotation type to find
      containerType - the type of the container that holds the annotations
      返回:
      the set of all merged repeatable MergedAnnotation found, or an empty set if none were found
      另请参阅:

    • getMergedRepeatableAnnotation

      default <A extends Annotation> Set<MergedAnnotation<A>> getMergedRepeatableAnnotation(Class<A> annotationType, Class<? extends Annotation> containerType, boolean sortByReversedMetaDistance)
      Retrieve all repeatable annotations of the given type within the annotation hierarchy above the underlying element (as direct annotation or meta-annotation); and for each annotation found, merge that annotation's attributes with matching attributes from annotations in lower levels of the annotation hierarchy and store the results in an instance of MergedAnnotation.

      @AliasFor semantics are fully supported, both within a single annotation and within annotation hierarchies.

      If the sortByReversedMetaDistance flag is set to true, the results will be sorted in reversed order based on each annotation's meta distance, which effectively orders meta-annotations before annotations that are declared directly on the underlying element.

      参数:
      annotationType - the annotation type to find
      containerType - the type of the container that holds the annotations
      sortByReversedMetaDistance - true if the results should be sorted in reversed order based on each annotation's meta distance
      返回:
      the set of all merged repeatable MergedAnnotation found, or an empty set if none were found
      另请参阅:

    • reversedMetaDistance

      private static Comparator<MergedAnnotation<Annotation>> reversedMetaDistance()