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/*
 * Copyright 2002-2006 the original author or authors.
 *
 * 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.springframework.scheduling;

import org.springframework.core.task.TaskExecutor;

/**
 * Extension of the core TaskExecutor interface, exposing scheduling
 * characteristics that are relevant to potential task submitters.
 *
 * 

Scheduling clients are encouraged to submit Runnables that match * the exposed preferences of the TaskExecutor implementation in use. * * @author Juergen Hoeller * @since 2.0 * @see SchedulingAwareRunnable * @see org.springframework.core.task.TaskExecutor * @see org.springframework.scheduling.commonj.WorkManagerTaskExecutor */ public interface SchedulingTaskExecutor extends TaskExecutor { /** * Return whether this TaskExecutor prefers short-lived operations * (true) over long-lived ones (false). *

A SchedulingTaskExecutor implementation can indicate whether it prefers submitted * tasks to perform as little work as they can within a single task execution. * For example, submitted tasks might break a repeated loop into individual * subtasks which submit a follow-up task afterwards (if feasible). *

This should be considered a hint. Of course TaskExecutor clients are * free to ignore this flag and hence the SchedulingTaskExecutor interface overall. * However, thread pools will usually indicated a preference for short-lived * tasks, to be able to perform more fine-grained scheduling. */ boolean isShortLivedPreferred(); }





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