package org.apache.onami.scopes;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.

  */

 import com.google.inject.ScopeAnnotation;

 import java.lang.annotation.ElementType;

 import java.lang.annotation.Retention;

 import java.lang.annotation.RetentionPolicy;

 import java.lang.annotation.Target;

 /**

  * Same as {@link LazySingleton} with the addition of allowing for more

  * concurrency. The various {@code com.google.inject.Scopes#SINGLETON} based scopes have

  * a major concurrency restriction due to a blunt synchronization (see

  * the comment inside of the Guice code). This version synchronizes

  * on the object key and, thus, can construct multiple types of singletons

  * concurrently.

  */

 @Target( { ElementType.TYPE, ElementType.METHOD } )

 @Retention( RetentionPolicy.RUNTIME )

 @ScopeAnnotation

 public @interface ConcurrentLazySingleton

 {

 }