001// Copyright 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry.web; 016 017import java.util.List; 018 019/** 020 * Defines methods for accessing initialization parameters. 021 * 022 * @author Howard M. Lewis Ship 023 * @since 4.0 024 */ 025public interface InitializationParameterHolder 026{ 027 /** 028 * Returns a sorted list of the names of all initialization parameters (which may be the empty 029 * list). 030 * 031 * @return List of String 032 */ 033 034 public List getInitParameterNames(); 035 036 /** 037 * Returns the value of the named parameter, or null if the reciever does not have such a 038 * parameter. 039 * 040 * @param name 041 * the name of the parameter to retrieve 042 * @return the corresponding value, or null 043 */ 044 045 public String getInitParameterValue(String name); 046}