There are a few properties you can instantiate the virtual service with or set them afterwards that affect operation. Below you can see a nice chart for them:
So to create a virtual service you can do this:
Property
Type
Required
Default
Description
entityName
string
true
The entity name to bind the virtual service with.
queryCacheRegion
string
false
#entityName#.defaultVSCache
The name of the secondary cache region to use when doing queries via this service
useQueryCaching
boolean
false
false
To enable the caching of queries used by this service
eventHandling
boolean
false
true
Announce interception events on new() operations and save() operations: ORMPostNew, ORMPreSave, ORMPostSave
useTransactions
boolean
false
true
Enables ColdFusion safe transactions around all operations that either save, delete or update ORM entities
defaultAsQuery
boolean
false
true
The bit that determines the default return value for list(), executeQuery()
as query or array of objects
datasource
string
false
System Default
The default datasource to use for all transactions. If not set, we default it to the system datasource or the one declared in the persistent CFC.