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Short overview about Orders:

Overview

  1. An order is a JobScheduler element which works as a "Token". It is passed from a job chain node to the next node or to multiple nodes (parallel orders) in case of parallel job chain configuration (Nodeh1. Job Step).
  2. An order can have following configuration elements:
    • runtime configuration date/time/frequency
    • parameters i.e. cutoff-date, database connection information etc.
    • target server name/ip address for job chain execution, the default is localhost
  3. An order primarily carries parameters which can be used by specific job nodes or by all the nodes of the job chain.
  4. An order can also carry runtime configuration i.e. date/time/frequency etc.
  5. An order can be configured to start part of job chain on one server i.e. Server-A and part of job chain on a second server i.e. Server-B.
  6. An order can be also configured to start a locally configured job chain on a remote server. This means that a generic job chain can be used along with create multiple orders for that job chain. In turn, an order can (optionally) contain the server name, a runtime configuration and any extra parameters required for jobs.
  7. An order is also a "stateless" object, which means that orders do not have success or error states. State is a job property.
  8. An order can start from any step (default is first step) in a job chain and end at any step (default is last step/end node). It can also skip part of the job chain according to specified conditions.
  9. JobScheduler can also create orders from a file-watcher i.e. a job chain can be configured to monitor any directory for incoming file(s). Once a file is matched with a regular expression, JobScheduler will create an order to start processing of the file.
  10. An order can carry parameters from one node to another: parameters can be overwritten, deleted or new parameters can be added to the order at each node.
  11. All the order parameters are also available as environment variables, thus an order parameter added by a Java application job will be accessible to a shell script job or even to PL/SQL script job.

Order Example

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