Custom 16 digit ID Generator in Grails Domain

Question

Instead of a sequence of ID which GORM creates, I want to use a 16 digit random number as ID for all the tables GORM creates. I need help as to how to do that. I tried doing

static mapping = { id generator: 'uuid2' }

it didnt work. Help appreciated

Answer 1

You can use a simple mapping like:

class Book {
    static mapping = {
        id generator:'assigned'
     }
    def beforeInsert() {
        id = YourRandomGenerator.nextInt()
    }
}

Note the use of the beforeInsert event to assign the id. Greetings.