Book Image

Apache Solr 4 Cookbook

By : Rafał Kuć
Book Image

Apache Solr 4 Cookbook

By: Rafał Kuć

Overview of this book

<p>Apache Solr is a blazing fast, scalable, open source Enterprise search server built upon Apache Lucene. Solr is wildly popular because it supports complex search criteria, faceting, result highlighting, query-completion, query spell-checking, and relevancy tuning, amongst other numerous features.<br /><br />"Apache Solr 4 Cookbook" will show you how to get the most out of your search engine. Full of practical recipes and examples, this book will show you how to set up Apache Solr, tune and benchmark performance as well as index and analyze your data to provide better, more precise, and useful search data.<br /><br />"Apache Solr 4 Cookbook" will make your search better, more accurate and faster with practical recipes on essential topics such as SolrCloud, querying data, search faceting, text and data analysis, and cache configuration.<br /><br />With numerous practical chapters centered on important Solr techniques and methods, Apache Solr 4 Cookbook is an essential resource for developers who wish to take their knowledge and skills further. Thoroughly updated and improved, this Cookbook also covers the changes in Apache Solr 4 including the awesome capabilities of SolrCloud.</p>
Table of Contents (18 chapters)
Apache Solr 4 Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Nesting queries


Imagine a situation where you need a query nested inside another query. Let's imagine that you want to run a query using the standard request handler but you need to embed a query that is parsed by the DisMax query parser inside it. This is possible with Solr 4.0 and this recipe will show you how to do it.

How to do it...

  1. Let's start with a simple index that has the following structure (just add the following to the field section in your schema.xml file):

    <field name="id" type="string" indexed="true" stored="true" required="true" />
    <field name="title" type="text" indexed="true" stored="true" />
  2. Now let's look at the example data:

    <add>
     <doc>
      <field name="id">1</field>
      <field name="title">Revised solrcook book</field>
     </doc>
     <doc>
      <field name="id">2</field>
      <field name="title">Some book revised</field>
     </doc>
     <doc>
      <field name="id">3</field>
      <field name...