- Apache lucene indexing example driver#
- Apache lucene indexing example password#
- Apache lucene indexing example windows#
Apache lucene indexing example password#
DSpace makes use of Solr for indexing purposes.ĭb.username - the database password used in the previous stepĭb.password - the database password used in the previous step. jspui, /oai, etc.ĭspace.name - "Proper" name of your server, e.g.
Apache lucene indexing example windows#
dir - must be set to the (installation) directory (On Windows be sure to use forward slashes for the directory path! For example: "C:/dspace" is a valid path for Windows.)ĭspace.hostname - fully-qualified domain name of web server.ĭspace.baseUrl - complete URL of this server's DSpace home page but without any context eg. ** searching using logical AND operator */ ("=searching using logical OR operator=") ** searching using logical OR operator */ ("Results found > " + hits.totalHits) ĭoc = searcher.doc() MultiFieldQueryParser mqp = new MultiFieldQueryParser(filesToSearch, keywordAnalyzer) ** MultiFieldQueryParser is used to search multiple fields */ IndexSearcher searcher = new IndexSearcher(directoryReader) IndexReader directoryReader = DirectoryReader.open(FSDirectory.open(INDEX_DIRECTORY)) ** Looping through resultset and adding data to index file */įield = new IntField("id", rs.getInt("id"), ) įield = new StringField("name", rs.getString("name"), ) įield = new StringField("address", rs.getString("address"), ) įield = new StringField("details", rs.getString("details"), )
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IndexWriter iWriter = new IndexWriter(directory, writerConfig) But if you do this, increase the max heap size to the JVM (eg add -Xmx512m or -Xmx1g): * Optional: for better indexing performance, if you are indexing many documents, ** Create a new index in the directory, removing any previously indexed documents */ IndexWriterConfig writerConfig = new IndexWriterConfig(Version.LATEST, keywordAnalyzer) String sql = "select id,name,address,details from student_details" ĭirectory directory = FSDirectory.open(INDEX_DIRECTORY) Īnalyzer keywordAnalyzer = new KeywordAnalyzer()
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** Assuming database solr_test exists */Ĭonnection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/solr_test", "root", stmt = conn.createStatement() * to create index on simple database tableĬlass.forName("").newInstance() Public static final File INDEX_DIRECTORY = new File("IndexDirectory") * this is index directory path where all index file will be stored which lucene uses internally. * This is test example file to explore Lucene API So to run it successfully you need to configure any Java IDE with maven plugin or maven must installed externally You can see about it This is maven based project. Create one database named solr_test and one table named student_details with fields id INT, name varchar(10), address varchar(50) and details varchar(500).
Apache lucene indexing example driver#
You can any driver name according to database. To run this example successfully you need to manage these requirements. After that it will index that data and we can search indexed data very fast using Lucene API. This example will retrieve some information from database using simple JDBC connection.
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I am giving brief explanation here about this example. So here I am giving very simple example for indexing and then searching the particular data using Lucene API. I tried Google, but I was not able to find any example with Lucene API latest version (i.e. While working with my recent project I need to work with Lucene indexing.