getting a row of data from a db table

From:
thufir <hawat.thufir@gmail.com>
Newsgroups:
comp.lang.java.help
Date:
Wed, 09 Jul 2008 23:36:13 GMT
Message-ID:
<NXbdk.60721$kx.39827@pd7urf3no>
Looking at:

http://java.sun.com/javase/6/docs/api/java/sql/ResultSet.html#getArray
(int)

would it make sense to apply that to the init() method with an Array of
Array, Object[][] or similar, representing the data?

There's a small tweaking with indexes, but that seems best. What's the
"standard" way of grabbing that data? Or, is it that for my purposes a
kludge would be sufficient, then as I learn more I'd do it totally
differently?

thufir@arrakis:~$
thufir@arrakis:~$ cat NetBeansProjects/mysql/src/a00720398/model/
Model.java
package a00720398.model;

import a00720398.model.*;
import java.sql.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.table.*;

@SuppressWarnings({"unchecked"})
public class Model extends Observable {

    private static final Model INSTANCE = new Model();
    private Connection connection = DBConnection.getInstance
().getConnection();
    private Vector cars = new Vector();

    private Model() {
        try {
            init();
        } catch (SQLException ex) {
            Logger.getLogger(Model.class.getName()).log(Level.SEVERE,
null, ex);
        }
    }

    public static Model getInstance() {
        return INSTANCE;
    }

    private void init() throws SQLException {
        ResultSet resultSet = getResultSet();

        int columnCount = resultSet.getMetaData().getColumnCount();
        Object[] data = new Object[columnCount];

        while (resultSet.next()) {
            for (int i = 1; i < columnCount; i++) {
                //data[i] = resultSet.getString(i+1);
                data[i] = resultSet.getObject(+1);
            }
        }
        System.out.println(Arrays.deepToString(data));
    }

    ResultSet getResultSet() throws SQLException {
        Statement statement = connection.createStatement();
        ResultSet resultSet = statement.executeQuery("SELECT * FROM
cars");
        return resultSet;
    }
}
thufir@arrakis:~$

thanks,

Thufir

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