程序包 cn.taketoday.core.annotation

类 AnnotationsScanner

java.lang.Object

cn.taketoday.core.annotation.AnnotationsScanner

abstract class AnnotationsScanner
extends Object

Scanner to search for relevant annotations in the annotation hierarchy of an AnnotatedElement.

从以下版本开始:

4.0

作者:

Phillip Webb, Sam Brannen, Harry Yang

另请参阅:

• AnnotationsProcessor

字段概要

字段

修饰符和类型	字段	说明
private static final Map<Class<?>,Method[]>	baseTypeMethodsCache
private static final Map<AnnotatedElement,Annotation[]>	declaredAnnotationCache
private static final Annotation[]	NO_ANNOTATIONS
private static final Method[]	NO_METHODS

构造器概要

构造器

限定符	构造器	说明
private	AnnotationsScanner()

方法概要

修饰符和类型	方法	说明
(专用程序包) static void	clearCache()
private static <C> Method[]	getBaseTypeMethods(C context, Class<?> baseType)
(专用程序包) static <A extends Annotation> A	getDeclaredAnnotation(AnnotatedElement source, Class<A> annotationType)
(专用程序包) static Annotation[]	getDeclaredAnnotations(AnnotatedElement source, boolean defensive)
(专用程序包) static boolean	hasPlainJavaAnnotationsOnly(Class<?> type)
(专用程序包) static boolean	hasPlainJavaAnnotationsOnly(Object annotatedElement)
private static boolean	hasSameGenericTypeParameters(Method rootMethod, Method candidateMethod, Class<?>[] rootParameterTypes)
private static boolean	hasSameParameterTypes(Method rootMethod, Method candidateMethod)
private static boolean	isIgnorable(Class<?> annotationType)
(专用程序包) static boolean	isKnownEmpty(AnnotatedElement source, MergedAnnotations.SearchStrategy searchStrategy, Predicate<Class<?>> searchEnclosingClass)
private static boolean	isOverride(Method rootMethod, Method candidateMethod)
private static boolean	isWithoutHierarchy(AnnotatedElement source, MergedAnnotations.SearchStrategy searchStrategy, Predicate<Class<?>> searchEnclosingClass)
private static <C, R> R	process(C context, AnnotatedElement source, MergedAnnotations.SearchStrategy searchStrategy, Predicate<Class<?>> searchEnclosingClass, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processClass(C context, Class<?> source, MergedAnnotations.SearchStrategy searchStrategy, Predicate<Class<?>> searchEnclosingClass, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processClassHierarchy(C context, int[] aggregateIndex, Class<?> source, AnnotationsProcessor<C,R> processor, boolean includeInterfaces, Predicate<Class<?>> searchEnclosingClass)
private static <C, R> R	processClassHierarchy(C context, Class<?> source, AnnotationsProcessor<C,R> processor, boolean includeInterfaces, Predicate<Class<?>> searchEnclosingClass)
private static <C, R> R	processClassInheritedAnnotations(C context, Class<?> source, MergedAnnotations.SearchStrategy searchStrategy, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processElement(C context, AnnotatedElement source, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processMethod(C context, Method source, MergedAnnotations.SearchStrategy searchStrategy, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processMethodAnnotations(C context, int aggregateIndex, Method source, AnnotationsProcessor<C,R> processor)
private static <C, R> R	processMethodHierarchy(C context, int[] aggregateIndex, Class<?> sourceClass, AnnotationsProcessor<C,R> processor, Method rootMethod, boolean includeInterfaces)
private static <C, R> R	processMethodInheritedAnnotations(C context, Method source, AnnotationsProcessor<C,R> processor)
(专用程序包) static <C, R> R	scan(C context, AnnotatedElement source, MergedAnnotations.SearchStrategy searchStrategy, Predicate<Class<?>> searchEnclosingClass, AnnotationsProcessor<C,R> processor)	Scan the hierarchy of the specified element for relevant annotations and call the processor as required.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

NO_ANNOTATIONS

private static final Annotation[] NO_ANNOTATIONS

NO_METHODS

private static final Method[] NO_METHODS

declaredAnnotationCache

private static final Map<AnnotatedElement,Annotation[]> declaredAnnotationCache

baseTypeMethodsCache

private static final Map<Class<?>,Method[]> baseTypeMethodsCache

构造器详细资料

AnnotationsScanner

private AnnotationsScanner()

方法详细资料

scan

@Nullable
static <C,
R> R scan(C context,
 AnnotatedElement source,
 MergedAnnotations.SearchStrategy searchStrategy,
 Predicate<Class<?>> searchEnclosingClass,
 AnnotationsProcessor<C,R> processor)

Scan the hierarchy of the specified element for relevant annotations and call the processor as required.

参数:

context - an optional context object that will be passed back to the processor

source - the source element to scan

searchStrategy - the search strategy to use

searchEnclosingClass - a predicate which evaluates to true if a search should be performed on the enclosing class of the class supplied to the predicate

processor - the processor that receives the annotations

返回:

the result of AnnotationsProcessor.finish(Object)

process

@Nullable
private static <C,
R> R process(C context,
 AnnotatedElement source,
 MergedAnnotations.SearchStrategy searchStrategy,
 Predicate<Class<?>> searchEnclosingClass,
 AnnotationsProcessor<C,R> processor)

processClass

@Nullable
private static <C,
R> R processClass(C context,
 Class<?> source,
 MergedAnnotations.SearchStrategy searchStrategy,
 Predicate<Class<?>> searchEnclosingClass,
 AnnotationsProcessor<C,R> processor)

processClassInheritedAnnotations

@Nullable
private static <C,
R> R processClassInheritedAnnotations(C context,
 Class<?> source,
 MergedAnnotations.SearchStrategy searchStrategy,
 AnnotationsProcessor<C,R> processor)

processClassHierarchy

@Nullable
private static <C,
R> R processClassHierarchy(C context,
 Class<?> source,
 AnnotationsProcessor<C,R> processor,
 boolean includeInterfaces,
 Predicate<Class<?>> searchEnclosingClass)

processClassHierarchy

@Nullable
private static <C,
R> R processClassHierarchy(C context,
 int[] aggregateIndex,
 Class<?> source,
 AnnotationsProcessor<C,R> processor,
 boolean includeInterfaces,
 Predicate<Class<?>> searchEnclosingClass)

processMethod

@Nullable
private static <C,
R> R processMethod(C context,
 Method source,
 MergedAnnotations.SearchStrategy searchStrategy,
 AnnotationsProcessor<C,R> processor)

processMethodInheritedAnnotations

@Nullable
private static <C,
R> R processMethodInheritedAnnotations(C context,
 Method source,
 AnnotationsProcessor<C,R> processor)

processMethodHierarchy

@Nullable
private static <C,
R> R processMethodHierarchy(C context,
 int[] aggregateIndex,
 Class<?> sourceClass,
 AnnotationsProcessor<C,R> processor,
 Method rootMethod,
 boolean includeInterfaces)

getBaseTypeMethods

private static <C> Method[] getBaseTypeMethods(C context,
 Class<?> baseType)

isOverride

private static boolean isOverride(Method rootMethod,
 Method candidateMethod)

hasSameParameterTypes

private static boolean hasSameParameterTypes(Method rootMethod,
 Method candidateMethod)

hasSameGenericTypeParameters

private static boolean hasSameGenericTypeParameters(Method rootMethod,
 Method candidateMethod,
 Class<?>[] rootParameterTypes)

processMethodAnnotations

@Nullable
private static <C,
R> R processMethodAnnotations(C context,
 int aggregateIndex,
 Method source,
 AnnotationsProcessor<C,R> processor)

processElement

@Nullable
private static <C,
R> R processElement(C context,
 AnnotatedElement source,
 AnnotationsProcessor<C,R> processor)

getDeclaredAnnotation

@Nullable
static <A extends Annotation> A getDeclaredAnnotation(AnnotatedElement source,
 Class<A> annotationType)

getDeclaredAnnotations

static Annotation[] getDeclaredAnnotations(AnnotatedElement source,
 boolean defensive)

isIgnorable

private static boolean isIgnorable(Class<?> annotationType)

isKnownEmpty

static boolean isKnownEmpty(AnnotatedElement source,
 MergedAnnotations.SearchStrategy searchStrategy,
 Predicate<Class<?>> searchEnclosingClass)

hasPlainJavaAnnotationsOnly

static boolean hasPlainJavaAnnotationsOnly(@Nullable
 Object annotatedElement)

hasPlainJavaAnnotationsOnly

static boolean hasPlainJavaAnnotationsOnly(Class<?> type)

isWithoutHierarchy

private static boolean isWithoutHierarchy(AnnotatedElement source,
 MergedAnnotations.SearchStrategy searchStrategy,
 Predicate<Class<?>> searchEnclosingClass)

clearCache

static void clearCache()