org.apache.lucene.xmlparser
Class QueryTemplateManager

java.lang.Object
  org.apache.lucene.xmlparser.QueryTemplateManager

public class QueryTemplateManager
extends Object

Provides utilities for turning query form input (such as from a web page or Swing gui) into Lucene XML queries by using XSL templates. This approach offers a convenient way of externalizing and changing how user input is turned into Lucene queries. Database applications often adopt similar practices by externalizing SQL in template files that can be easily changed/optimized by a DBA. The static methods can be used on their own or by creating an instance of this class you can store and re-use compiled stylesheets for fast use (e.g. in a server environment)

Constructor Summary

QueryTemplateManager()

QueryTemplateManager(InputStream xslIs)

Method Summary

void	addDefaultQueryTemplate(InputStream xslIs)
void	addQueryTemplate(String name, InputStream xslIs)
Document	getQueryAsDOM(Properties formProperties)
static Document	getQueryAsDOM(Properties formProperties, InputStream xslIs) Slow means of constructing query - parses stylesheet from input stream
Document	getQueryAsDOM(Properties formProperties, String queryTemplateName)
static Document	getQueryAsDOM(Properties formProperties, Templates template) Fast means of constructing query using a cached,precompiled stylesheet
String	getQueryAsXmlString(Properties formProperties)
static String	getQueryAsXmlString(Properties formProperties, InputStream xslIs) Slow means of constructing query parsing a stylesheet from an input stream
String	getQueryAsXmlString(Properties formProperties, String queryTemplateName)
static String	getQueryAsXmlString(Properties formProperties, Templates template) Fast means of constructing query using a precompiled stylesheet
static Templates	getTemplates(InputStream xslIs) Parses a query stylesheet for repeated use
static void	transformCriteria(Properties formProperties, InputStream xslIs, Result result) Slower transformation using an uncompiled stylesheet (suitable for development environment)
static void	transformCriteria(Properties formProperties, Templates template, Result result) Fast transformation using a pre-compiled stylesheet (suitable for production environments)
static void	transformCriteria(Properties formProperties, Transformer transformer, Result result)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryTemplateManager

public QueryTemplateManager()

QueryTemplateManager

public QueryTemplateManager(InputStream xslIs)
                     throws TransformerConfigurationException,
                            ParserConfigurationException,
                            SAXException,
                            IOException

Throws:

TransformerConfigurationException

ParserConfigurationException

SAXException

IOException

Method Detail

addDefaultQueryTemplate

public void addDefaultQueryTemplate(InputStream xslIs)
                             throws TransformerConfigurationException,
                                    ParserConfigurationException,
                                    SAXException,
                                    IOException

Throws:

TransformerConfigurationException

ParserConfigurationException

SAXException

IOException

addQueryTemplate

public void addQueryTemplate(String name,
                             InputStream xslIs)
                      throws TransformerConfigurationException,
                             ParserConfigurationException,
                             SAXException,
                             IOException

Throws:

TransformerConfigurationException

ParserConfigurationException

SAXException

IOException

getQueryAsXmlString

public String getQueryAsXmlString(Properties formProperties,
                                  String queryTemplateName)
                           throws SAXException,
                                  IOException,
                                  ParserConfigurationException,
                                  TransformerException

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsDOM

public Document getQueryAsDOM(Properties formProperties,
                              String queryTemplateName)
                       throws SAXException,
                              IOException,
                              ParserConfigurationException,
                              TransformerException

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsXmlString

public String getQueryAsXmlString(Properties formProperties)
                           throws SAXException,
                                  IOException,
                                  ParserConfigurationException,
                                  TransformerException

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsDOM

public Document getQueryAsDOM(Properties formProperties)
                       throws SAXException,
                              IOException,
                              ParserConfigurationException,
                              TransformerException

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsXmlString

public static String getQueryAsXmlString(Properties formProperties,
                                         Templates template)
                                  throws SAXException,
                                         IOException,
                                         ParserConfigurationException,
                                         TransformerException

Fast means of constructing query using a precompiled stylesheet

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsXmlString

public static String getQueryAsXmlString(Properties formProperties,
                                         InputStream xslIs)
                                  throws SAXException,
                                         IOException,
                                         ParserConfigurationException,
                                         TransformerException

Slow means of constructing query parsing a stylesheet from an input stream

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsDOM

public static Document getQueryAsDOM(Properties formProperties,
                                     Templates template)
                              throws SAXException,
                                     IOException,
                                     ParserConfigurationException,
                                     TransformerException

Fast means of constructing query using a cached,precompiled stylesheet

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getQueryAsDOM

public static Document getQueryAsDOM(Properties formProperties,
                                     InputStream xslIs)
                              throws SAXException,
                                     IOException,
                                     ParserConfigurationException,
                                     TransformerException

Slow means of constructing query - parses stylesheet from input stream

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

transformCriteria

public static void transformCriteria(Properties formProperties,
                                     InputStream xslIs,
                                     Result result)
                              throws SAXException,
                                     IOException,
                                     ParserConfigurationException,
                                     TransformerException

Slower transformation using an uncompiled stylesheet (suitable for development environment)

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

transformCriteria

public static void transformCriteria(Properties formProperties,
                                     Templates template,
                                     Result result)
                              throws SAXException,
                                     IOException,
                                     ParserConfigurationException,
                                     TransformerException

Fast transformation using a pre-compiled stylesheet (suitable for production environments)

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

transformCriteria

public static void transformCriteria(Properties formProperties,
                                     Transformer transformer,
                                     Result result)
                              throws SAXException,
                                     IOException,
                                     ParserConfigurationException,
                                     TransformerException

Throws:

SAXException

IOException

ParserConfigurationException

TransformerException

getTemplates

public static Templates getTemplates(InputStream xslIs)
                              throws ParserConfigurationException,
                                     SAXException,
                                     IOException,
                                     TransformerConfigurationException

Parses a query stylesheet for repeated use

Throws:

ParserConfigurationException

SAXException

IOException

TransformerConfigurationException