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/*
 * Original Author -> Harry Yang ([email protected]) https://taketoday.cn
 * Copyright © TODAY & 2017 - 2021 All Rights Reserved.
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see [http://www.gnu.org/licenses/]
 */

package cn.taketoday.util.concurrent;

import java.util.function.BiConsumer;

/**
 * Failure callback for a {@link ListenableFuture}.
 * 
 * in favor of {@link java.util.concurrent.CompletableFuture#whenComplete(BiConsumer)}
 *
 * @author Sebastien Deleuze
 * @author Harry Yang
 * @since 4.0
 */
@FunctionalInterface
public interface FailureCallback {

  /**
   * Called when the {@link ListenableFuture} completes with failure.
   * Note that Exceptions raised by this method are ignored.
   *
   * @param ex the failure
   */
  void onFailure(Throwable ex);

}