InitializationParameterHolder


1   // Copyright 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.web;
16  
17  import java.util.List  ;
18  
19  /**
20   * Defines methods for accessing initialization parameters.
21   * 
22   * @author Howard M. Lewis Ship
23   * @since 4.0
24   */
25  public interface InitializationParameterHolder
26  {
27      /**
28       * Returns a sorted list of the names of all initialization parameters (which may be the empty
29       * list).
30       * 
31       * @return List of String
32       */
33  
34      public List   getInitParameterNames();
35  
36      /**
37       * Returns the value of the named parameter, or null if the reciever does not have such a
38       * parameter.
39       * 
40       * @param name
41       *            the name of the parameter to retrieve
42       * @return the corresponding value, or null
43       */
44  
45      public String   getInitParameterValue(String   name);
46  }

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