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src/java.base/share/classes/java/lang/reflect/AnnotatedType.java

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   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.reflect;
  27 


  28 /**
  29  * {@code AnnotatedType} represents the potentially annotated use of a type in
  30  * the program currently running in this VM. The use may be of any type in the
  31  * Java programming language, including an array type, a parameterized type, a
  32  * type variable, or a wildcard type.
  33  *




  34  * @since 1.8
  35  */
  36 public interface AnnotatedType extends AnnotatedElement {
  37 
  38     /**
  39      * Returns the potentially annotated type that this type is a member of, if
  40      * this type represents a nested type. For example, if this type is
  41      * {@code @TA O<T>.I<S>}, return a representation of {@code @TA O<T>}.
  42      *
  43      * <p>Returns {@code null} if this {@code AnnotatedType} represents a
  44      *     top-level type, or a local or anonymous class, or a primitive type, or
  45      *     void.
  46      *
  47      * <p>Returns {@code null} if this {@code AnnotatedType} is an instance of
  48      *     {@code AnnotatedArrayType}, {@code AnnotatedTypeVariable}, or
  49      *     {@code AnnotatedWildcardType}.
  50      *
  51      * @implSpec
  52      * This default implementation returns {@code null} and performs no other
  53      * action.


  55      * @return an {@code AnnotatedType} object representing the potentially
  56      *     annotated type that this type is a member of, or {@code null}
  57      * @throws TypeNotPresentException if the owner type
  58      *     refers to a non-existent type declaration
  59      * @throws MalformedParameterizedTypeException if the owner type
  60      *     refers to a parameterized type that cannot be instantiated
  61      *     for any reason
  62      *
  63      * @since 9
  64      */
  65     default AnnotatedType getAnnotatedOwnerType() {
  66         return null;
  67     }
  68 
  69     /**
  70      * Returns the underlying type that this annotated type represents.
  71      *
  72      * @return the type this annotated type represents
  73      */
  74     public Type getType();


























  75 }


   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.lang.reflect;
  27 
  28 import java.lang.annotation.Annotation;
  29 
  30 /**
  31  * {@code AnnotatedType} represents the potentially annotated use of a type in
  32  * the program currently running in this VM. The use may be of any type in the
  33  * Java programming language, including an array type, a parameterized type, a
  34  * type variable, or a wildcard type.
  35  *
  36  * Note that any annotations returned by methods on this
  37  * interface are <em>type annotations</em> (JLS {@jls 9.7.4}) as the
  38  * entity being potentially annotated is a type.
  39  *
  40  * @since 1.8
  41  */
  42 public interface AnnotatedType extends AnnotatedElement {
  43 
  44     /**
  45      * Returns the potentially annotated type that this type is a member of, if
  46      * this type represents a nested type. For example, if this type is
  47      * {@code @TA O<T>.I<S>}, return a representation of {@code @TA O<T>}.
  48      *
  49      * <p>Returns {@code null} if this {@code AnnotatedType} represents a
  50      *     top-level type, or a local or anonymous class, or a primitive type, or
  51      *     void.
  52      *
  53      * <p>Returns {@code null} if this {@code AnnotatedType} is an instance of
  54      *     {@code AnnotatedArrayType}, {@code AnnotatedTypeVariable}, or
  55      *     {@code AnnotatedWildcardType}.
  56      *
  57      * @implSpec
  58      * This default implementation returns {@code null} and performs no other
  59      * action.


  61      * @return an {@code AnnotatedType} object representing the potentially
  62      *     annotated type that this type is a member of, or {@code null}
  63      * @throws TypeNotPresentException if the owner type
  64      *     refers to a non-existent type declaration
  65      * @throws MalformedParameterizedTypeException if the owner type
  66      *     refers to a parameterized type that cannot be instantiated
  67      *     for any reason
  68      *
  69      * @since 9
  70      */
  71     default AnnotatedType getAnnotatedOwnerType() {
  72         return null;
  73     }
  74 
  75     /**
  76      * Returns the underlying type that this annotated type represents.
  77      *
  78      * @return the type this annotated type represents
  79      */
  80     public Type getType();
  81 
  82     /**
  83      * {@inheritDoc}
  84      * <p>Note that any annotation returned by this method is a type
  85      * annotation.
  86      *
  87      * @throws NullPointerException {@inheritDoc}
  88      */
  89     @Override
  90     <T extends Annotation> T getAnnotation(Class<T> annotationClass);
  91 
  92     /**
  93      * {@inheritDoc}
  94      * <p>Note that any annotations returned by this method are type
  95      * annotations.
  96      */
  97     @Override
  98     Annotation[] getAnnotations();
  99 
 100     /**
 101      * {@inheritDoc}
 102      * <p>Note that any annotations returned by this method are type
 103      * annotations.
 104      */
 105     @Override
 106     Annotation[] getDeclaredAnnotations();
 107 }
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