The Grails Framework 6.0.0

(Quick Reference) ## type ### Purpose Configures the Hibernate type for a particular property. ### Examples Changing to a text type (CLOB or TEXT depending on database dialect):
    class Book {

        String title

        static mapping = {
            title type: "text"
        }
    }
User types with multiple columns:
    class Book {
        ...
        MonetaryAmount amount

        static mapping = {
            amount type: MonetaryUserType, {
                column name: "value"
                column name: "currency", sqlType: "char", length: 3
            }
        }
    }
### Description Usage: `association_name(type:string/class)` Hibernate will attempt to automatically select the appropriate database type from the field typed based on configuration in the `Dialect` class that is being used. But you can override the defaults if necessary. For example `String` values are mapped by default to `varchar(255)` columns. To store larger `String` values you can use a `text` type instead:
    static mapping = {
        title type: "text"
    }
Hibernate also has the concept of custom `UserType` implementations. In this case you specify the `UserType` class. If the `UserType` maps to multiple columns you may need to specify a mapping for each column:
    static mapping = {
        amount type: MonetaryUserType, {
            column name: "value"
            column name: "currency", sqlType: "char", length: 3
        }
    }
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