/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.tomcat.util.threads;

import java.util.concurrent.BlockingQueue;

/**
 * A retryable queue interface that extends {@link BlockingQueue}.
 *
 * @param <T> The type of elements held in this queue
 */
public interface RetryableQueue<T> extends BlockingQueue<T> {

    /**
     * Used to add a task to the queue if the task has been rejected by the Executor.
     *
     * @param o The task to add to the queue
     *
     * @return {@code true} if the task was added to the queue, otherwise {@code false}
     */
    boolean force(T o);
}
