Oops:
StringBuffer ret = new StringBuffer("");
;)
-----Original Message-----
From: Carl Olivier [mailto:[EMAIL PROTECTED]
Sent: 25 May 2004 03:43 PM
To: 'Tomcat Users List'
Subject: RE: PrintWriter performance
I would definitely use the second option. If you wanted the first I would
also change it to be:
PrintWriter out = response.getWriter();
StringBuffer ret = "";
for (count = 0; rs.next(); count++)
ret.append(rs.getString("column_name")); // result of db
query
out.print(ret.toString());
out.close();
Carl
-----Original Message-----
From: Rostislav Svoboda [mailto:[EMAIL PROTECTED]
Sent: 25 May 2004 03:40 PM
To: Tomcat Users List
Subject: PrintWriter performance
Hi all
I'd like to ask you if there's a significant difference in performance
between:
PrintWriter out = response.getWriter();
String ret = "";
for (count = 0; rs.next(); count++)
ret += rs.getString("column_name"); // result of db query
out.print(ret);
out.close();
and:
PrintWriter out = response.getWriter();
for (count = 0; rs.next(); count++)
out.print(rs.getString("column_name"); // result of db query
out.close();
I know I have the extra string which is (theoretically) a slow-down but I
don't know anything about the way how tomcat handles with large strings (in
my
case about 1MB), if is there any limited buffering etc.
I know as well I can test it by myself very easilly but I hope someone's
gonna give me a bit of explanation along with 20 funny stories etc. :)
EOF & thx
Bost
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