1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/javax/lang/model/element/UnknownElementException.java Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,83 @@
1.4 +/*
1.5 + * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Sun designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Sun in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.25 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.26 + * have any questions.
1.27 + */
1.28 +
1.29 +package javax.lang.model.element;
1.30 +
1.31 +/**
1.32 + * Indicates that an unknown kind of element was encountered. This
1.33 + * can occur if the language evolves and new kinds of elements are
1.34 + * added to the {@code Element} hierarchy. May be thrown by an
1.35 + * {@linkplain ElementVisitor element visitor} to indicate that the
1.36 + * visitor was created for a prior version of the language.
1.37 + *
1.38 + * @author Joseph D. Darcy
1.39 + * @author Scott Seligman
1.40 + * @author Peter von der Ahé
1.41 + * @see ElementVisitor#visitUnknown
1.42 + * @since 1.6
1.43 + */
1.44 +public class UnknownElementException extends RuntimeException {
1.45 +
1.46 + private static final long serialVersionUID = 269L;
1.47 +
1.48 + private transient Element element;
1.49 + private transient Object parameter;
1.50 +
1.51 + /**
1.52 + * Creates a new {@code UnknownElementException}. The {@code p}
1.53 + * parameter may be used to pass in an additional argument with
1.54 + * information about the context in which the unknown element was
1.55 + * encountered; for example, the visit methods of {@link
1.56 + * ElementVisitor} may pass in their additional parameter.
1.57 + *
1.58 + * @param e the unknown element, may be {@code null}
1.59 + * @param p an additional parameter, may be {@code null}
1.60 + */
1.61 + public UnknownElementException(Element e, Object p) {
1.62 + super("Unknown element: " + e);
1.63 + element = e;
1.64 + this.parameter = p;
1.65 + }
1.66 +
1.67 + /**
1.68 + * Returns the unknown element.
1.69 + * The value may be unavailable if this exception has been
1.70 + * serialized and then read back in.
1.71 + *
1.72 + * @return the unknown element, or {@code null} if unavailable
1.73 + */
1.74 + public Element getUnknownElement() {
1.75 + return element;
1.76 + }
1.77 +
1.78 + /**
1.79 + * Returns the additional argument.
1.80 + *
1.81 + * @return the additional argument
1.82 + */
1.83 + public Object getArgument() {
1.84 + return parameter;
1.85 + }
1.86 +}
