In this Lucene 6 tutorial, we will learn to use RAMDirectory to run quick examples of POCs because it is not intended to work with huge indexes.
Lucene is a full-text search library completely written in Java. It adds the content to full-text index and then allows you to perform queries on this index, returning results ranked by either the relevance to the query or sorted by an arbitrary field such as a document's last modified date.
Lucene index is inverted index, by design because it inverts a page-centric data structure (page->words) to a keyword-centric data structure (word->pages).
In Lucene, WildcardQuery can be used to execute wildcard based searches on lucene indexes. Learn to use WildcardQuery with example.
Lucene UnifiedHighlighter the highest performing highlighter, especially for large documents. Tutorial to highlight search terms in indexed documents/files.
In this lucene 6 example, we will learn to search indexed documents and highlight searched term in search result using SimpleHTMLFormatter.
In this lucene 6 example , we will learn to create index from text files and then search tokens within indexed documents with respective score of document.