001    /*
002     * Copyright 1999-2002,2004 The Apache Software Foundation.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     * 
008     *      http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.apache.commons.latka.http;
018    
019    import java.util.List;
020    
021    /**
022     * Manage a set of http request headers
023     *
024     * @author Morgan Delagrange
025     * @author dIon Gillard
026     * @version $Id: RequestHeaders.java 155424 2005-02-26 13:09:29Z dirkv $
027     */
028    public interface RequestHeaders {
029    
030      /**
031       * Add a header to the request
032       * @param headerName header name
033       * @param headerValue header value, or null for an empty value
034       */
035      void addHeader(String headerName, String headerValue);
036      
037      /**
038       * Return a list of all the headers for the request.
039       * Elements of the list are a String array with the
040       * headerName as the first value and the header value
041       * as the second (can be null).
042       * @return all headers for the request
043       */
044      List getHeaders();
045    
046    }