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A utility to reduce boilerplate code in Bukkit plugins.

There is a newer version: 5.6.14

/*
 * This file is part of helper, licensed under the MIT License.
 *
 *  Copyright (c) lucko (Luck) 
 *  Copyright (c) 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 me.lucko.helper.event;

import me.lucko.helper.terminable.Terminable;

/**
 * Represents a subscription to a given (set of) event(s).
 */
public interface Subscription extends Terminable {

    /**
     * Gets whether the handler is active
     *
     * @return if the handler is active
     */
    boolean isActive();

    /**
     * Gets the number of times the handler has been called
     *
     * @return the number of times the handler has been called
     */
    long getCallCounter();

    /**
     * Unregisters the handler
     *
     * @return true if the handler wasn't already unregistered
     */
    boolean unregister();

    @Override
    default boolean terminate() {
        return unregister();
    }

}