FilterSupport.java

/*
 * This file is part of "SnipSnap Radeox Rendering Engine".
 *
 * Copyright (c) 2002 Stephan J. Schmidt, Matthias L. Jugel
 * All Rights Reserved.
 *
 * Please visit http://radeox.org/ for updates and contact.
 *
 * --LICENSE NOTICE--
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * --LICENSE NOTICE--

 */

package org.radeox.filter;

import org.radeox.api.engine.context.InitialRenderContext;

/*
 * Abstract Filter Class that supplies the Filter interface. Concrete Filters
 * should inherit from Filter. Filters transform a String (usually snip content)
 * to another String (usually HTML). @author stephan @team sonicteam
 * 
 * @version $Id: FilterSupport.java 7707 2006-04-12 17:30:19Z
 *          ian@caret.cam.ac.uk $
 */

public abstract class FilterSupport implements Filter
{
	protected InitialRenderContext initialContext;

	public FilterSupport()
	{
	}

	public String[] replaces()
	{
		return FilterPipe.NO_REPLACES;
	}

	public String[] before()
	{
		return FilterPipe.EMPTY_BEFORE;
	}

	public void setInitialContext(InitialRenderContext context)
	{
		this.initialContext = context;
	}

	public String getDescription()
	{
		return "";
	}
}