Package org.apache.lucene.facet.taxonomy.directory

Class ReindexingEnrichedDirectoryTaxonomyWriter

java.lang.Object

org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter

org.apache.lucene.facet.taxonomy.directory.ReindexingEnrichedDirectoryTaxonomyWriter

All Implemented Interfaces:

Closeable, AutoCloseable, TaxonomyWriter, TwoPhaseCommit

public class ReindexingEnrichedDirectoryTaxonomyWriter
extends DirectoryTaxonomyWriter

Use this TaxonomyWriter to append arbitrary fields to the ordinal documents in the taxonomy. To update the custom data added to the docs, it is required to reindexWithNewOrdinalData(BiConsumer).

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.directory.DirectoryTaxonomyWriter

DirectoryTaxonomyWriter.DiskOrdinalMap, DirectoryTaxonomyWriter.MemoryOrdinalMap, DirectoryTaxonomyWriter.OrdinalMap

Field Summary

Fields inherited from class org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter

INDEX_EPOCH

Constructor Summary

Constructors

Constructor	Description
ReindexingEnrichedDirectoryTaxonomyWriter(Directory d, BiConsumer<FacetLabel,Document> ordinalDataAppender)	Create a taxonomy writer that will allow editing the ordinal docs before indexing them.

Method Summary

Modifier and Type	Method	Description
protected void	enrichOrdinalDocument(Document d, FacetLabel categoryPath)	Add fields specified by the ordinalDataAppender to the provided Document.
void	reindexWithNewOrdinalData(BiConsumer<FacetLabel,Document> ordinalDataAppender)	Delete the existing taxonomy index and recreate it using new ordinal data.

Methods inherited from class org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyWriter

addCategory, addTaxonomy, close, closeResources, commit, createIndexWriterConfig, defaultTaxonomyWriterCache, ensureOpen, findCategory, getCache, getDirectory, getLiveCommitData, getParent, getSize, getTaxonomyEpoch, openIndexWriter, prepareCommit, replaceTaxonomy, rollback, setCacheMissesUntilFill, setLiveCommitData, useNumericDocValuesForOrdinals

Methods inherited from class java.lang.Object

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

Constructor Details

ReindexingEnrichedDirectoryTaxonomyWriter

public ReindexingEnrichedDirectoryTaxonomyWriter(Directory d,
 BiConsumer<FacetLabel,Document> ordinalDataAppender)
                                          throws IOException

Create a taxonomy writer that will allow editing the ordinal docs before indexing them.

Throws:

IOException

Method Details

enrichOrdinalDocument

protected void enrichOrdinalDocument(Document d,
 FacetLabel categoryPath)

Add fields specified by the ordinalDataAppender to the provided Document.

Overrides:

enrichOrdinalDocument in class DirectoryTaxonomyWriter

reindexWithNewOrdinalData

public void reindexWithNewOrdinalData(BiConsumer<FacetLabel,Document> ordinalDataAppender)
                               throws IOException

Delete the existing taxonomy index and recreate it using new ordinal data. The ordinals themselves will be preserved, so the caller does not need to update references to them in the main index.

Throws:

IOException