Package scriptella.driver.lucene

Lucene Driver for Scriptella.

See: Description

Class Summary

Class	Description
Driver	Scriptella Driver for Lucene Search Engine.
LuceneConnection	Represents a connection to a Lucene index.
LuceneQuery	Query for Lucene indexed data.

Exception Summary

Exception	Description
LuceneProviderException	Thrown to indicate Lucene failure.

Package scriptella.driver.lucene Description

Lucene Driver for Scriptella.

This driver allows to search through Lucene v.2.x compatible indexed data.

Lucene scripting elements are implicit subclasses of Query base classe.

General information

Driver class:	scriptella.driver.lucene.Driver
Runtime dependencies:	lucene-core.jar

Driver Specific Properties

Name	Description	Required
fields	List of comma-separated fields to be searched	No, the Lucene default field 'contents' is used.
useMultiFieldQueryParser	whether MultiFieldQueryParser or QueryParser to be used	No, default value is false.
useLowercaseExpandedTerms	whether terms of wildcard, prefix, fuzzy and range queries are to be automatically lower-cased or not	No, default value is true.

Note: if MultiFieldQueryParser is used instead of QueryParser then all the query's terms must appear, but it doesn't matter in what fields they appear.

Example

    <connection id="search" driver="lucene" url="file://PATH_TO_YOUR_LUCENE_INDEX">
        fields=default_field
    </connection>
    <connection id="out" driver="text" url="tst://testfile"/>
    <query id="search">
        title:script luc*e
        <script connection-id="out">$rownum+'. '+$title+' : '+$default_field</script>
    </query>