How is SessionHelper getting instantiated (in a JSP)?

Question

Hi,
          This is kind of related to a previous post. As a result of looking into how to work with PortalSession, I found the SessionHelper class:
          http://e-docs.bea.com/wlp/docs81/javadoc/com/bea/p13n/usermgmt/SessionHelper.html
          I first tried to use it in one of my JSPs as follows:
          SessionHelper sh = new SessionHelper();
          String user = sh.getAuthenticatedUserId(request);
          But, in Workshop, I noticed that Workshop was not showing the SessionHelper methods when I typed "sh.".
          What I ended up using was JUST the following code:
          String SessionHelper.getAuthenticatedUserId(request);
          In other words, I was able to call the getAuthenticatedUserId() method without having to instantiate a SessionHelper object at all.
          I don't do much Java or JSP programming, but I'm kind of puzzled about this. How come I was able to use "SessionHelper", as if it was already an instantiated SessionHelper object?
          Or, does WebLogic automatically instantiate a SessionHelper object named "SessionHelper" for every JSP page? This is the only explanation I've been able to come up with by myself :(....
          Thanks,
          Jim

Answer 1

flukyspore wrote:
OK thanks for the quick response.
I am using using JSP EL to write my JSP's. Still learning JSTL.Bad idea. Learn JSTL.
I understand everything you're saying, except I can't seem to find the exact approach to load my ResultSet into an object or collection. Could you give me an example of how to do that. My ResultSet is one column of User ID's, they are integers. Something like this:
private static final String FIND_USER_ID_SQL = "SELECT USER_ID FROM USERS";
private Connection connection;
public List<Integer> findUserIds()
    List<Integet> userIds = new ArrayList<Integer>();
    Statement stmt = null;
    ResultSet rs = null;
    try
        stmt = connection.createStatement(sql);
        rs = stmt.executeQuery();
        while (rs.next())
            userIds.add(rs.getInt("USER_ID"));
    catch (SQLException e)
        e.printStackTrace();
    finally
        close(rs);
        close(stmt);
    return userIds;
}Fill in the blanks.
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