Hey Jack,
The only cordless nailer I am aware of is called a hammer. There are hoseless nailers that have very small engines that operate very small compressors to activate the driving mechanism. There are no hoseless flooring nailers. There are hoseless finish nailers and if you prefer, you can buy one to install that section of the floor that cannot be installed by a flooring nailer. There aren't adapters for finish nailers because flooring nailers use cleats or staples. Check this out.
http://www.hardwoodinstaller.com/hardwo ... -tools.htm
http://www.hardwoodinstaller.com/hardwo ... .php?t=417