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Command framework and dispatcher for the JVM

There is a newer version: 1.8.4

//
// MIT License
//
// Copyright (c) 2022 Alexander Söderberg & Contributors
//
// 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 cloud.commandframework.bukkit.annotation.specifier;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.apiguardian.api.API;

/**
 * Annotation used to specify if an empty result is allowed for
 * {@link cloud.commandframework.bukkit.parsers.selector.MultiplePlayerSelectorArgument} and
 * {@link cloud.commandframework.bukkit.parsers.selector.MultipleEntitySelectorArgument}.
 *
 * @since 1.8.0
 */
@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
@API(status = API.Status.STABLE, since = "1.8.0")
public @interface AllowEmptySelection {

    /**
     * Whether to allow empty results.
     *
     * @return value
     */
    boolean value() default true;

}