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/* * Copyright 2002-2017 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 * * https://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.config; import java.util.concurrent.ScheduledFuture; import org.springframework.lang.Nullable; /** * A representation of a scheduled task at runtime, * used as a return value for scheduling methods. * * @author Juergen Hoeller * @since 4.3 * @see ScheduledTaskRegistrar#scheduleCronTask(CronTask) * @see ScheduledTaskRegistrar#scheduleFixedRateTask(FixedRateTask) * @see ScheduledTaskRegistrar#scheduleFixedDelayTask(FixedDelayTask) */ public final class ScheduledTask { private final Task task; @Nullable volatile ScheduledFuture<?> future; ScheduledTask(Task task) { this.task = task; } /** * Return the underlying task (typically a {@link CronTask}, * {@link FixedRateTask} or {@link FixedDelayTask}). * @since 5.0.2 */ public Task getTask() { return this.task; } /** * Trigger cancellation of this scheduled task. */ public void cancel() { ScheduledFuture<?> future = this.future; if (future != null) { future.cancel(true); } } @Override public String toString() { return this.task.toString(); } }