How to map Domain Object Properties to Columns

Question

I have this domain class.

class Book {

    String code
    String description

    static mapping = {
        table 'Book'
        version false
    }
}

and I have table BookStore with columns COD and DSC. I need map to this table.

How can I achieve this?

Answer 1

class Book implements Serializable {
        String code
    String description

    static mapping = {
        table 'BookStore'
        version false
        id composite: ['code']
        code column: 'COD'
        description column: 'DSC'
    }

    boolean equals(other) {
        if (!(other instanceof Book)) {
            return false
        }
        other.code == code
    }

    int hashCode() {
        def builder = new HashCodeBuilder()
        builder.append code
        builder.toHashCode()
    }

}