Rule


1   /*
2    * Copyright 2000,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.webapp.balancer;
17  
18  import javax.servlet.http.HttpServletRequest  ;
19  
20  
21  /**
22   * The Rule interface is implemented by
23   * load balancing rules.
24   *
25   * @author Yoav Shapira
26   */
27  public interface Rule {
28      /**
29       * Determine if the given request
30       * matches the rule.
31       *
32       * @param request The request
33       * @return boolean True if matches, will be redirected.
34       */
35      boolean matches(HttpServletRequest   request);
36  
37      /**
38       * Returns the redirect URL for
39       * requests that match this rule.
40       *
41       * @return The redirect URL
42       */
43      String   getRedirectUrl();
44  }
45  
46  
47  // End of file: Rule.java
48

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