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/*
 * 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 {@code T}. Ignores the
 * presence or absence of an injectable constructor.
 *
 * @param  type to inject members of
 * @author [email protected] (Bob Lee)
 * @author [email protected] (Jesse Wilson)
 * @since 2.0
 */
public interface MembersInjector {

  /**
   * Injects dependencies into the fields and methods of {@code 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.
   *
   * @param instance to inject members on. May be {@code null}.
   */
  void injectMembers(T instance);
}