org.apache.derby.optional.api

Class LuceneUtils

java.lang.Object

org.apache.derby.optional.api.LuceneUtils

public abstract class LuceneUtils
extends java.lang.Object

Utility methods for the Lucene optional tool.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LuceneUtils.DefaultIndexDescriptor The default LuceneIndexDescriptor

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TEXT_FIELD_NAME

Constructor Summary

Constructors

Constructor and Description
LuceneUtils()

Method Summary

Modifier and Type	Method and Description
static org.apache.lucene.util.Version	currentVersion() Get the version of the Lucene library on the classpath.
static org.apache.lucene.analysis.Analyzer	defaultAnalyzer() Get the default Analyzer associated with the database Locale.
static LuceneIndexDescriptor	defaultIndexDescriptor() Get the default index descriptor.
static org.apache.lucene.queryparser.classic.QueryParser	defaultQueryParser(org.apache.lucene.util.Version version, java.lang.String[] fieldNames, org.apache.lucene.analysis.Analyzer analyzer) Get the default, classic QueryParser.
static org.apache.lucene.analysis.Analyzer	getAnalyzerForLocale(java.util.Locale locale) Get the Analyzer associated with the given Locale.
static org.apache.lucene.analysis.Analyzer	standardAnalyzer() Get the StandardAnalyzer for parsing text.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TEXT_FIELD_NAME

public static final java.lang.String TEXT_FIELD_NAME

See Also:

Constant Field Values

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 java.sql.SQLException

Get the default Analyzer associated with the database Locale.

Throws:

java.sql.SQLException

getAnalyzerForLocale

public static org.apache.lucene.analysis.Analyzer getAnalyzerForLocale(java.util.Locale locale)
                                                                throws java.sql.SQLException

Get the Analyzer associated with the given Locale.

Throws:

java.sql.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,
                                                                                   java.lang.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().