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
>
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