PhoenixmlDb.XQuery

FullTextEngine

Full-text search engine powered by Lucene.NET analyzers. Handles tokenization, stemming, and text analysis for XQuery Full-Text queries. Uses Lucene.NET for linguistic analysis (tokenizers, stemmers, stop words) while keeping index storage separate (for LMDB integration).

#FullTextEngine

Namespace: PhoenixmlDb.XQuery.FullText

#Methods

#Analyze(String,PhoenixmlDb.XQuery.FullText.FullTextAnalysisOptions)

Analyzes text into a sequence of terms using the specified language and options. Returns terms with their positions for phrase/proximity matching.

#ContainsPhrase(Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>,Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>)

Checks if source contains search terms as a contiguous phrase.

#ContainsText(String,String,PhoenixmlDb.XQuery.Ast.FtAnyAllOption,PhoenixmlDb.XQuery.FullText.FullTextAnalysisOptions)

Checks if a text contains the specified search terms according to full-text semantics. This is the core evaluation for "contains text" expressions.

#GetAnalyzer(PhoenixmlDb.XQuery.FullText.FullTextAnalysisOptions)

Gets the appropriate Lucene analyzer for the given options.

#ScoreBM25(Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>,Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>,Int32,Int32,Func<String,Int32>)

Computes a BM25 relevance score for a document against a query.

#WithinWindow(Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>,Collections.Generic.List<PhoenixmlDb.XQuery.FullText.AnalyzedTerm>,Int32)

Checks if terms appear within a window of N positions.