| /* gnu.java.beans.decoder.DummyHandler |
| Copyright (C) 2004 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.java.beans.decoder; |
| |
| import java.beans.ExceptionListener; |
| |
| import org.xml.sax.Attributes; |
| |
| /** An ElementHandler implementation that is used as an artificial root |
| * element. This avoids having to check for a null element. |
| * |
| * @author Robert Schuster |
| */ |
| class DummyHandler implements ElementHandler |
| { |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#start(org.xml.sax.Attributes, java.beans.ExceptionListener) |
| */ |
| public void start( |
| Attributes attributes, |
| ExceptionListener exceptionListener) |
| { |
| fail(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#end(java.beans.ExceptionListener) |
| */ |
| public void end(ExceptionListener exceptionListener) |
| { |
| fail(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#characters(char[], int, int) |
| */ |
| public void characters(char[] ch, int start, int length) |
| { |
| fail(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#isSubelementAllowed(java.lang.String) |
| */ |
| public boolean isSubelementAllowed(String subElementName) |
| { |
| return true; |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#instantiateClass(java.lang.String) |
| */ |
| public Class instantiateClass(String className) |
| throws ClassNotFoundException |
| { |
| fail(); |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#reportStatement(java.beans.ExceptionListener) |
| */ |
| public void notifyStatement(ExceptionListener exceptionListener) |
| { |
| // ignore |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#hasFailed() |
| */ |
| public boolean hasFailed() |
| { |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#getContext() |
| */ |
| public Context getContext() |
| { |
| return new DummyContext(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#contextFailed() |
| */ |
| public void notifyContextFailed() |
| { |
| fail(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#putObject(java.lang.String, java.lang.Object) |
| */ |
| public void putObject(String objectId, Object o) |
| { |
| fail(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.java.beans.decoder.ElementHandler#getObject(java.lang.String) |
| */ |
| public Object getObject(String objectId) |
| { |
| fail(); |
| return null; |
| } |
| |
| public ElementHandler getParent() |
| { |
| fail(); |
| return null; |
| } |
| |
| private void fail() |
| { |
| throw new InternalError("Invoking the DummyHandler is not expected" |
| + " - Please file a bug report at " |
| + " http://www.gnu.org/software/classpath/."); |
| } |
| } |