org.dlese.dpc.index.queryParser
Class XMLQueryParser

java.lang.Object
  org.dlese.dpc.index.queryParser.XMLQueryParser

public class XMLQueryParser
extends Object

Creates a Lucene Query from an XML representation of a query. See sample Query XML file . Currently supports term, phrase, boolean and Lucene query syntax formatted queries, with option to set the boost factor assigned to any query (default boost is 1.0). If a Lucene query syntax based query may be found in the Query XML, then a Lucene QueryParser must be supplied, otherwise it may be ommitted.

Author:

John Weatherley

See Also:

VirtualSearchFieldMapper

Constructor Summary

XMLQueryParser()

Method Summary

static org.apache.lucene.search.Query	getLuceneQuery(Element queryElement, org.apache.lucene.queryParser.QueryParser queryParser) Gets the Lucene Query representation for the given XML Query starting at the Query element.
static org.apache.lucene.search.Query	getLuceneQuery(File queryXml, org.apache.lucene.queryParser.QueryParser queryParser) Gets the Lucene Query representation for the given XML Query.
static org.apache.lucene.search.Query	getLuceneQuery(String queryXml, org.apache.lucene.queryParser.QueryParser queryParser) Gets the Lucene Query representation for the given XML Query.
static org.apache.lucene.search.Query	getLuceneQuery(URL queryXml, org.apache.lucene.queryParser.QueryParser queryParser) Gets the Lucene Query representation for the given XML Query.
static String	getQueryString(String queryXml, org.apache.lucene.queryParser.QueryParser queryParser) Gets the Lucene query String representation for the given XML Query.

Methods inherited from class java.lang.Object

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

Constructor Detail

XMLQueryParser

public XMLQueryParser()

Method Detail

getQueryString

public static String getQueryString(String queryXml,
                                    org.apache.lucene.queryParser.QueryParser queryParser)
                             throws Exception

Gets the Lucene query String representation for the given XML Query.

Parameters:

queryXml - A XML Query

queryParser - QueryParser used to parse Lucene syntax based queries and tokenize the text

Returns:

The queryString value

Throws:

Exception - If error

getLuceneQuery

public static org.apache.lucene.search.Query getLuceneQuery(File queryXml,
                                                            org.apache.lucene.queryParser.QueryParser queryParser)
                                                     throws Exception

Gets the Lucene Query representation for the given XML Query.

Parameters:

queryXml - A file containing an XML Query

queryParser - QueryParser used to parse Lucene syntax based queries and tokenize the text

Returns:

The Lucene Query object representation of this XML Query

Throws:

Exception - If error

getLuceneQuery

public static org.apache.lucene.search.Query getLuceneQuery(URL queryXml,
                                                            org.apache.lucene.queryParser.QueryParser queryParser)
                                                     throws Exception

Gets the Lucene Query representation for the given XML Query.

Parameters:

queryXml - A URL to a file containing an XML Query

queryParser - QueryParser used to parse Lucene syntax based queries and tokenize the text

Returns:

The Lucene Query object representation of this XML Query

Throws:

Exception - If error

getLuceneQuery

public static org.apache.lucene.search.Query getLuceneQuery(String queryXml,
                                                            org.apache.lucene.queryParser.QueryParser queryParser)
                                                     throws Exception

Gets the Lucene Query representation for the given XML Query.

Parameters:

queryXml - An XML Query

queryParser - QueryParser used to parse Lucene syntax based queries and tokenize the text

Returns:

The Lucene Query object representation of this XML Query

Throws:

Exception - If error

getLuceneQuery

public static org.apache.lucene.search.Query getLuceneQuery(Element queryElement,
                                                            org.apache.lucene.queryParser.QueryParser queryParser)
                                                     throws Exception

Gets the Lucene Query representation for the given XML Query starting at the Query element.

Parameters:

queryElement - A dom4j representation of the Query element

queryParser - QueryParser used to parse Lucene syntax based queries and tokenize the text

Returns:

The Lucene Query object representation of this XML Query

Throws:

Exception - If error