content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   *
   * 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 org.androidannotations.annotations;
  
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  
  /**
   * <p>
   * Use on activity fields to retain instances that are intensive to compute, on
   * configuration changes.
   * </p>
   * <p>
   * See <a href=
   * "http://developer.android.com/guide/topics/resources/runtime-changes.html#RetainingAnObject"
   * >RetainingAnObject</a> in the Android Documentation.
   * </p>
   * <p>
   * <b>Caution:</b> While you can annotate any field, you should never annotate a
   * field that is tied to the Activity, such as a Drawable, an Adapter, a View or
   * any other object that's associated with a Context. If you do, it will leak
   * all the views and resources of the original activity instance. (Leaking
   * resources means that your application maintains a hold on them and they
   * cannot be garbage-collected, so lots of memory can be lost.)
   * </p>
   * <p>
   * This caution doesn't apply to beans annotated with {@link Bean}, because
   * AndroidAnnotations automatically takes care of rebinding their context.
   * </p>
   *
   * <blockquote>
   *
   * Example :
   *
   * <pre>
   * &#064;EActivity(R.layout.main)
   * public class MyActivity extends Activity {
   * 
   * 	&#064;NonConfigurationInstance
   * 	Bitmap someBitmap;
   * 
   * 	&#064;NonConfigurationInstance
   * 	&#064;Bean
   * 	MyBackgroundTask myBackgroundTask;
   * }
   * </pre>
   *
   * </blockquote>
   */
  @Retention(RetentionPolicy.CLASS)
  @Target(ElementType.FIELD)
  public @interface NonConfigurationInstance {
  }
  