[validator] How to evaluate message template?

dkarr · **Joined:** Mon Aug 07, 2006 6:22 pm **Posts:** 67

I'm attempting to write a Javadoc Taglet class that summarizes the constraints in a class.

When I'm processing a particular constraint that I found on a property, I can see the message template value, like "{javax.validation.constraints.Size.message}". In my code, how can I evaluate that template to get the actual text of the message?

dkarr · **Joined:** Mon Aug 07, 2006 6:22 pm **Posts:** 67

I suppose it might be something like this:

Code:

validatorFactory.getMessageInterpolator().interpolate(constraintDescriptor.getMessageTemplate(), context);

But I don't understand what to provide as the context. If I send null it gets a NPE.

Gunnar · **Joined:** Sat Jan 24, 2009 12:46 pm **Posts:** 388

Hi David, I've replied to your SO question (https://stackoverflow.com/questions/450 ... nstraint-d) -- you could try and pass in a simple dummy implementation of the context contract which just returns the constraint descriptor.

Hth,

--Gunnar

PS: Please avoid cross-posting here and on SO; we monitor both places, so posting to one is enough and less confusing :) Thanks!

dkarr · **Joined:** Mon Aug 07, 2006 6:22 pm **Posts:** 67

Thanks. That worked perfectly.

Now that I know you're about the only person who will reply on this topic :) , I won't cross-post.