DocValues.getSortedNumeric is indeed not really useful for high-level code,
such as you example which is getting the sort values for each top hit.
However, if you wanted to implement lower level functionality like building
a histogram of the prices of all matching documents, you would need to
build a custom collector and use these sorted numeric doc values to get the
prices.
Le ven. 27 mai 2016 à 14:10, Chitra R <chithu.r...@gmail.com> a écrit :
> Hi,
>
> i have achieved the same sorting using
>
> Sort sort = new Sort(new SortedNumericSortField("Numericdoc_price",
> > SortField.Type.LONG,true));
> > int maxDoc = searcher.getIndexReader().maxDoc();
> > TopFieldDocs topdocs =searcher.search(query, 10,sort);
> >
> > for (ScoreDoc scoreDoc : topdocs.scoreDocs) {
> > doc = reader.document(scoreDoc.doc);
> > System.out.println(scoreDoc);
> > }
> >
>
>
> So what is the purpose of sortedDocValues obtained
> from DocValues.getSortedNumeric(atomicReader, "Numericdoc_price");
>
>
>
>
>
> Thanks,
> Chitra
>
>
> On Fri, May 27, 2016 at 3:18 PM, Chitra R <chithu.r...@gmail.com> wrote:
>
> > Hi,
> > Actually I like to print the sorted numeric list from the
> > sortedDocValues and I dont know which api have to use . Could you please
> > help me to achieve this?
> >
> >
> > Thanks,
> > Chitra
> >
> > On Thu, May 26, 2016 at 8:17 PM, Michael McCandless <
> > luc...@mikemccandless.com> wrote:
> >
> >> This looks about right ... did something go wrong?
> >>
> >> Mike McCandless
> >>
> >> http://blog.mikemccandless.com
> >>
> >> On Thu, May 26, 2016 at 9:29 AM, Chitra R <chithu.r...@gmail.com>
> wrote:
> >>
> >> > Hi,
> >> > I am new to lucene. Anyone please explain how to sort the
> numeric
> >> > values by SortedNumericDocValuesField?
> >> >
> >> > I tried like this using Lucene 4.10.4:
> >> >
> >> > doc.add(new SortedNumericDocValuesField("Numericdoc_price", 1L));
> >> > doc.add(new SortedNumericDocValuesField("Numericdoc_price", 15L));
> >> > ..
> >> > for (AtomicReaderContext context : indexReader.leaves()) {
> >> > AtomicReader atomicReader = context.reader();
> >> > SortedNumericDocValues
> >> > sortedDocValues=DocValues.getSortedNumeric(atomicReader,
> >> > "Numericdoc_price");
> >> > }
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > Thanks,
> >> > Chitra
> >> >
> >>
> >
> >
>
