The Grails Framework 3.3.8

(Quick Reference) ## cache ### Purpose Enables the Hibernate second-level cache for the domain class. ### Examples
    class Book {
        ...
        static mapping = {
            cache true
        }
    }
### Description Usage: `cache(boolean/string/map)` Arguments: `usage` - The cache usage. Can be `read-only`, `read-write`, `nonstrict-read-write` or `transactional` `include` (optional) - Whether to include non-lazy associations. Can be `all` or `non-lazy` You enable caching per domain class, for example:
    static mapping = {
        cache true
    }
This will configure the domain class to use a 'read-write' cache, but you can configure whatever cache policy is appropriate (and supported by the cache implementation):
    static mapping = {
        cache 'transactional'
    }
or
    static mapping = {
        cache usage: 'read-only', include: 'non-lazy'
    }
You can also configure the cache policy on a per-association basis:
    class Author {

        static hasMany = [books: Book]

        static mapping = {
            books cache: true // or 'read-write' etc.
        }
    }
For more information see the section on Caching in the user guide. | Quick Reference (hide)