19.2 Mapping with Hibernate Annotations - Reference Documentation
Authors: Graeme Rocher, Peter Ledbrook, Marc Palmer, Jeff Brown, Luke Daley, Burt Beckwith, Lari Hotari
Version: 3.0.12
19.2 Mapping with Hibernate Annotations
To map a domain class with annotations, create a new class insrc/java
and use the annotations defined as part of the EJB 3.0 spec (for more info on this see the Hibernate Annotations Docs):package com.books;import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id;@Entity public class Book { private Long id; private String title; private String description; private Date date; @Id @GeneratedValue public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getDescription() { return description; } public void setDescription(String description) { this.description = description; } }
sessionFactory
by adding relevant entries to the grails-app/conf/hibernate.cfg.xml
file as follows:<!DOCTYPE hibernate-configuration SYSTEM "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <mapping package="com.books" /> <mapping class="com.books.Book" /> </session-factory> </hibernate-configuration>
hibernate.cfg.xml
file.When Grails loads it will register the necessary dynamic methods with the class. To see what else you can do with a Hibernate domain class see the section on Scaffolding.