Database Reference
In-Depth Information
The screenshot in the
Understanding IDs and ECIDs
section later in this chapter
also shows composite sensors in the flow trace. The screenshot displays the
composite sensor with the name
CustomerName
having a value of "Jane Doe".
Developers are encouraged to implement composite sensors. This allows the
administrator to search a particular business field such as an order number or
customer ID. There is also no limit on the number of composite sensors that
can be added to a composite. You can query the
COMPOSITE_SENSOR_VALUE
table in the database to retrieve composite sensor data.
Searching BPEL process sensors
Another useful set of information is available from the
Sensor Values
tab of your
BPEL process. BPEL sensors capture the values of activity, variable, and fault
sensors, if any, that are configured at design time. Sensors are a very important
means of instrumentation in business processes as they record key business or
process analytics information. Have a look at the following screenshot and you
will see how a Variable Sensor records the e-mail delivery acknowledgement in
the
MessageId
variable. Sensors are another means of making sure that busi-
ness processes are executing with all the checks and balances in place.
