Gets or sets the worker metadata for a job.
The worker metadata stores any additional information about the job as reported by the worker. For example, if the objective of the JobProcessor is to convert large files from one format to another you may want to provide the user with more detailed progress than the overall percentage. This column could be used to specify the current page or frame being converted (Page 1 of 25 for example). For more information, refer to Understanding The LEADTOOLS Job Processor Database.