Thank you, Mike. I didn't state why I need this. I want to be able to send a query to some QueryParser that understands "field:1" regardless if 'field' was added as StringField or LongField, for example. I do not want to rely on schema information if I can avoid it, and rather use a smart QueryParser. What would be the best approach to implement this ?
Kind regards, Rolf. On Thu, Jan 31, 2013 at 1:07 PM, Michael McCandless <luc...@mikemccandless.com> wrote: > Getting the FieldInfos from each AtomicReader is the right approach! > > But, FieldInfos won't tell you which XXXField class was used for the > indexing: that information is not fully preserved ... > > Mike McCandless > > http://blog.mikemccandless.com > > On Thu, Jan 31, 2013 at 6:33 AM, Rolf Veen <rolf.v...@gmail.com> wrote: >> Hello, all. >> >> I want to get a list of field names and types out of an IndexSearcher >> or IndexReader (not necesarily Atomic). By type I mean if it was >> stored as StringField, LongField, etc. Is this possible ? >> >> I could get the field names this way, probably not the simplest one >> to get a unified field list: >> >> IndexReader reader = searcher.getIndexReader(); >> >> for (AtomicReaderContext rc : reader.leaves()) { >> AtomicReader ar = rc.reader(); >> FieldInfos fis = ar.getFieldInfos(); >> for (FieldInfo fi : fis) >> System.out.println(fi.name); >> } >> >> >> Kind regards, >> Rolf. >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
