How are you storing the id field? A wild guess might be that this error might be caused by having some documents with id stored, perhaps, as a StringField or TextField and some as an IntField.
-- Ian. On Wed, Jan 14, 2015 at 2:07 PM, Sascha Janz <sascha.j...@gmx.net> wrote: > > hello, > > i am using lucene 4.6. in my query i use a collector to get field values. > > setNextReader is implemented as below. > > public void setNextReader(AtomicReaderContext context) throws IOException { > > cacheIDs = FieldCache.DEFAULT.getInts(context.reader(), "id", true); > } > > and collect > > public void collect(int docnr) throws IOException { > int id = 0; > id = cacheIDs .get(docnr); > ... > > > } > > But sometimes i got an exception like > > 2015-01-12 13:32:49,342 [ID:1e8e1dff-9a57-11e4-a697-c29020524153]ERROR > (org.apache.lucene.search.join.Collector) - Error getInts > java.lang.ArrayIndexOutOfBoundsException: 0 > at > org.apache.lucene.util.NumericUtils.getPrefixCodedIntShift(NumericUtils.java:208) > at org.apache.lucene.util.NumericUtils$2.accept(NumericUtils.java:493) > at > org.apache.lucene.index.FilteredTermsEnum.next(FilteredTermsEnum.java:241) > at > org.apache.lucene.search.FieldCacheImpl$Uninvert.uninvert(FieldCacheImpl.java:307) > at > org.apache.lucene.search.FieldCacheImpl$IntCache.createValue(FieldCacheImpl.java:678) > at > org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:211) > at > org.apache.lucene.search.FieldCacheImpl.getInts(FieldCacheImpl.java:570) > at > org.apache.lucene.search.FieldCacheImpl$IntCache.createValue(FieldCacheImpl.java:631) > at > org.apache.lucene.search.FieldCacheImpl$Cache.get(FieldCacheImpl.java:211) > at > org.apache.lucene.search.FieldCacheImpl.getInts(FieldCacheImpl.java:570) > at > org.apache.lucene.search.FieldCacheImpl.getInts(FieldCacheImpl.java:545) > at > org.apache.lucene.search.join.MyCollector.setNextReader(MyCollector.java:264) > > > when i try to get the field the normal way like this > > Document doc = reader.document(docnr); > String sid = doc.get("id"); > int id = Integer.parseInt(sid); > > everything is fine. > > am i doing something wrong? > > regards > Sascha > > --------------------------------------------------------------------- > 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