Understanding ESS terminology
Familiarizing yourself with the terminology of a relatively new technology component is not only necessary in order to understand the remaining sections of this chapter, but essential to fulfill your responsibilities as an administrator. Let's begin by understanding a simple component diagram, as shown in the following figure, followed by a brief description of each of the components.
Figure 11.3: The component diagram of Enterprise Scheduling Services
Job type
A job type is a basic predefined type that indicates what a job would comprise, such as Java or EJB code, PL/SQL, a command line, or web service.
Job definition
A job definition is the metadata associated with a job, such as parameter values specific to the request being executed.
Job
A job is essentially the smallest unit of work executed by the Scheduler Service engine; it is defined by the associated job type.
Job request
A job request is simply the execution of a job definition on a schedule. Every request...
