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* New for 9.5 *
An event type is the definition
of a situation that can occur. A unique name identifies each event
type. Event types can be active or inactive on a server and can
be used only when active.You can use the following event types:
Service-defined events: Services can provide events
and appears in the Events view when the service is activated.
Custom events: You can create these event types using Workbench.
It is useful to create an event type if an existing one does not
meet the requirements of your process.
When an event occurs at runtime, use event types to provide a
notification about the occurrence of the event (throw the event)
and to receive the notification (receive or catch the event).
Event notifications carry data with them so that information
about the event is communicated by the event thrower to the event
receiver. Events distinguish between two types of data:
- Event data:
- A small set of discreet data items that event receivers use
for decision-making purposes.
- Event message data:
- The payload of asynchronous events is in the form of a larger
amount of XML data. Typically, this data either cannot be altered
during the process because it is a document of record or the process
requires the XML document structure to be validated. For example,
the process for a company’s internal purchase order request throws
an event when a purchase order requires approval. The event message
data is the original purchase order form that needs to be approved.
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