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Redis based In-Memory Data Grid for Java
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/**
 * Copyright (c) 2013-2021 Nikita Koksharov
 *
 * 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.redisson.api;

import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;

/**
 * Distributed async implementation of {@link java.util.concurrent.ExecutorService}
 * 
 * @author Nikita Koksharov
 *
 */
public interface RExecutorServiceAsync {

    /**
     * Returns true if this Executor Service has task
     * by taskId awaiting for execution and/or currently in execution
     *
     * @param taskId - id of task
     * @return true if this Executor Service has task
     */
    RFuture hasTaskAsync(String taskId);

    /**
     * Returns amount of tasks awaiting for execution and/or currently in execution.
     *
     * @return amount of tasks
     */
    RFuture getTaskCountAsync();

    /**
     * Returns list of task ids awaiting for execution and/or currently in execution.
     *
     * @return task ids
     */
    RFuture> getTaskIdsAsync();

    /**
     * Cancel task by id
     *
     * @see RExecutorFuture#getTaskId()
     *
     * @param taskId - id of task
     * @return true if task has been canceled successfully
     */
    RFuture cancelTaskAsync(String taskId);

    /**
     * Deletes executor request queue and state objects
     * 
     * @return true if any of objects were deleted
     */
    RFuture deleteAsync();

    /**
     * Submits task for execution asynchronously  
     * 
     * @param  type of return value
     * @param task - task to execute
     * @return Future object
     */
     RExecutorFuture submitAsync(Callable task);

    /**
     * Submits a value-returning task with defined timeToLive parameter
     * for execution asynchronously. Returns a Future representing the pending
     * results of the task. The Future's {@code get} method will return the
     * task's result upon successful completion.
     *
     * @param task the task to submit
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @param  the type of the task's result
     * @return a Future representing pending completion of the task
     */
     RExecutorFuture submitAsync(Callable task, long timeToLive, TimeUnit timeUnit);

    /**
     * Submits tasks batch for execution asynchronously.
     * All tasks are stored to executor request queue atomically,
     * if case of any error none of tasks will be added.
     * 
     * @param tasks - tasks to execute
     * @return Future object
     */
    RExecutorBatchFuture submitAsync(Callable...tasks);
    
    /**
     * Submits task for execution asynchronously
     * 
     * @param task - task to execute
     * @return Future object
     */
    RExecutorFuture submitAsync(Runnable task);
    
    /**
     * Submits a task with defined timeToLive parameter
     * for execution asynchronously. Returns a Future representing task completion.
     * The Future's {@code get} method will return the
     * task's result upon successful completion.
     *
     * @param task the task to submit
     * @param timeToLive - time to live interval
     * @param timeUnit - unit of time to live interval
     * @return a Future representing pending completion of the task
     */
    RExecutorFuture submitAsync(Runnable task, long timeToLive, TimeUnit timeUnit);

    /**
     * Submits tasks batch for execution asynchronously. All tasks are stored to executor request queue atomically, 
     * if case of any error none of tasks will be added.
     * 
     * @param tasks - tasks to execute
     * @return Future object
     */
    RExecutorBatchFuture submitAsync(Runnable...tasks);
    
}