01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36:
37: package com.sun.xml.bind.v2.model.annotation;
38:
39: import java.lang.annotation.Annotation;
40:
41: /**
42: * Implemented by objects that can have annotations.
43: *
44: * @author Kohsuke Kawaguchi
45: */
46: public interface AnnotationSource {
47: /**
48: * Gets the value of the specified annotation from the given property.
49: *
50: * <p>
51: * When this method is used for a property that consists of a getter and setter,
52: * it returns the annotation on either of those methods. If both methods have
53: * the same annotation, it is an error.
54: *
55: * @return
56: * null if the annotation is not present.
57: */
58: <A extends Annotation> A readAnnotation(Class<A> annotationType);
59:
60: /**
61: * Returns true if the property has the specified annotation.
62: * <p>
63: * Short for <code>readAnnotation(annotationType)!=null</code>,
64: * but this method is typically faster.
65: */
66: boolean hasAnnotation(Class<? extends Annotation> annotationType);
67: }
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