Re: Shorten setString lines

From:
 "Chris ( Val )" <chrisval@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 13 Nov 2007 05:46:14 -0800
Message-ID:
<1194961574.609970.233900@v23g2000prn.googlegroups.com>
On Nov 13, 10:03 pm, RedGrittyBrick <RedGrittyBr...@SpamWeary.foo>
wrote:

franca...@yahoo.com wrote:

I have a PreparedStatement with alot of values to insert into an
Oracle Database.
Anyway to shorten the setString lines in a loop or any other way to
shorten this??

  //Database connection part here
  //......
  private PreparedStatement stmt;

  public void houseMethod(BeanInfo theObject)
  {
        stmt = connection.prepareStatement("Insert into MainTable
(house, zipcode, city, county, phone, mortgage, tax, insurance, state,
land) values (?,?,?,?,?,?,?,?,?,?)");
        stmt.setString(1, theObject.getHouse());
        stmt.setString(2, theObject.getZipcode());
        stmt.setString(3, theObject.getCity());
        stmt.setString(4, theObject.getCounty());
        stmt.setString(5, theObject.getPhone());
        stmt.setString(6, theObject.getMortgage());
        stmt.setString(7, theObject.getTax());
        stmt.setString(8, theObject.getInsurance());
        stmt.setString(9, theObject.getState());
        stmt.setString(10, theObject.getLand());
        stmt.executeUpdate();
   }


I suppose if you implemented a `String getIndexedString(int index)` in
theObject's class, you could use a for loop.

It feels a bit brittle to me. I'm sure this idea deserves to be shot
down in flames :-)


Well, let's put it this way:

If we applied the "Occam's Razor" principle and consulted
the person responsible for maintaining that code, I think
that the original piece of code would be a clear winner.

Cleverness can sometimes cause a maintainability nightmare.

I think the first approach is quite clear and concise, though
I would reconsider the names of the identifiers :-)

Hmmm,
    String[] columnNames = { "house", "zipcode" ... };
    String sql = "insert into MainTable (" + makeList(coumnNames) + ...
    for (int i = 1; i <= columnNames.length; i++) {
        stmt.setString(i, theObject.getNamedString(columnNames[i-1]));
    }

I'll get my coat.


Hey, it's the thought that counts :-)

--
Chris

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