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/*
* Copyright (C) 2015-2020 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 static java.lang.annotation.ElementType.*;
import static java.lang.annotation.RetentionPolicy.*;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* The singular annotation is used together with {@code @Builder} to create single element 'add' methods in the builder for collections.
*/
@Target({FIELD, PARAMETER})
@Retention(SOURCE)
public @interface Singular {
/** @return The singular name of this field. If it's a normal english plural, lombok will figure it out automatically. Otherwise, this parameter is mandatory. */
String value() default "";
/** @return If true, the plural variant (which takes a collection and adds each element inside) will treat {@code null} as an empty collection, i.e. do nothing. If {@code false) (the default), it is null checked as if annotated with {@code @lombok.NonNull}. */
boolean ignoreNullCollections() default false;
}
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