1 /***************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 package org.apache.mailet; 21 22 import java.util.Iterator; 23 24 /*** 25 * A mailet configuration object used by a mailet container to pass information 26 * to a mailet during initialization. 27 * <p> 28 * The configuration information contains initialization parameters, which are a set 29 * of name/value pairs, and a MailetContext object, which gives the mailet information 30 * about the server. 31 * 32 * @version 1.0.0, 24/04/1999 33 */ 34 public interface MailetConfig { 35 36 /*** 37 * Returns a String containing the value of the named initialization 38 * parameter, or null if the parameter does not exist. 39 * 40 * @param name - a String specifying the name of the initialization parameter 41 * @return a String containing the value of the initialization parameter 42 */ 43 String getInitParameter(String name); 44 45 /*** 46 * Returns the names of the mailet's initialization parameters as an 47 * Iterator of String objects, or an empty Iterator if the mailet has 48 * no initialization parameters. 49 * 50 * @return an Iterator of String objects containing the names of the mailet's 51 * initialization parameters 52 */ 53 Iterator getInitParameterNames(); 54 55 /*** 56 * Returns a reference to the MailetContext in which the mailet is 57 * executing. 58 * 59 * @return a MailetContext object, used by the mailet to interact with its 60 * mailet container 61 */ 62 MailetContext getMailetContext(); 63 64 /*** 65 * Returns the name of this mailet instance. The name may be provided via 66 * server administration, assigned in the application deployment descriptor, 67 * or for an unregistered (and thus unnamed) mailet instance it will be the 68 * mailet's class name. 69 * 70 * @return the name of the mailet instance 71 */ 72 String getMailetName(); 73 }