Using criteria, how to check if property not equal to white space?

[ysylla]

Hi All,

I Have to domain class

person { name, age,address,email}

.
Using criteria, I'd like to select only persons with valid email and and address not equal to white space.

My code :

       def c = Person.createCriteria()
        params.max = Math.min(params.max ? params.max.toInteger() : 181, 200)
        def list = c.list(max: params.max) {
           or {
              isNotNull("name")
              isNotNull("email")
             }
        }

Please, i need your helps.
Thanks