1 /* 2 * Copyright 2005-2009 Sun Microsystems, Inc. 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. Sun designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 22 * CA 95054 USA or visit www.sun.com if you need additional information or 23 * have any questions. 24 */ 25 26 package javax.lang.model.element; 27 28 import javax.lang.model.UnknownEntityException; 29 30 /** 31 * Indicates that an unknown kind of annotation value was encountered. 32 * This can occur if the language evolves and new kinds of annotation 33 * values can be stored in an annotation. May be thrown by an 34 * {@linkplain AnnotationValueVisitor annotation value visitor} to 35 * indicate that the visitor was created for a prior version of the 36 * language. 37 * 38 * @author Joseph D. Darcy 39 * @author Scott Seligman 40 * @author Peter von der Ahé 41 * @see AnnotationValueVisitor#visitUnknown 42 * @since 1.6 43 */ 44 public class UnknownAnnotationValueException extends UnknownEntityException { 45 46 private static final long serialVersionUID = 269L; 47 48 private transient AnnotationValue av; 49 private transient Object parameter; 50 51 /** 52 * Creates a new {@code UnknownAnnotationValueException}. The 53 * {@code p} parameter may be used to pass in an additional 54 * argument with information about the context in which the 55 * unknown annotation value was encountered; for example, the 56 * visit methods of {@link AnnotationValueVisitor} may pass in 57 * their additional parameter. 58 * 59 * @param av the unknown annotation value, may be {@code null} 60 * @param p an additional parameter, may be {@code null} 61 */ 62 public UnknownAnnotationValueException(AnnotationValue av, Object p) { 63 super("Unknown annotation value: " + av); 64 this.av = av; 65 this.parameter = p; 66 } 67 68 /** 69 * Returns the unknown annotation value. 70 * The value may be unavailable if this exception has been 71 * serialized and then read back in. 72 * 73 * @return the unknown element, or {@code null} if unavailable 74 */ 75 public AnnotationValue getUnknownAnnotationValue() { 76 return av; 77 } 78 79 /** 80 * Returns the additional argument. 81 * 82 * @return the additional argument 83 */ 84 public Object getArgument() { 85 return parameter; 86 } 87 }