CookieSource


1   // Copyright 2004, 2005 The Apache Software Foundation
2   //
3   // Licensed under the Apache License, Version 2.0 (the "License");
4   // you may not use this file except in compliance with the License.
5   // You may obtain a copy of the License at
6   //
7   //     http://www.apache.org/licenses/LICENSE-2.0
8   //
9   // Unless required by applicable law or agreed to in writing, software
10  // distributed under the License is distributed on an "AS IS" BASIS,
11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  // See the License for the specific language governing permissions and
13  // limitations under the License.
14  
15  package org.apache.tapestry.services;
16  
17  /**
18   * Used by other services to obtain cookie values for the current request.
19   * 
20   * @author Howard Lewis Ship
21   * @since 4.0
22   */
23  public interface CookieSource
24  {
25      /**
26       * Returns the value of the first cookie whose name matches. Returns null if no such cookie
27       * exists.
28       */
29      public String   readCookieValue(String   name);
30  
31      /**
32       * Creates or updates a cookie value. The value is stored permanently (no timeout, not session
33       * based). TODO: add suport for timeouts and session cookies.
34       */
35  
36      public void writeCookieValue(String   name, String   value);
37  
38      /**
39       * Removes a previously written cookie, by writing a new cookie with a maxAge of 0.
40       */
41  
42      public void removeCookieValue(String   name);
43  }

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