Search Lucene Docs. To search lucene documents, you need to create org.apache.lucene.search.Query instance using org.apache.lucene.queryparser.classic.QueryParser class. IndexSearcher.seach(Query) returns org.apache.lucene.search.TopDocs which represents the query result.
What is Lucene used for?
Lucene is used by many different modern search platforms, such as Apache Solr and ElasticSearch, or crawling platforms, such as Apache Nutch for data indexing and searching. Once you create maven project in eclipse, include following lucene dependencies in pom.xml.
Which version of Lucene is used by Elasticsearch?
Lucene is used by many different modern search platforms, such as Apache Solr and ElasticSearch, or crawling platforms, such as Apache Nutch for data indexing and searching. Once you create maven project in eclipse, include following lucene dependencies in pom.xml. I am using Lucene 6.6.0 version.
How to write Lucene documents to index using indexwriter?
To write lucene documents to index, use IndexWriter.addDocuments (documents) method. Once you execute above code in your computer, you will see lucene indexes created in configured folder path.
How to create an indexsearcher in Lucene?
Follow these steps to create a IndexSearcher − Step 1 − Create object of IndexSearcher. Step 2 − Create a Lucene directory which should point to location where indexes are to be stored. Step 3 − Initialize the IndexSearcher object created with the index directory.
What is the index directory path in Lucene?
An index directory path should be created as E:\\Lucene\\Index. After running the indexing program in the chapter Lucene – Indexing Process, you can see the list of index files created in that folder.
How to create a queryparser in Lucene?
QueryParser class parses the user entered input into Lucene understandable format query. Follow these steps to create a QueryParser − Step 1 − Create object of QueryParser. Step 2 − Initialize the QueryParser object created with a standard analyzer having version information and index name on which this query is to be run.
