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jOOλ is part of the jOOQ series (along with jOOQ, jOOX, jOOR, jOOU) providing some useful extensions to Java 8 lambdas.

There is a newer version: 0.9.15

/**
 * Copyright (c) 2014-2016, Data Geekery GmbH, [email protected]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jooq.lambda.function;


import org.jooq.lambda.tuple.Tuple0;

/**
 * A consumer with 0 arguments.
 *
 * @author Lukas Eder
 */
@FunctionalInterface
public interface Consumer0 extends Runnable {

    /**
     * Performs this operation on the given argument.
     *
     * @param args The arguments as a tuple.
     */
    default void accept(Tuple0 args) {
        accept();
    }

    /**
     * Performs this operation on the given argument.
     */
    void accept();

    @Override
    default void run() {
        accept();
    }

    /**
     * Convert this consumer to a {@link java.lang.Runnable}.
     */
    default Runnable toRunnable() {
        return this::accept;
    }

    /**
     * Convert to this consumer from a {@link java.lang.Runnable}.
     */
    static Consumer0 from(Runnable runnable) {
        return runnable::run;
    }
}