I d like to create a class for creating a classical transaction. Overviewing lucene api , i can see commit/rollback/prepareCommit are just for the entire index not for partial modifications.
So i thought i could to use api writer.addIndexes as support: when i open a transaction i could create a temporary lucene directory .... make all persistent operation on it. reading operation inside transaction using a special reader using 2 indexes (main+temporary). If i remember correctly there is in lucene this special wrapper. when there is a threadlocal commit i copy directory (addIndexes api) to main directory , and i delete the temporary dir. What do you think? can it work? lucene api are thread safe?
