CronDaemon (AO Cron 3.0.0 API)

java.lang.Object
- com.aoapps.cron.CronDaemon

```
public final class CronDaemon
extends Object
```
Run cron jobs based on their scheduling requirements. Once per minute it polls each cron job and runs it if it is currently scheduled.
If this main task is delayed for more than a minute, schedules will be missed. Some possible causes include the process was stopped (kill -STOP) or the machine was suspended/hibernated.

Author:

AO Industries, Inc.

See Also:

CronJob

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`addCronJob(CronJob job, Logger logger)`	Adds a `CronJob` to the list of jobs.
`static void`	`removeCronJob(CronJob job)`	Removes a `CronJob` from the list of jobs.
`static void`	`runImmediately(CronJob job)`	Runs a CronJob immediately if it is not already running or allows concurrent execution.
`static void`	`setLogger(Logger logger)`	Sets the logger for the cron daemon errors (not the individual cron jobs).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - setLogger
```
public static void setLogger(Logger logger)
```
    Sets the logger for the cron daemon errors (not the individual cron jobs).
    
    Parameters:
    
    logger - The logger or null to use the default logger
  - addCronJob
```
public static void addCronJob(CronJob job,
                              Logger logger)
```
    Adds a CronJob to the list of jobs. If the job is already in the list, it will not be added again.
  - removeCronJob
```
public static void removeCronJob(CronJob job)
```
    Removes a CronJob from the list of jobs.
  - runImmediately
```
public static void runImmediately(CronJob job)
                           throws IllegalStateException
```
    Runs a CronJob immediately if it is not already running or allows concurrent execution.
    
    Throws:
    
    IllegalStateException - If the job has not been added.