| /* |
| * 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. |
| * |
| * @throws IOException if an I/O error occurs during the processing of the |
| * request |
| * @throws ServletException if the processing fails for any other reason |
| |
| * @since 2.3 |
| */ |
| public void doFilter(ServletRequest request, ServletResponse response) |
| throws IOException, ServletException; |
| |
| } |