JAVA開発メモ
 Hibernate のバックアップ(No.2)
 

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package test; import java.util.List; import java.util.Properties; import net.sf.hibernate.Hibernate; import net.sf.hibernate.HibernateException; import net.sf.hibernate.Session; import net.sf.hibernate.Transaction; import net.sf.hibernate.cfg.Configuration; import net.sf.hibernate.expression.Expression; public class SampleMain { public static void main(String[] args) { Configuration cfg = null; Session session = null; Transaction transaction = null; Properties props = new Properties(); try { cfg = new Configuration().addClass(Person.class).addProperties(props); session = cfg.buildSessionFactory().openSession(); //session.setFlushMode(FlushMode.COMMIT); transaction = session.beginTransaction(); Person person = new Person(); Long id = (Long) session.save(person); Person load = (Person) session.load(Person.class, id); System.out.println(load); session.update(person); List list = session.find("from Person where id=?", id, Hibernate.LONG); System.out.println(list); List list2 = session.createCriteria(Person.class).add(Expression.eq("id", id)).list(); System.out.println(list2); session.delete(person); list = session.find("from Person"); System.out.println(list); transaction.commit(); } catch (Exception e) { try { if (transaction != null) transaction.rollback(); } catch (Exception e1) { e1.printStackTrace(); } e.printStackTrace(); } finally { try { if (session != null && session.isOpen()) session.close(); } catch (HibernateException e1) { e1.printStackTrace(); } } } } <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd"> <hibernate-mapping> <class name="test.Person" table="PERSON"> <id name="id" column="ID" type="long"> <generator class="native"/> </id> <property name="name" column="NAME" type="string" length="20" not-null="true"/> </class> </hibernate-mapping> Person load = (Person) session.load(Person.class, id, LockMode.UPGRADE); List list2 = session.createCriteria(Person.class) .add(Expression.eq("id", id)) .setLockMode(LockMode.UPGRADE) .list();
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