Gets or sets the job metadata for a job.
If this property is null or an empty string, the existing job metadata for the job is maintained. For more information on how job metadata is used, refer to Understanding The LEADTOOLS Job Processor Database
For an example, refer to Leadtools.Services.JobProcessor.ServiceContracts.IJobService.ResetJob(Leadtools.Services.JobProcessor.DataContracts.ResetJobRequest).