about war file deployment

[david wolf]

I am deploying my .war file to tomcat's webapps dir.My problem is that
I have to delete the expanded dir (I have deploy it before) first, then
the .war can be automatically expanded either at the start of the
tomcat or during the run of the tomcat.

It is so incovenient. Is there a way for me to drop a .war file under
webapps dir of tomcat without deleteing the dir deployed before?

Thanks,

David