import org.datanucleus.api.jdo.JDOPersistenceManagerFactory;
public class JPOXDemo {
public static void main(String[] args) {
JDOPersistenceManagerFactory pmf = new JDOPersistenceManagerFactory();
pmf.setProperty("javax.jdo.option.ConnectionURL", "jdbc:mysql://localhost:3306/mydatabase");
pmf.setProperty("javax.jdo.option.ConnectionDriverName", "com.mysql.jdbc.Driver");
pmf.setProperty("javax.jdo.option.ConnectionUserName", "root");
pmf.setProperty("javax.jdo.option.ConnectionPassword", "password");
PersistenceManager pm = pmf.getPersistenceManager();
try {
pm.currentTransaction().begin();
MyObject obj = new MyObject();
obj.setName("John");
obj.setAge(25);
pm.makePersistent(obj);
pm.currentTransaction().commit();
Query query = pm.newQuery(MyObject.class);
List<MyObject> results = (List<MyObject>) query.execute();
for (MyObject result : results) {
System.out.println(result.getName() + " - " + result.getAge());
}
} finally {
pm.close();
}
}
}
import javax.jdo.annotations.*;
@PersistenceCapable
public class MyObject {
@PrimaryKey
private String name;
@Persistent
private int age;
}
