org.apache.lucene.facet.taxonomy

Class SearcherTaxonomyManager

java.lang.Object

<any>

org.apache.lucene.facet.taxonomy.SearcherTaxonomyManager

public class SearcherTaxonomyManager
extends <any>

Manages near-real-time reopen of both an IndexSearcher and a TaxonomyReader.

NOTE: If you call DirectoryTaxonomyWriter.replaceTaxonomy(Directory) then you must open a new SearcherTaxonomyManager afterwards.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SearcherTaxonomyManager.SearcherAndTaxonomy Holds a matched pair of IndexSearcher and TaxonomyReader

Constructor Summary

Constructors

Constructor and Description
SearcherTaxonomyManager(Directory indexDir, Directory taxoDir, SearcherFactory searcherFactory) Creates search and taxonomy readers over the corresponding directories.
SearcherTaxonomyManager(IndexReader reader, DirectoryTaxonomyReader taxoReader, SearcherFactory searcherFactory) Creates this from already opened IndexReader and DirectoryTaxonomyReader instances.
SearcherTaxonomyManager(IndexWriter writer, boolean applyAllDeletes, SearcherFactory searcherFactory, DirectoryTaxonomyWriter taxoWriter) Expert: creates near-real-time searcher and taxonomy reader from the corresponding writers, controlling whether deletes should be applied.
SearcherTaxonomyManager(IndexWriter writer, SearcherFactory searcherFactory, DirectoryTaxonomyWriter taxoWriter) Creates near-real-time searcher and taxonomy reader from the corresponding writers.

Method Summary

Modifier and Type	Method and Description
protected void	decRef(SearcherTaxonomyManager.SearcherAndTaxonomy ref)
protected int	getRefCount(SearcherTaxonomyManager.SearcherAndTaxonomy reference)
protected SearcherTaxonomyManager.SearcherAndTaxonomy	refreshIfNeeded(SearcherTaxonomyManager.SearcherAndTaxonomy ref)
protected boolean	tryIncRef(SearcherTaxonomyManager.SearcherAndTaxonomy ref)

Methods inherited from class java.lang.Object

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

Constructor Detail

SearcherTaxonomyManager

public SearcherTaxonomyManager(IndexWriter writer,
                               SearcherFactory searcherFactory,
                               DirectoryTaxonomyWriter taxoWriter)
                        throws java.io.IOException

Creates near-real-time searcher and taxonomy reader from the corresponding writers.

Throws:

java.io.IOException

SearcherTaxonomyManager

public SearcherTaxonomyManager(IndexWriter writer,
                               boolean applyAllDeletes,
                               SearcherFactory searcherFactory,
                               DirectoryTaxonomyWriter taxoWriter)
                        throws java.io.IOException

Expert: creates near-real-time searcher and taxonomy reader from the corresponding writers, controlling whether deletes should be applied.

Throws:

java.io.IOException

SearcherTaxonomyManager

public SearcherTaxonomyManager(Directory indexDir,
                               Directory taxoDir,
                               SearcherFactory searcherFactory)
                        throws java.io.IOException

Creates search and taxonomy readers over the corresponding directories.

NOTE: you should only use this constructor if you commit and call #maybeRefresh() in the same thread. Otherwise it could lead to an unsync'd IndexSearcher and TaxonomyReader pair.

Throws:

java.io.IOException

SearcherTaxonomyManager

public SearcherTaxonomyManager(IndexReader reader,
                               DirectoryTaxonomyReader taxoReader,
                               SearcherFactory searcherFactory)
                        throws java.io.IOException

Creates this from already opened IndexReader and DirectoryTaxonomyReader instances. Note that the incoming readers will be closed when you call #close.

Throws:

java.io.IOException

Method Detail

decRef

protected void decRef(SearcherTaxonomyManager.SearcherAndTaxonomy ref)
               throws java.io.IOException

Throws:

java.io.IOException

tryIncRef

protected boolean tryIncRef(SearcherTaxonomyManager.SearcherAndTaxonomy ref)
                     throws java.io.IOException

Throws:

java.io.IOException

refreshIfNeeded

protected SearcherTaxonomyManager.SearcherAndTaxonomy refreshIfNeeded(SearcherTaxonomyManager.SearcherAndTaxonomy ref)
                                                               throws java.io.IOException

Throws:

java.io.IOException

getRefCount

protected int getRefCount(SearcherTaxonomyManager.SearcherAndTaxonomy reference)