An engineer with advanced concurrency debugging and design skills.Specifically, the types of people we need to get Lucene.NET 4.8.0 out of beta are: If you wish to contribute your time, please see the Contributing page to get started. All of the Lucene.NET modules are ported from Java, but we are still missing a few key features and have much work to do on our biggest dependency, ICU4N, to get it production ready. Lucene.NET 4.8.0 is a large project that has been under development since 2014, and a few volunteers have contributed more than 5000 hours of their time to help. Lucene-cli Documentation Lucene.NET Needs Your Help Once installed, you can explore the commands and options that are available by entering the command lucene. NOTE: The version of the CLI you install should match the version of Lucene.NET you use. Always be sure to back up your index before running any commands against it!ĭotnet tool install lucene-cli -g -version 4.8.0-beta00015 It contains all of the demos as well as tools maintaining your Lucene.NET index, featuring operations such as splitting, merging, listing segment info, fixing, deleting segments, upgrading, etc. There is also a dotnet command line tool available on NuGet. There are several demos implemented as simple console applications that can be copied and pasted into Visual Studio or compiled on the command line in the project. - Framework for testing Lucene-based applications.- Auto-suggest and Spell-checking support.- Various third party contributions and new ideas.- Text to Query parsers and parsing framework.- Filters and Queries that add to core Lucene.- Index tools and other miscellaneous code.- Single-document in-memory index implementation. - Index-time and Query-time joins for normalized content.- Specialized ICU (International Components for Unicode) Analyzers and Highlighters.- Highlights search keywords in results.- Collectors for grouping search results.- Faceted indexing and search capabilities.- Dynamically computed values to sort/facet/search on based on a pluggable grammar.- Analyzer for indexing phonetic signatures (for sounds-alike search).- Analyzer for dictionary stemming, built-in Polish dictionary.- Analyzers for indexing content in different languages and domains.See the API documentation for Lucene.NET 4.8.0. Var hits = searcher.Search(phrase, 20 /* top 20 */).ScoreDocs Var searcher = new IndexSearcher(reader) Using var reader = writer.GetReader(applyAllDeletes: true) Writer.Flush(triggerMerge: false, applyAllDeletes: false) Ĭonstruct a Query // Search with a phraseįetch the Results // Re-use the writer to get real-time updates StringField indexes but doesn't tokenize Using var writer = new IndexWriter(dir, indexConfig) įavoritePhrase = "The quick brown fox jumps over the lazy dog" Var indexConfig = new IndexWriterConfig(AppLuceneVersion, analyzer) Var analyzer = new StandardAnalyzer(AppLuceneVersion) Create an analyzer to process the text Using var dir = FSDirectory.Open(indexPath) Var indexPath = Path.Combine(basePath, "index") Var basePath = Environment.GetFolderPath(Į) Construct a machine-independent path for the index Imports using Ĭreate an Index and Define a Text Analyzer // Ensures index backward compatibilityĬonst LuceneVersion AppLuceneVersion = LuceneVersion.LUCENE_48 Lucene.NET is a C# port of the popular Java Lucene search engine framework from The Apache Software Foundation, targeting the. It can be used to easily add search capabilities to applications. Lucene.NET is a full-text search engine library capable of advanced text analysis, indexing, and searching.
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