Comments on: Using the Java StringBuffer class ColdFusion – faster CSV files

By: Alex Ismail

Alex Ismail — Fri, 20 Feb 2009 21:40:11 +0000

Thank you, Ryan.

Meanwhile I found this version, which works too:

By: Ryan Stille

Ryan Stille — Fri, 20 Feb 2009 14:50:24 +0000

Alex, if the value contains a comma you need to enclose the whole string in double quotes (that is the most common way of handling it). I left this out of the example code for clarity.

For example you might change this line above:

To do this instead:

By: Alex Ismail

Alex Ismail — Thu, 19 Feb 2009 22:43:22 +0000

Great post, which covered exactly what I needed.

Could you share how to handle fields that contain commas with the Java class solution?

Thank you very much,

Alex

By: Mayoorathen

Mayoorathen — Tue, 31 Jul 2007 14:17:55 +0000

Well this code works with only CF 7. Can any suggest me a code will work with CF 6.1?

Thanks

By: Ryan Stille

Ryan Stille — Mon, 02 Apr 2007 15:22:10 +0000

Thats interesting Michael, can you explain why that works?

By: Michael Sharman

Michael Sharman — Mon, 02 Apr 2007 06:58:19 +0000

Hi Ryan,

If you method chain the Init() method when creating your StringBuffer object, you don’t need to use ToString() when outputting your variable.

i.e.

csvstr = createObject(“java”,”java.lang.StringBuffer”).init();

Great post, keep em’ coming!

By: James Moberg

James Moberg — Thu, 08 Mar 2007 20:28:12 +0000

Sorry… it didn’t keep the HTML and the reply form doesn’t offer the ability to preview a post (like Slashdot.org does) or automatically escape HTML using HTMLEditFormat()-like function.

Email Address,First Name,Last Name
#email#,#fname#,#lname#

By: James Moberg

James Moberg — Thu, 08 Mar 2007 20:24:24 +0000

I believe a simple cfsavecontent example would look like this (without quote and comma checking):

Email Address,First Name,Last Name
#email#,#fname#,#lname#

How does this method compare to using java stringbuffer?

On a recent project, I had to be able to export 100,000’s of records. Using CFMX, MSSQL and BCP.exe (via CFEXECUTE), the CSV export was almost instantaneous compared to trying to generate the export using CFMX or java (which was timing out and consuming too much RAM.)

BCP (Bulk Copy Program) for Microsoft SQL Server
http://msdn2.microsoft.com/en-us/library/aa174646(SQL.80).aspx

By: tony petruzzi

tony petruzzi — Thu, 08 Mar 2007 18:06:14 +0000

i remember when I first started using stringbuffer and was floored with how much performance I gained.

@ed

Give us an example. I’ve tried using cfsavecontent both and while it did give a performance increase it was no where’s near what stringbuffer gave.

By: Ed

Ed — Thu, 08 Mar 2007 17:32:55 +0000

Good post, thanks! You can also access Java Stringbuffers natively in CF using string concatenation via cfsavecontent instead of ‘&’-driven string concatenation.