If you create a single JAR file out of multiple Lucene JAR files use a tool like Maven Shade plugin, otherwise, required metadata propreties (META-INF/services) files in the JAR files are not correctly merged together.
----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Wei Wang [mailto:welshw...@gmail.com] > Sent: Sunday, April 14, 2013 11:30 PM > To: java-user@lucene.apache.org > Subject: Re: DiskDocValuesFormat > > Hi Adrien, > > The Lucene42Codec works well to generate the index with > DiskDocValuesFormat. But when I tried to merge the index segments by > calling: > > IndexWriter iw = new IndexWriter(directory, iw_config); ... > iw.forceMerge(1); > > I got the following error message: > > Caused by: java.lang.IllegalArgumentException: A SPI class of type > org.apache.lucene.codecs.DocValuesFormat with name 'Disk' does not exist. > You need to add the corresponding JAR file supporting this SPI to your > classpath.The current classpath supports the following names: [Lucene42] > > Any hint on this classpath problem? I have created a single jar file that has > all > necessary dependencies, such as lucene-codecs-4.2.0.jar. And I assume the > indexing step works well, so Lucene already knows the format with name > 'Disk'. > > Thanks. > > 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 > > > > --------------------------------------------------------------------- > > 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
