content: package act.util;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  
  /**
   * Mark a Class is stateless in the context of ActFramework.
   *
   * E.g. a certain Dao like `Foo.Dao` could be marked as `@Stateless` as
   * every time it injected to a controller should be the same instance.
   *
   * Note this annotation is **NOT** inherited
   *
   * See https://github.com/actframework/actframework/issues/161
   */
  @Retention(RetentionPolicy.RUNTIME)
  @Target({ElementType.TYPE, ElementType.FIELD, ElementType.ANNOTATION_TYPE})
  public @interface Stateless {
  }
  