| /* |
| * Copyright (c) 2005, 2017, 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 element was encountered. This |
| * can occur if the language evolves and new kinds of elements are |
| * added to the {@code Element} hierarchy. May be thrown by an |
| * {@linkplain ElementVisitor element 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 ElementVisitor#visitUnknown |
| * @since 1.6 |
| */ |
| public class UnknownElementException extends UnknownEntityException { |
| |
| private static final long serialVersionUID = 269L; |
| |
| private transient Element element; |
| private transient Object parameter; |
| |
| /** |
| * Creates a new {@code UnknownElementException}. The {@code p} |
| * parameter may be used to pass in an additional argument with |
| * information about the context in which the unknown element was |
| * encountered; for example, the visit methods of {@link |
| * ElementVisitor} may pass in their additional parameter. |
| * |
| * @param e the unknown element, may be {@code null} |
| * @param p an additional parameter, may be {@code null} |
| */ |
| public UnknownElementException(Element e, Object p) { |
| super("Unknown element: " + e); |
| element = e; |
| this.parameter = p; |
| } |
| |
| /** |
| * Returns the unknown element. |
| * 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 Element getUnknownElement() { |
| return element; |
| } |
| |
| /** |
| * Returns the additional argument. |
| * |
| * @return the additional argument, or {@code null} if unavailable |
| */ |
| public Object getArgument() { |
| return parameter; |
| } |
| } |