The Grails Framework 5.2.3

(Quick Reference) ## size ### Purpose Uses a Groovy range to restrict the size of a collection, a number, or the length of a String. ### Examples
    children size: 5..15
### Description Sets the size of a collection, a number property, or String length.
| Currently this constraint cannot be used in addition to blank or nullable. Use a custom validator for these combinations.
This constraint influences schema generation. Error Code: `className.propertyName.size.toosmall` or `className.propertyName.size.toobig` | Quick Reference (hide)