It is now possible to use an annotation zero times, once, or, if the annotation's type is marked as more than once. When designing an annotation type, you must consider the cardinality of annotations of that type. See theĪnnotatedElement class specification for information on all of the available methods. Other methods were introduced in Java SE 8 that scan through the container annotation to return multiple annotations at once, such asĪnnotatedElement.getAnnotationsByType(Class). In this way, legacy code continues to work. If more than one annotation of the requested type is present, you can obtain them by first getting their container annotation. The behavior of the methods that return a single annotation, such asĪnnotatedElement.getAnnotation(Class), are unchanged in that they only return a single annotation if one annotation of the requested type is present.
There are several methods available in the Reflection API that can be used to retrieve annotations.
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