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/*
* Copyright (C) 2009-2017 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Almost exactly like putting the 'synchronized' keyword on a method, except will synchronize on a private internal
* Object, so that other code not under your control doesn't meddle with your thread management by locking on
* your own instance.
*
* For non-static methods, a field named {@code $lock} is used, and for static methods,
* {@code $LOCK} is used. These will be generated if needed and if they aren't already present. The contents
* of the fields will be serializable.
*
* Complete documentation is found at the project lombok features page for @Synchronized.
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.SOURCE)
public @interface Synchronized {
/**
* Optional: specify the name of a different field to lock on. It is a compile time error if this field
* doesn't already exist (the fields are automatically generated only if you don't specify a specific name).
*
* @return Name of the field to lock on (blank = generate one).
*/
String value() default "";
}