Hello, I have a number of operations that I want to apply to a TokenStream, supplementing the original tokens with modified forms. For example, I want to reverse tokens, to allow prefix wildcard queries, and I want to index both lowercased and original terms.
I initially tried to wrap ReverseStringFilter and LowerCaseFilter with a generic 'preserve original token' filter, but this doesn't work, as TokenFilter chaining works by pulling tokens from parents, and I somehow need to push them into children. So I tried subclassing the filters instead, but of course they're both final… Is there already some way of doing this that I'm missing? Or will I just have to copy'n'paste RSFilter and LCFilter to my own package, and add the preserving logic myself? (I'm aware that there's a Solr filter, ReversedWildcardFilter, that will do part of this for me, but I was hoping to only use lucene classes). Thanks, Alan Woodward --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
