Mapping Domain Classes with Hibernate Annotations

Save the following file as grails-app/conf/hibernate/hibernate.cfg.xml. Note that it specifies a single class being mapped, all classes in a package can be specified by using:

<mapping package="com.test.domain" />

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>

   <session-factory>
       <mapping class="Firm"/>
   </session-factory>

</hibernate-configuration>

Our domain class looks as follows. Note that the table name is a Oracle Database Link.

import javax.persistence.Column
import javax.persistence.Entity
import javax.persistence.Id
import javax.persistence.Table 

@Entity()
@Table(name="firm@remote")
class Firm {    
    @Id
    Integer id
    @Column(name="name")
    String name
    @Column(name="status")
    String status

    @Column(name="key")
    String key
    @Column(name="short_name")
    String shortName
}