Package org.apache.lucene.facet.taxonomy

Class FastTaxonomyFacetCounts

java.lang.Object

org.apache.lucene.facet.Facets

org.apache.lucene.facet.taxonomy.TaxonomyFacets

org.apache.lucene.facet.taxonomy.FastTaxonomyFacetCounts

public class FastTaxonomyFacetCounts
extends TaxonomyFacets

Computes facets counts, assuming the default encoding into DocValues was used.

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

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.facet.taxonomy.TaxonomyFacets

TaxonomyFacets.AggregatedValue

Field Summary

Fields inherited from class org.apache.lucene.facet.taxonomy.TaxonomyFacets

config, indexFieldName, taxoReader, valueComparator

Constructor Summary

Constructors

Constructor	Description
FastTaxonomyFacetCounts(String indexFieldName, TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc)	Create FastTaxonomyFacetCounts, using the specified indexFieldName for ordinals.
FastTaxonomyFacetCounts(String indexFieldName, IndexReader reader, TaxonomyReader taxoReader, FacetsConfig config)	Create FastTaxonomyFacetCounts, using the specified indexFieldName for ordinals, and counting all non-deleted documents in the index.
FastTaxonomyFacetCounts(TaxonomyReader taxoReader, FacetsConfig config, FacetsCollector fc)	Create FastTaxonomyFacetCounts, which also counts all facet labels.

Method Summary

Methods inherited from class org.apache.lucene.facet.taxonomy.TaxonomyFacets

aggregate, childrenLoaded, getAggregationValue, getAllChildren, getAllDims, getCount, getSpecificValue, getTopChildren, getTopChildrenForPath, getTopDims, initializeValueCounters, insertIntoQueue, makeTopOrdAndNumberQueue, missingAggregationValue, newAggregatedValue, rollup, setCount, setIncomingValue, siblingsLoaded, updateValueFromRollup, useHashTable, verifyDim

Methods inherited from class org.apache.lucene.facet.Facets

validateTopN

Methods inherited from class java.lang.Object

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

Constructor Detail

FastTaxonomyFacetCounts

public FastTaxonomyFacetCounts(TaxonomyReader taxoReader,
                               FacetsConfig config,
                               FacetsCollector fc)
                        throws IOException

Create FastTaxonomyFacetCounts, which also counts all facet labels.

Throws:

IOException

FastTaxonomyFacetCounts

public FastTaxonomyFacetCounts(String indexFieldName,
                               TaxonomyReader taxoReader,
                               FacetsConfig config,
                               FacetsCollector fc)
                        throws IOException

Create FastTaxonomyFacetCounts, using the specified indexFieldName for ordinals. Use this if you had set FacetsConfig.setIndexFieldName(java.lang.String, java.lang.String) to change the index field name for certain dimensions.

Throws:

IOException

FastTaxonomyFacetCounts

public FastTaxonomyFacetCounts(String indexFieldName,
                               IndexReader reader,
                               TaxonomyReader taxoReader,
                               FacetsConfig config)
                        throws IOException

Create FastTaxonomyFacetCounts, using the specified indexFieldName for ordinals, and counting all non-deleted documents in the index. This is the same result as searching on MatchAllDocsQuery, but faster

Throws:

IOException