https://github.com/google/guice/guice: Guice is a lightweight dependency injection framework for Java 6 and above (Google, Inc.) 
/*
 * Copyright (C) 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.inject;


Injects dependencies into the fields and methods on instances of type T. Ignores the presence or absence of an injectable constructor. 
Author:crazybob@google.com (Bob Lee), jessewilson@google.com (Jesse Wilson)
Type parameters:
  • <T> – type to inject members of
Since:2.0
/**
 * Injects dependencies into the fields and methods on instances of type {@code T}. Ignores the
 * presence or absence of an injectable constructor.
 *
 * @param <T> type to inject members of
 * @author crazybob@google.com (Bob Lee)
 * @author jessewilson@google.com (Jesse Wilson)
 * @since 2.0
 */
public interface MembersInjector<T> {

  
Injects dependencies into the fields and methods of instance. Ignores the presence or absence of an injectable constructor. 
Whenever Guice creates an instance, it performs this injection automatically (after first
performing constructor injection), so if you're able to let Guice create all your objects for
you, you'll never need to use this method.

Params:
  • instance – to inject members on. May be null.
/**
   * Injects dependencies into the fields and methods of {@code instance}. Ignores the presence or
   * absence of an injectable constructor.
   *
   * <p>Whenever Guice creates an instance, it performs this injection automatically (after first
   * performing constructor injection), so if you're able to let Guice create all your objects for
   * you, you'll never need to use this method.
   *
   * @param instance to inject members on. May be {@code null}.
   */
  void injectMembers(T instance);
}