Validation Support for Grails
GValidation plugin has reached version 0.3.
This plugin aims to provide Grails-like constraints and validation support for Griffon.
In previous versions, users defined a custom validator using a closure, but in this release developers can create a top level reusable custom constraint. “Once created a custom constraint pretty much behaves exactly like a built-in constraint,” reads the announcement. With GValidation 0.3, validation can be performed on a selected number of fields in the model instead of on all fields. Please see the announcement for more information on the new features.