/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package javax.servlet;

import java.io.IOException;

    /**
    * A FilterChain is an object provided by the servlet container to the developer
    * giving a view into the invocation chain of a filtered request for a resource. Filters
    * use the FilterChain to invoke the next filter in the chain, or if the calling filter
    * is the last filter in the chain, to invoke the resource at the end of the chain.
    *
    * @see Filter
    * @since Servlet 2.3
    **/

public interface FilterChain {
	
	/**
	* Causes the next filter in the chain to be invoked, or if the calling filter is the last filter
	* in the chain, causes the resource at the end of the chain to be invoked.
	*
	* @param request the request to pass along the chain.
	* @param response the response to pass along the chain.
	*
	* @since 2.3
	*/
	
    public void doFilter ( ServletRequest request, ServletResponse response ) throws IOException, ServletException;

}

