TestJDO.java

package practiceJDO;

import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import javax.jdo.datastore.JDOConnection;

import org.datanucleus.store.rdbms.query.ForwardQueryResult;

public class TestJDO {

    public static void main(String[] args) {

         System.out.println("JDO Testing Hello");

         UserInfo user = new UserInfo("hello244345r","world","[email protected]");

         PersistenceManager manager = PMF.getInstance().getPersistenceManager();


         manager.makePersistent(user);
         JDOConnection connection = manager.getDataStoreConnection();
         Object conn = connection.getNativeConnection();




         Query query = manager.newQuery(UserInfo.class);

         ForwardQueryResult data = (ForwardQueryResult)query.execute();

         for(int i = 0 ; i < data.size() ; i++ )
         {
             UserInfo info = (UserInfo) data.get(i);

             System.out.println(info.getUsername());
         }
    }

}