1 /* 2 * Copyright (C) 2009 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.inject; 18 19 /** 20 * Injects dependencies into the fields and methods on instances of type {@code T}. Ignores the 21 * presence or absence of an injectable constructor. 22 * 23 * @param <T> type to inject members of 24 * @author crazybob@google.com (Bob Lee) 25 * @author jessewilson@google.com (Jesse Wilson) 26 * @since 2.0 27 */ 28 public interface MembersInjector<T> { 29 30 /** 31 * Injects dependencies into the fields and methods of {@code instance}. Ignores the presence or 32 * absence of an injectable constructor. 33 * 34 * <p>Whenever Guice creates an instance, it performs this injection automatically (after first 35 * performing constructor injection), so if you're able to let Guice create all your objects for 36 * you, you'll never need to use this method. 37 * 38 * @param instance to inject members on. May be {@code null}. 39 */ injectMembers(T instance)40 void injectMembers(T instance); 41 } 42