Spring Framework example source code file (CronTriggerBean.java)

This example Spring Framework source code file (CronTriggerBean.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

beannameaware, constants, crontrigger, crontriggerbean, date, date, initializingbean, initializingbean, jobdetail, jobdetail, jobdetailawaretrigger, parseexception, string, string, text, util

The Spring Framework CronTriggerBean.java source code

/*
 * Copyright 2002-2007 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.quartz;

import java.text.ParseException;
import java.util.Date;
import java.util.Map;
import java.util.TimeZone;

import org.quartz.CronTrigger;
import org.quartz.JobDetail;
import org.quartz.Scheduler;

import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.core.Constants;

/**
 * Convenience subclass of Quartz's {@link org.quartz.CronTrigger}
 * class, making bean-style usage easier.
 *
 * <p>CronTrigger itself is already a JavaBean but lacks sensible defaults.
 * This class uses the Spring bean name as job name, the Quartz default group
 * ("DEFAULT") as job group, the current time as start time, and indefinite
 * repetition, if not specified.
 *
 * <p>This class will also register the trigger with the job name and group of
 * a given {@link org.quartz.JobDetail}. This allows {@link SchedulerFactoryBean}
 * to automatically register a trigger for the corresponding JobDetail,
 * instead of registering the JobDetail separately.
 *
 * <p>NOTE: This convenience subclass does not work with trigger
 * persistence in Quartz 1.6, due to a change in Quartz's trigger handling.
 * Use Quartz 1.5 if you rely on trigger persistence based on this class,
 * or the standard Quartz {@link org.quartz.CronTrigger} class instead.
 *
 * @author Juergen Hoeller
 * @since 18.02.2004
 * @see #setName
 * @see #setGroup
 * @see #setStartTime
 * @see #setJobName
 * @see #setJobGroup
 * @see #setJobDetail
 * @see SchedulerFactoryBean#setTriggers
 * @see SchedulerFactoryBean#setJobDetails
 * @see SimpleTriggerBean
 */
public class CronTriggerBean extends CronTrigger
    implements JobDetailAwareTrigger, BeanNameAware, InitializingBean {

	/** Constants for the CronTrigger class */
	private static final Constants constants = new Constants(CronTrigger.class);


	private JobDetail jobDetail;

	private String beanName;


	/**
	 * Register objects in the JobDataMap via a given Map.
	 * <p>These objects will be available to this Trigger only,
	 * in contrast to objects in the JobDetail's data map.
	 * @param jobDataAsMap Map with String keys and any objects as values
	 * (for example Spring-managed beans)
	 * @see JobDetailBean#setJobDataAsMap
	 */
	public void setJobDataAsMap(Map jobDataAsMap) {
		getJobDataMap().putAll(jobDataAsMap);
	}

	/**
	 * Set the misfire instruction via the name of the corresponding
	 * constant in the {@link org.quartz.CronTrigger} class.
	 * Default is <code>MISFIRE_INSTRUCTION_SMART_POLICY.
	 * @see org.quartz.CronTrigger#MISFIRE_INSTRUCTION_FIRE_ONCE_NOW
	 * @see org.quartz.CronTrigger#MISFIRE_INSTRUCTION_DO_NOTHING
	 * @see org.quartz.Trigger#MISFIRE_INSTRUCTION_SMART_POLICY
	 */
	public void setMisfireInstructionName(String constantName) {
		setMisfireInstruction(constants.asNumber(constantName).intValue());
	}

	/**
	 * Set a list of TriggerListener names for this job, referring to
	 * non-global TriggerListeners registered with the Scheduler.
	 * <p>A TriggerListener name always refers to the name returned
	 * by the TriggerListener implementation.
	 * @see SchedulerFactoryBean#setTriggerListeners
	 * @see org.quartz.TriggerListener#getName
	 */
	public void setTriggerListenerNames(String[] names) {
		for (int i = 0; i < names.length; i++) {
			addTriggerListener(names[i]);
		}
	}

	/**
	 * Set the JobDetail that this trigger should be associated with.
	 * <p>This is typically used with a bean reference if the JobDetail
	 * is a Spring-managed bean. Alternatively, the trigger can also
	 * be associated with a job by name and group.
	 * @see #setJobName
	 * @see #setJobGroup
	 */
	public void setJobDetail(JobDetail jobDetail) {
		this.jobDetail = jobDetail;
	}

	public JobDetail getJobDetail() {
		return this.jobDetail;
	}

	public void setBeanName(String beanName) {
		this.beanName = beanName;
	}


	public void afterPropertiesSet() throws ParseException {
		if (getName() == null) {
			setName(this.beanName);
		}
		if (getGroup() == null) {
			setGroup(Scheduler.DEFAULT_GROUP);
		}
		if (getStartTime() == null) {
			setStartTime(new Date());
		}
		if (getTimeZone() == null) {
			setTimeZone(TimeZone.getDefault());
		}
		if (this.jobDetail != null) {
			setJobName(this.jobDetail.getName());
			setJobGroup(this.jobDetail.getGroup());
		}
	}

}