1 /** 2 * Copyright (C) 2010 the original author or authors. 3 * See the notice.md file distributed with this work for additional 4 * information regarding copyright ownership. 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 19 package com.beust.jcommander; 20 21 import java.lang.annotation.Retention; 22 import java.lang.annotation.Target; 23 24 import static java.lang.annotation.ElementType.FIELD; 25 26 /** 27 * <p>When applied to a field all of its child fields annotated 28 * with {@link Parameter} will be included during arguments 29 * parsing.</p> 30 * 31 * <p>Mainly useful when creating complex command based CLI interfaces, 32 * where several commands can share a set of arguments, but using 33 * object inheritance is not enough, due to no-multiple-inheritance 34 * restriction. Using {@link ParametersDelegate} any number of 35 * command sets can be shared by using composition pattern.</p> 36 * 37 * <p>Delegations can be chained (nested).</p> 38 * 39 * @author rodionmoiseev 40 */ 41 @Retention(java.lang.annotation.RetentionPolicy.RUNTIME) 42 @Target({ FIELD }) 43 public @interface ParametersDelegate { 44 } 45