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Java > Open Source Codes > javax > lang > model > element > AnnotationValue


1 /*
2  * @(#)AnnotationValue.java 1.4 06/07/31
3  *
4  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
5  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6  */
7
8 package javax.lang.model.element;
9
10
11 import java.util.List JavaDoc;
12 import javax.lang.model.type.*;
13
14 /**
15  * Represents a value of an annotation type element.
16  * A value is of one of the following types:
17  * <ul><li> a wrapper class (such as {@link Integer}) for a primitive type
18  * <li> {@code String}
19  * <li> {@code TypeMirror}
20  * <li> {@code VariableElement} (representing an enum constant)
21  * <li> {@code AnnotationMirror}
22  * <li> {@code List<? extends AnnotationValue>}
23  * (representing the elements, in declared order, if the value is an array)
24  * </ul>
25  *
26  * @author Joseph D. Darcy
27  * @author Scott Seligman
28  * @author Peter von der Ah&eacute;
29  * @version 1.4 06/07/31
30  * @since 1.6
31  */
32 public interface AnnotationValue {
33
34     /**
35      * Returns the value.
36      *
37      * @return the value
38      */
39     Object JavaDoc getValue();
40
41     /**
42      * Returns a string representation of this value.
43      * This is returned in a form suitable for representing this value
44      * in the source code of an annotation.
45      *
46      * @return a string representation of this value
47      */
48     String JavaDoc toString();
49
50     /**
51      * Applies a visitor to this value.
52      *
53      * @param <R> the return type of the visitor's methods
54      * @param <P> the type of the additional parameter to the visitor's methods
55      * @param v the visitor operating on this value
56      * @param p additional parameter to the visitor
57      * @return a visitor-specified result
58      */
59     <R, P> R accept(AnnotationValueVisitor<R, P> v, P p);
60 }
61
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