org.apache.lucene.facet.codecs.facet42
Class Facet42Codec

java.lang.Object
  org.apache.lucene.codecs.Codec
      org.apache.lucene.codecs.lucene42.Lucene42Codec
          org.apache.lucene.facet.codecs.facet42.Facet42Codec

All Implemented Interfaces:

NamedSPILoader.NamedSPI

public class Facet42Codec
extends Lucene42Codec

Same as Lucene42Codec except it uses Facet42DocValuesFormat for facet fields (faster-but-more-RAM-consuming doc values).

NOTE: this codec does not support facet partitions (see FacetIndexingParams.getPartitionSize()).

NOTE: this format cannot handle more than 2 GB of facet data in a single segment. If your usage may hit this limit, you can either use Lucene's default DocValuesFormat, limit the maximum segment size in your MergePolicy, or send us a patch fixing the limitation.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Facet42Codec()
Default constructor, uses FacetIndexingParams.DEFAULT.

Facet42Codec(FacetIndexingParams fip)
Initializes with the given FacetIndexingParams.

Method Summary

DocValuesFormat

getDocValuesFormatForField(String field)

Methods inherited from class org.apache.lucene.codecs.lucene42.Lucene42Codec

docValuesFormat, fieldInfosFormat, getPostingsFormatForField, liveDocsFormat, normsFormat, postingsFormat, segmentInfoFormat, storedFieldsFormat, termVectorsFormat

Methods inherited from class org.apache.lucene.codecs.Codec

availableCodecs, forName, getDefault, getName, reloadCodecs, setDefault, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Facet42Codec

public Facet42Codec()

Default constructor, uses FacetIndexingParams.DEFAULT.

Facet42Codec

public Facet42Codec(FacetIndexingParams fip)

Initializes with the given FacetIndexingParams. Returns the proper DocValuesFormat for the fields that are returned by FacetIndexingParams.getAllCategoryListParams().

Method Detail

getDocValuesFormatForField

public DocValuesFormat getDocValuesFormatForField(String field)

Overrides:

getDocValuesFormatForField in class Lucene42Codec