Root level node Commands to be executed before scheduling the jobs and triggers in this file. Directives to be followed while scheduling the jobs and triggers in this file. Version of the XML Schema instance Delete all jobs, if any, in the identified group. "*" can be used to identify all groups. Will also result in deleting all triggers related to the jobs. Delete all triggers, if any, in the identified group. "*" can be used to identify all groups. Will also result in deletion of related jobs that are non-durable. Delete the identified job if it exists (will also result in deleting all triggers related to it). Delete the identified trigger if it exists (will also result in deletion of related jobs that are non-durable). Whether the existing scheduling data (with same identifiers) will be overwritten. If false, and ignore-duplicates is not false, and jobs or triggers with the same names already exist as those in the file, an error will occur. If true (and overwrite-existing-data is false) then any job/triggers encountered in this file that have names that already exist in the scheduler will be ignored, and no error will be produced. If true trigger's start time is calculated based on earlier run time instead of fixed value. Trigger's start time must be undefined for this to work. Define a JobDetail Define a JobDataMap Define a JobDataMap entry Define a Trigger Common Trigger definitions Define a SimpleTrigger Define a CronTrigger Define a DateIntervalTrigger Cron expression (see JavaDoc for examples) Special thanks to Chris Thatcher (thatcher@butterfly.net) for the regular expression! Regular expressions are not my strong point but I believe this is complete, with the caveat that order for expressions like 3-0 is not legal but will pass, and month and day names must be capitalized. If you want to examine the correctness look for the [\s] to denote the seperation of individual regular expressions. This is how I break them up visually to examine them: SECONDS: ( ((([0-9]|[0-5][0-9])(-([0-9]|[0-5][0-9]))?,)*([0-9]|[0-5][0-9])(-([0-9]|[0-5][0-9]))?) | (([\*]|[0-9]|[0-5][0-9])/([0-9]|[0-5][0-9])) | ([\?]) | ([\*]) ) [\s] MINUTES: ( ((([0-9]|[0-5][0-9])(-([0-9]|[0-5][0-9]))?,)*([0-9]|[0-5][0-9])(-([0-9]|[0-5][0-9]))?) | (([\*]|[0-9]|[0-5][0-9])/([0-9]|[0-5][0-9])) | ([\?]) | ([\*]) ) [\s] HOURS: ( ((([0-9]|[0-1][0-9]|[2][0-3])(-([0-9]|[0-1][0-9]|[2][0-3]))?,)*([0-9]|[0-1][0-9]|[2][0-3])(-([0-9]|[0-1][0-9]|[2][0-3]))?) | (([\*]|[0-9]|[0-1][0-9]|[2][0-3])/([0-9]|[0-1][0-9]|[2][0-3])) | ([\?]) | ([\*]) ) [\s] DAY OF MONTH: ( ((([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1])(-([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1]))?,)*([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1])(-([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1]))?(C)?) | (([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1])/([1-9]|[0][1-9]|[1-2][0-9]|[3][0-1])(C)?) | (L(-[0-9])?) | (L(-[1-2][0-9])?) | (L(-[3][0-1])?) | (LW) | ([1-9]W) | ([1-3][0-9]W) | ([\?]) | ([\*]) )[\s] MONTH: ( ((([1-9]|0[1-9]|1[0-2])(-([1-9]|0[1-9]|1[0-2]))?,)*([1-9]|0[1-9]|1[0-2])(-([1-9]|0[1-9]|1[0-2]))?) | (([1-9]|0[1-9]|1[0-2])/([1-9]|0[1-9]|1[0-2])) | (((JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(-(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?,)*(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(-(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?) | ((JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)/(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)) | ([\?]) | ([\*]) )[\s] DAY OF WEEK: ( (([1-7](-([1-7]))?,)*([1-7])(-([1-7]))?) | ([1-7]/([1-7])) | (((MON|TUE|WED|THU|FRI|SAT|SUN)(-(MON|TUE|WED|THU|FRI|SAT|SUN))?,)*(MON|TUE|WED|THU|FRI|SAT|SUN)(-(MON|TUE|WED|THU|FRI|SAT|SUN))?(C)?) | ((MON|TUE|WED|THU|FRI|SAT|SUN)/(MON|TUE|WED|THU|FRI|SAT|SUN)(C)?) | (([1-7]|(MON|TUE|WED|THU|FRI|SAT|SUN))(L|LW)?) | (([1-7]|MON|TUE|WED|THU|FRI|SAT|SUN)#([1-7])?) | ([\?]) | ([\*]) ) YEAR (OPTIONAL): ( [\s]? ([\*])? | ((19[7-9][0-9])|(20[0-9][0-9]))? | (((19[7-9][0-9])|(20[0-9][0-9]))/((19[7-9][0-9])|(20[0-9][0-9])))? | ((((19[7-9][0-9])|(20[0-9][0-9]))(-((19[7-9][0-9])|(20[0-9][0-9])))?,)*((19[7-9][0-9])|(20[0-9][0-9]))(-((19[7-9][0-9])|(20[0-9][0-9])))?)? ) Number of times to repeat the Trigger (-1 for indefinite) Simple Trigger Misfire Instructions Cron Trigger Misfire Instructions Date Interval Trigger Misfire Instructions Interval Units