AbstractSwingWebRenderContext.java :  » Web-Framework » swingweb » org » onemind » swingweb » render » Java Open Source

/*
 * Copyright (C) 2004 TiongHiang Lee
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not,  write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Email: thlee@onemindsoft.org
 */

package org.onemind.swingweb.render;

import org.onemind.awtbridge.BridgeContext;
import org.onemind.awtbridge.render.RenderDelegate;
import org.onemind.commons.java.xml.digest.SaxDigesterHandler;
import org.onemind.swingweb.SwingWebContext;
import org.onemind.swingweb.util.DelegateResolver;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
/**
 *An abstract swing web render context
 * @author TiongHiang Lee (thlee@onemindsoft.org)
 * 
 */
public abstract class AbstractSwingWebRenderContext implements SwingWebRenderContext
{

    /** the delegates * */
    private DelegateResolver _delegateResolver = new DelegateResolver("renderdelegates");

    /** the context **/
    private SwingWebContext _context;

    /**
     * Constructor
     * @param context the context
     */
    protected AbstractSwingWebRenderContext(SwingWebContext context)
    {
        _context = context;
    }

    /** 
     * {@inheritDoc}
     */
    public void startDigest(SaxDigesterHandler handler, Attributes attrs)
    {
        handler.addSubDigester(_delegateResolver);
    }

    /** 
     * {@inheritDoc}
     */
    public final BridgeContext getContext()
    {
        return _context;
    }

    /**
     * {@inheritDoc}
     */
    public void endDigest(SaxDigesterHandler handler) throws SAXException
    {
    }

    /**
     * Resolve delegate
     * @param comClass the component class
     * @return the delegate for the comObject
     */
    public RenderDelegate resolveDelegate(Class comClass)
    {
        Object obj = _delegateResolver.resolve(comClass);
        return (RenderDelegate) obj;
    }

    /** 
     * {@inheritDoc}
     */
    public void characters(SaxDigesterHandler handler, char[] chars, int offset, int length) throws SAXException
    {
        //do nothing
    }
}