Implementing composite sensors within a SOA solution provides the ability to define trackable fields on messages and enables you to find a specific composite instance by searching for a field or fields within a message. For example, a sensor could be defined for an invoice number within a message, thus allowing us to search and find the instance where the invoice number in question is found.
While this functionality is not new within Oracle SOA Suite 12c, there are some improved capabilities that have been included in this release, which will be covered in this article.
Composite sensors can be defined within a SOA composite application in several components:
Within these components, a composite sensor can be defined in a couple of different ways. One way is to specify an existing variable as the sensor (as shown below). Another way is to define by an expression with the help of the expression builder. The third way is to define using properties (e.g. message header properties). Read the complete article here.
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