Grails Transient Domain Properties Wednesday, April 3, 2013

So far, this is the only official document of a transient property.

Grails Docs Transients

But, I found this interesting nugget:

Question about transient properties

"As of 2.0 if there is only a getter or only a setter method, you don't
need to declare the property name of the method in the transients list.
Only typed fields and get/set pairs that form a property but shouldn't
be persisted need to go in the transients list."

I created domain classes based on this nugget, and it does work.

My domain class just has two methods:

def getPercentMinutes(){ "transient PercentMinutes" }
def getPercentCost(){ "transient PercentCost" }

And does not have a "transients" property.

static transients = ['']

It doesn't need it. Finally, no columns for these properties are created in the DB.

Be careful, do not use a closure as your method call. E.g., don't do this:

def getPercentMinutes = { "transient PercentMinutes" }
def getPercentCost = { "transient PercentCost" }