Java example source code file (UnknownAnnotationValueException.java)

This example Java source code file (UnknownAnnotationValueException.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

annotationvalue, object, unknownannotationvalueexception, unknownentityexception

The UnknownAnnotationValueException.java Java example source code

/*
 * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package javax.lang.model.element;

import javax.lang.model.UnknownEntityException;

/**
 * Indicates that an unknown kind of annotation value was encountered.
 * This can occur if the language evolves and new kinds of annotation
 * values can be stored in an annotation.  May be thrown by an
 * {@linkplain AnnotationValueVisitor annotation value visitor} to
 * indicate that the visitor was created for a prior version of the
 * language.
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @author Peter von der Ahé
 * @see AnnotationValueVisitor#visitUnknown
 * @since 1.6
 */
public class UnknownAnnotationValueException extends UnknownEntityException {

    private static final long serialVersionUID = 269L;

    private transient AnnotationValue av;
    private transient Object parameter;

    /**
     * Creates a new {@code UnknownAnnotationValueException}.  The
     * {@code p} parameter may be used to pass in an additional
     * argument with information about the context in which the
     * unknown annotation value was encountered; for example, the
     * visit methods of {@link AnnotationValueVisitor} may pass in
     * their additional parameter.
     *
     * @param av the unknown annotation value, may be {@code null}
     * @param p an additional parameter, may be {@code null}
     */
    public UnknownAnnotationValueException(AnnotationValue av, Object p) {
        super("Unknown annotation value: " + av);
        this.av = av;
        this.parameter = p;
    }

    /**
     * Returns the unknown annotation value.
     * The value may be unavailable if this exception has been
     * serialized and then read back in.
     *
     * @return the unknown element, or {@code null} if unavailable
     */
    public AnnotationValue getUnknownAnnotationValue() {
        return av;
    }

    /**
     * Returns the additional argument.
     *
     * @return the additional argument
     */
    public Object getArgument() {
        return parameter;
    }
}