jdk8-mips64-public/langtools: src/share/classes/javax/lang/model/element/AnnotationValue.java@c75be5bc5283

     1 /*

     2  * Copyright (c) 2005, 2012, 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

     6  * under the terms of the GNU General Public License version 2 only, as

     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

    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  */

    26 package javax.lang.model.element;

    28 /**

    29  * Represents a value of an annotation type element.

    30  * A value is of one of the following types:

    31  * <ul><li> a wrapper class (such as {@link Integer}) for a primitive type

    32  *     <li> {@code String}

    33  *     <li> {@code TypeMirror}

    34  *     <li> {@code VariableElement} (representing an enum constant)

    35  *     <li> {@code AnnotationMirror}

    36  *     <li> {@code List<? extends AnnotationValue>}

    37  *              (representing the elements, in declared order, if the value is an array)

    38  * </ul>

    39  *

    40  * @author Joseph D. Darcy

    41  * @author Scott Seligman

    42  * @author Peter von der Ah&eacute;

    43  * @since 1.6

    44  */

    45 public interface AnnotationValue {

    47     /**

    48      * Returns the value.

    49      *

    50      * @return the value

    51      */

    52     Object getValue();

    54     /**

    55      * Returns a string representation of this value.

    56      * This is returned in a form suitable for representing this value

    57      * in the source code of an annotation.

    58      *

    59      * @return a string representation of this value

    60      */

    61     String toString();

    63     /**

    64      * Applies a visitor to this value.

    65      *

    66      * @param <R> the return type of the visitor's methods

    67      * @param <P> the type of the additional parameter to the visitor's methods

    68      * @param v   the visitor operating on this value

    69      * @param p   additional parameter to the visitor

    70      * @return a visitor-specified result

    71      */

    72     <R, P> R accept(AnnotationValueVisitor<R, P> v, P p);

    73 }

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