[jgb-cvs] jgb/src/java/core/jgb/handlers/swing NullTagHandler.java,NONE,1.1

[<fb...@us...>]

Update of /cvsroot/jgb/jgb/src/java/core/jgb/handlers/swing
In directory sc8-pr-cvs1:/tmp/cvs-serv13702/src/java/core/jgb/handlers/swing

Added Files:
	NullTagHandler.java 
Log Message:
* src/dtd/dtd.xml:
  Added reference to new null tag handler.
  Based on diff submitted by Steven Oglesby.

* src/java/tests/jgb/handlers/swing/TestNullTagHandler.java:
  Added new tag handler tests for passing null values around.
  Based on diff submitted by Steven Oglesby.

* src/java/tests/jgb/handlers/swing/AllTests.java:
  Added reference to TestNullTagHandler.
  Based on diff submitted by Steven Oglesby.  

* src/java/core/jgb/handlers/swing/NullTagHandler.java:
  Implemented tests.
  Based on diff submitted by Steven Oglesby.


--- NEW FILE: NullTagHandler.java ---
/*
 * Copyright (C) 2002, Francois Beausoleil
 *
 * This program 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 of the License, or any later
 * version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * You may contact the author of this software at: fb...@us...
 */

package jgb.handlers.swing;

import org.xml.sax.SAXException;

import java.util.Map;

public class NullTagHandler extends AbstractValueTagHandler {
    protected void enterElement(Map atts) throws SAXException {
        String className = (String) atts.get(ATTR_CLASS);

        try {
            Class clazz = Class.forName(className);
            updateContextParameters(clazz, null);
        } catch (ClassNotFoundException cnfe) {
            throwParsingException("Declared class could not found: " +
                    className, cnfe);
        }
    }

    protected void exitElement() throws SAXException {
    }
}