codahale/dropwizard — pull request #170 by Cemo (2012-08-24 07:08:44+00:00)
Title: Group Support for Dropwizard Validator

Added support for group validating which is very handy in terms of partial validation. If no group is specified the default group javax.validation.groups.Default is assumed. [1]

http://docs.jboss.org/hibernate/validator/4.3/reference/en-US/html/validator-usingvalidator.html#validator-usingvalidator-validationgroups