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    1
    2
    3   /*
    4    * The contents of this file are subject to the terms
    5    * of the Common Development and Distribution License
    6    * (the "License").  You may not use this file except
    7    * in compliance with the License.
    8    *
    9    * You can obtain a copy of the license at
    10   * glassfish/bootstrap/legal/CDDLv1.0.txt or
    11   * https://glassfish.dev.java.net/public/CDDLv1.0.html.
    12   * See the License for the specific language governing
    13   * permissions and limitations under the License.
    14   *
    15   * When distributing Covered Code, include this CDDL
    16   * HEADER in each file and include the License file at
    17   * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable,
    18   * add the following below this CDDL HEADER, with the
    19   * fields enclosed by brackets "[]" replaced with your
    20   * own identifying information: Portions Copyright [yyyy]
    21   * [name of copyright owner]
    22   *
    23   * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
    24   *
    25   * Portions Copyright Apache Software Foundation.
    26   */
    27
    28  package javax.servlet;
    29
    30  import java.io.IOException;
    31
    32      /**
    33      * A FilterChain is an object provided by the servlet container to the developer
    34      * giving a view into the invocation chain of a filtered request for a resource. Filters
    35      * use the FilterChain to invoke the next filter in the chain, or if the calling filter
    36      * is the last filter in the chain, to invoke the resource at the end of the chain.
    37      *
    38      * @see Filter
    39      * @since Servlet 2.3
    40      **/
    41
    42  public interface FilterChain {
    43
    44  	/**
    45  	* Causes the next filter in the chain to be invoked, or if the calling filter is the last filter
    46  	* in the chain, causes the resource at the end of the chain to be invoked.
    47  	*
    48  	* @param request the request to pass along the chain.
    49  	* @param response the response to pass along the chain.
    50  	*
    51  	* @since 2.3
    52  	*/
    53
    54      public void doFilter ( ServletRequest request, ServletResponse response ) throws IOException, ServletException;
    55
    56  }
    57