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      1 /*
      2  * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/protocol/HttpContext.java $
      3  * $Revision: 558111 $
      4  * $Date: 2007-07-20 13:01:50 -0700 (Fri, 20 Jul 2007) $
      5  *
      6  * ====================================================================
      7  * Licensed to the Apache Software Foundation (ASF) under one
      8  * or more contributor license agreements.  See the NOTICE file
      9  * distributed with this work for additional information
     10  * regarding copyright ownership.  The ASF licenses this file
     11  * to you under the Apache License, Version 2.0 (the
     12  * "License"); you may not use this file except in compliance
     13  * with the License.  You may obtain a copy of the License at
     14  *
     15  *   http://www.apache.org/licenses/LICENSE-2.0
     16  *
     17  * Unless required by applicable law or agreed to in writing,
     18  * software distributed under the License is distributed on an
     19  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     20  * KIND, either express or implied.  See the License for the
     21  * specific language governing permissions and limitations
     22  * under the License.
     23  * ====================================================================
     24  *
     25  * This software consists of voluntary contributions made by many
     26  * individuals on behalf of the Apache Software Foundation.  For more
     27  * information on the Apache Software Foundation, please see
     28  * <http://www.apache.org/>.
     29  *
     30  */
     31 
     32 package org.apache.http.protocol;
     33 
     34 /**
     35  * A context for executing a request.
     36  * The context is used to tie together the request, the response,
     37  * and optional application data. It is also used for internal data.
     38  * Attribute names starting with the prefix "http." are
     39  * {@link #RESERVED_PREFIX reserved} for internal data.
     40  *
     41  * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
     42  *
     43  * @version $Revision: 558111 $
     44  *
     45  * @since 4.0
     46  */
     47 public interface HttpContext {
     48 
     49     /** The prefix reserved for use by HTTP components. "http." */
     50     public static final String RESERVED_PREFIX  = "http.";
     51 
     52     Object getAttribute(String id);
     53 
     54     void setAttribute(String id, Object obj);
     55 
     56     Object removeAttribute(String id);
     57 
     58 }
     59