About the Digital Event Services Transport
Software AG Digital Event Services is a messaging system for communicating between different Software AG products using events. Digital Event Services allows event definitions to be converted between a product's internal event or document definition to digital event types and vice versa, so participating products can share a set of event definitions. When you develop Apama applications that make use of Digital Event Services, the digital event type definitions are automatically translated to Apama event types. When digital events are sent to or received from Digital Event Services, they are converted to or from Apama events.
For details of the event mapping, see the
.mon source file that is generated into the
autogenerated node of your Apama project in
Software AG Designer. Note that digital event types that contain nested events (or sequences of nested events) are converted to Apama event definitions that have an optional member (or sequence of optionals) for that event type. See the description of the
optional type for more information. When digital events are converted to Apama events, fields of other types with no value set are set to the default value for that type (see also
Default values for types).
To use digital event types in your Apama application, proceed as follows:
1. Use Software AG Installer to install Digital Event Services. See Installing Software AG Products for more information.
2. Configure Digital Event Services as described in Using Digital Event Services to Communicate between Software AG Products.
4. Use the Digital Event Types editor to turn digital event types into Apama event types and existing Apama event types into digital event types. Apama event types that correspond to digital event types can be used just like ordinary Apama events. You can create digital events, create event expressions for them, set and get their contents, pass them around internally between monitors and contexts, and much more. See the above-mentioned topic for more information.
5. Edit the DESConnectivity.properties file to configure the Digital Event Services connectivity plug-in which defines the Apama connection to Digital Event Services. See the above-mentioned topic for more information.