You'll have to synchronize on the workbook instance in you code. There is no magic solution here i suppose.
On Sun, 2003-02-02 at 11:42, Brant Schlatzer wrote: > Hi- > > I'm fairly new to POI, and in order to learn about it (in particular HSSF), I've > been hacking on a simple web app to collect fields from a registration form and > append them to a "registrations.xls" file. I've had no problem getting the basic > functionality together, but it occurred to me that since in order to add new > "registrations" I'm reading the file into memory and using: > > HSSFRow row = sheet.createRow((short)(sheet.getLastRowNum() + 1)); > > ...to append a row, it's possible that another instance of my class might well > add a row before I call wb.write(), resulting in one instance stomping on the > row created by the other. Could anyone suggest an appropriate means of locking > the file to be written, or perhaps an alternative approach? Is there a simpler > means to just "append" any new rows at wb.write() time as opposed to assigning > them explicit numbers? > > Thanks in advance for your help! > > -Brant > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
