1 /* 2 * junixsocket 3 * 4 * Copyright 2009-2024 Christian Kohlschütter 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * 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, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.newsclub.net.unix.demo.rmi.services; 19 20 import java.io.IOException; 21 import java.rmi.Remote; 22 23 /** 24 * A very simple "hello world" service. 25 * 26 * @author Christian Kohlschütter 27 */ 28 public interface HelloWorld extends Remote { 29 /** 30 * Returns "Hello". 31 * 32 * @return "Hello" 33 * @throws IOException if the operation fails. 34 */ 35 String hello() throws IOException; 36 37 /** 38 * Returns "World" (or something else?). 39 * 40 * @return "World" (usually) 41 * @throws IOException if the operation fails. 42 */ 43 String world() throws IOException; 44 }