onopen
When the service comes up it triggers a notify or
solicit referenced by relative path. The referenced operation must have the service as
its client and a JSON field named event
.
<folder name="Folder"> <service name="Expr" provision="expr"> <prop name="instance.spec" onopen="Mix/OnOpen"/> </service> <mix name="Mix"> <field name="event" type="json"/> <notify name="OnOpen" service="Sequencer" clients="Expr" fields="event"/> </mix> </folder>