Package org.apache.derby.optional.api

Class LuceneUtils

  • public abstract class LuceneUtils
extends Object

    Utility methods for the Lucene optional tool.

    • Constructor Detail

      • LuceneUtils

        public LuceneUtils()

    • Method Detail

      • currentVersion

        public static org.apache.lucene.util.Version currentVersion()
        Get the version of the Lucene library on the classpath.

      • defaultAnalyzer

        public static org.apache.lucene.analysis.Analyzer defaultAnalyzer()
                                                           throws SQLException

        Get the default Analyzer associated with the database Locale.

        Throws:
        SQLException

      • getAnalyzerForLocale

        public static org.apache.lucene.analysis.Analyzer getAnalyzerForLocale​(Locale locale)
                                                                throws SQLException

        Get the Analyzer associated with the given Locale.

        Throws:
        SQLException

      • standardAnalyzer

        public static org.apache.lucene.analysis.Analyzer standardAnalyzer()

        Get the StandardAnalyzer for parsing text.

      • defaultQueryParser

        public static org.apache.lucene.queryparser.classic.QueryParser defaultQueryParser​(org.apache.lucene.util.Version version,
                                                                                   String[] fieldNames,
                                                                                   org.apache.lucene.analysis.Analyzer analyzer)

        Get the default, classic QueryParser.

      • defaultIndexDescriptor

        public static LuceneIndexDescriptor defaultIndexDescriptor()

        Get the default index descriptor. This has a single field named TEXT, a defaultAnalyzer() and a defaultQueryParser().