Validator for String

roberto_sc · **Joined:** Wed Nov 12, 2008 12:07 pm **Posts:** 21

Hello

I have a constraint for a String attribute, like String city that can only be "New York" or "Orlando"...
I believe that this would be made using a check constraint for the city column in the ER world, but how can I make it with Hibernate Validator?

I checked the documentation for the basic validators but didn't find.

Thank you

mmerder · **Posted:** Mon Mar 16, 2009 8:10 am

You could use a regex-pattern that is going to be validated:

Code:

@Pattern(regex="\QNew York\E|\QOrlando\E")

Rating is welcome. ;-)

roberto_sc · **Joined:** Wed Nov 12, 2008 12:07 pm **Posts:** 21

Yes, that works, thank you!
However, it does not produce any changes to the db schema. I would like something to create a 'check' constraint in the column of the table, is that possible?

Alberthoven · **Joined:** Tue Feb 17, 2009 5:13 am **Posts:** 59

Sorry my ignorance, but how must I write the regexp including "\Q" or "\E\? if I write only one backslash it raises a compilation error. Should I duplicate it or what?

mmerder · **Posted:** Sat Mar 28, 2009 9:02 am

Yes, in Java you have to duplicate it, because one "\" is an escape-character in java. Sorry, in my post I forgot to do it.