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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 org.springframework.scheduling.support.CronTrigger; /** * {@link TriggerTask} implementation defining a {@code Runnable} to be executed according * to a {@linkplain org.springframework.scheduling.support.CronSequenceGenerator standard * cron expression}. * * @author Chris Beams * @since 3.2 * @see org.springframework.scheduling.annotation.Scheduled#cron() * @see ScheduledTaskRegistrar#addCronTask(CronTask) */ public class CronTask extends TriggerTask { private final String expression; /** * Create a new {@code CronTask}. * @param runnable the underlying task to execute * @param expression the cron expression defining when the task should be executed */ public CronTask(Runnable runnable, String expression) { this(runnable, new CronTrigger(expression)); } /** * Create a new {@code CronTask}. * @param runnable the underlying task to execute * @param cronTrigger the cron trigger defining when the task should be executed */ public CronTask(Runnable runnable, CronTrigger cronTrigger) { super(runnable, cronTrigger); this.expression = cronTrigger.getExpression(); } /** * Return the cron expression defining when the task should be executed. */ public String getExpression() { return this.expression; } }