First sorry for the post to here and the solr list, not sure where this is most appropriately asked but since there is no response there I figured I'd try here...
I have what I believe to be a fairly unique use case (as i have not seen it mentioned before) that I'm looking for some thoughts on. I currently have a need to filter terms based on a users authorizations, the implementation is currently based on https://github.com/jej2003/lucure-core/blob/master/src/main/java/com/lucure/core/codec/AccessFilteredDocsAndPositionsEnum.java The current implementation that we're using wraps a DocsAndPositionsEnum, but there is a bit of an unknown that I am not sure is or is not an issue around freq() and positions for a particular term. Specifically right now freq() is unmodified as is provided by the wrapped DocsAndPositionsEnum, but when a caller calls nextPosition and encounters a term with authorizations they don't have access to we simply call nextPosition on the wrapped DocsAndPositionsEnum. In this scenario we've said for instance that freq() was 2, but the caller only had access to 1. Currently there is no equivalent to the no more docs constant for positions so we are currently returning -1 (though we're considering changing to MAX_INTEGER). We've already seen possible issues with this in the phrase scorer (thus the reason we were considering returning MAX_INTEGER), but the only way I can truly see to remedy this in the current implementation is to get freq() right from the start, I unfortunately can't see how to do that without processing all of the items up front to get freq correct given the users authorizations. Ok, that was long so now for the question. Is returning a huge number (say MAX_INTEGER) from nextPosition() ok for situations like this? Is there specific places we should be looking to verify? I know ideally we instead would look to get the frequencies correct given the authorizations, but if there aren't any negative consequences to the current approach I would prefer to avoid the upfront processing. As always any feedback would be appreciated
