Hi Adrien,
Thanks for your example. Really helpful!
Wei
On Sat, Apr 13, 2013 at 4:25 AM, Adrien Grand <jpou...@gmail.com> wrote:
> Hi Wei,
>
> On Sat, Apr 13, 2013 at 7:44 AM, Wei Wang <welshw...@gmail.com> wrote:
> > I am trying to use DiskDocValuesFormat for a particular
> > BinaryDocValuesField. It seems there is no good examples showing how to
> do
> > this. The only hint I got from various docs and forums is set some codec
> in
> > IndexWriter. Could someone give a few lines of code snippet and show how
> to
> > set DiskDocValuesFormat?
>
> Lucene42Codec can be extended to specify the doc values format to use
> on a per-field basis. For example:
>
> final Codec codec = new Lucene42Codec() {
> final Lucene42DocValuesFormat memoryDVFormat = new
> Lucene42DocValuesFormat();
> final DiskDocValuesFormat diskDVFormat = new DiskDocValuesFormat();
> @Override
> public DocValuesFormat getDocValuesFormatForField(String field) {
> if ("dv_mem".equals(field)) {
> // use Lucene42 for "dv_mem"
> return memoryDVFormat;
> } else {
> // use Disk otherwise
> return diskDVFormat;
> }
> }
> };
>
> Then just pass this Codec instance to your IndexWriterConfig.
>
> --
> Adrien
>
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