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/*
* Copyright (C) 2009-2013 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;
import lombok.core.FlagUsageType;
import lombok.core.configuration.ConfigurationKey;
/**
* 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.
* <p>
* 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.
* <p>
* Complete documentation is found at <a href="http://projectlombok.org/features/Synchronized.html">the project lombok features page for @Synchronized</a>.
*/
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.SOURCE)
public @interface Synchronized {
/**
* lombok configuration: {@code lombok.Synchronized.flagUsage} = {@code WARNING} | {@code ERROR}.
*
* If set, <em>any</em> usage of {@code @Synchronized} results in a warning / error.
*/
ConfigurationKey<FlagUsageType> FLAG_USAGE = new ConfigurationKey<FlagUsageType>("lombok.Synchronized.flagUsage") {};
/**
* 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.
*/
String value() default "";
}
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