Does Lucene support the XOR operator?
XOR is not a built-in operation. However in a few lines of code (a custom subclass of BooleanQuery) I was able to implement it. I built this functionality under contract and I'm still working out the details of how much of my work can be contributed back, most of which is custom and isn't generalizable, but some like an XOR query is general purpose enough.
However, I will give some hints - all the details of providing a custom Similarity has been been mentioned in this list - thats the trick.
Erik
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
