在groovy中如何使用Hibernate，groovyhibernate,groovy代码pack

在groovy中如何使用Hibernate，groovyhibernate,groovy代码pack

groovy代码

package demoimport javax.persistence.*import org.hibernate.cfg.*// javax.transaction jta.jar added manually to ivy repo@Grapes([    @Grab(group='org.hibernate', module='hibernate-annotations', version='3.4.0.GA'),    @Grab(group='org.slf4j', module='slf4j-simple', version='1.4.2'),    @Grab(group='hsqldb', module='hsqldb', version='1.8.0.7'),    @Grab(group='javassist', module='javassist', version='3.4.GA'),])@Entity class Book {    @Id @GeneratedValue(strategy = GenerationType.AUTO)    public Long id    public String author    public String title    String toString() { "$title by $author" }}def hibProps = [    "hibernate.dialect": "org.hibernate.dialect.HSQLDialect",    "hibernate.connection.driver_class": "org.hsqldb.jdbcDriver",    "hibernate.connection.url": "jdbc:hsqldb:mem:demodb",    "hibernate.connection.username": "sa",    "hibernate.connection.password": "",    "hibernate.connection.pool_size": "1",    "hibernate.connection.autocommit": "true",    "hibernate.cache.provider_class": "org.hibernate.cache.NoCacheProvider",    "hibernate.hbm2ddl.auto": "create-drop",    "hibernate.show_sql": "true",    "hibernate.transaction.factory_class": "org.hibernate.transaction.JDBCTransactionFactory",    "hibernate.current_session_context_class": "thread"]def configureHibernate(props) {    def config = new AnnotationConfiguration()    props.each { k, v -> config.setProperty(k, v) }    config.addAnnotatedClass(Book)    return config}def factory = configureHibernate(hibProps).buildSessionFactory()// store some booksdef session = factory.currentSessiondef tx = session.beginTransaction()session.save(new Book(author:'Dierk et al', title:'Groovy in Action'))session.save(new Book(author:'Craig', title:'Spring in Action'))tx.commit()// find some bookssession = factory.currentSessiontx = session.beginTransaction()def books = session.createQuery("from Book").list()println 'Found ' + books.size() + ' books:'books.each { println it }tx.commit()

groovy代码

@Entity class Book {    @Id @GeneratedValue(strategy = GenerationType.AUTO)    public Long id    @OneToOne    public Author author    public String title    String toString() { "$title by $author.name" }}@Entity class Author {    @Id @GeneratedValue(strategy = GenerationType.AUTO)    public Long id    public String name}