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# Job service

This service is process bean that provides a way to manipulate jobs within the current process.

### Changing Timer event date

Job service currently provides two methods that allow for an update on the timer due date in the current process.

```kotlin
updateTimerDueDateByActivityId("2300-01-01T00:00:00Z","timer-id",execution)
addOffsetInMillisToTimerDueDateByActivityId(1000,"timer-id",execution)
```

* "updateTimerDueDateByActivityId" - allows changing the date by passing it as "String", in the ISO 8601 format , as the first parameter along with the timer event id and the current execution of the process as second and third parameters respectively.
* "addOffsetInMillisToTimerDueDateByActivityId" - used to add an offset to the current set due date by providing the amount to be added(in milliseconds) by passing a positive number, or subtracted with a negative number.

**How to use**

In this example a timer exists with the given id "timer-test"

![timer](/files/k837eY8MVRy4bvIx96Xy)

Somewhere else in the process a sub-process exists with a service task where the job service is called in an expression with a negative number in order to move forward a job in time as show below

![job-service-example](/files/Jb5nTi881Os8nAgTbwM9)