1 /*
   2  * Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
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   7  * published by the Free Software Foundation.  Oracle designates this
   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
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  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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  23  * questions.
  24  */
  25 
  26 package java.lang.reflect;
  27 
  28 /**
  29  * {@code AnnotatedWildcardType} represents the potentially annotated use of a
  30  * wildcard type argument, whose upper or lower bounds may themselves represent
  31  * annotated uses of types.
  32  *
  33  * @jls 4.5.1 Type Arguments of Parameterized Types
  34  * @since 1.8
  35  */
  36 public interface AnnotatedWildcardType extends AnnotatedType {
  37 
  38     /**
  39      * Returns the potentially annotated lower bounds of this wildcard type.
  40      * If no lower bound is explicitly declared, the lower bound is the
  41      * type of null. In this case, a zero length array is returned.
  42      *
  43      * @return the potentially annotated lower bounds of this wildcard type or
  44      * an empty array if no lower bound is explicitly declared.
  45      * @see WildcardType#getLowerBounds()
  46      */
  47     AnnotatedType[] getAnnotatedLowerBounds();
  48 
  49     /**
  50      * Returns the potentially annotated upper bounds of this wildcard type.
  51      * If no upper bound is explicitly declared, the upper bound is
  52      * unannotated {@code Object}
  53      *
  54      * @return the potentially annotated upper bounds of this wildcard type
  55      * @see WildcardType#getUpperBounds()
  56      */
  57     AnnotatedType[] getAnnotatedUpperBounds();
  58 
  59     /**
  60      * Returns the potentially annotated type that this type is a member of, if
  61      * this type represents a nested type. For example, if this type is
  62      * {@code @TA O<T>.I<S>}, return a representation of {@code @TA O<T>}.
  63      *
  64      * <p>Returns {@code null} for an {@code AnnotatedType} that is an instance
  65      *     of {@code AnnotatedWildcardType}.
  66      *
  67      * @return {@code null}
  68      *
  69      * @since 9
  70      */
  71     @Override
  72     AnnotatedType getAnnotatedOwnerType();
  73 }