Professional Java for Web Applications

Chapter 23Searching for Data with JPA and Hibernate Search

IN THIS CHAPTER

• Searching basics
• How to locate objects with advanced criteria
• Using full-text indexes with JPA
• Using Apache Lucene and Hibernate Search to index your data

WROX.COM CODE DOWNLOADS FOR THIS CHAPTER

You can find the wrox.com code downloads for this chapter at http://www.wrox.com/go/projavaforwebapps on the Download Code tab. The code for this chapter is divided into the following major examples:

• Advanced-Criteria
• Customer-Support-v17 Project
• Search-Engine Project

NEW MAVEN DEPENDENCY FOR THIS CHAPTER

In addition to the Maven dependencies introduced in previous chapters, you also need the following Maven dependency only for the section that covers Apache Lucene, Hibernate Search, and the Search-Engine project.

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-search-orm</artifactId>
            <version>4.5.0.Final</version>
            <scope>compile</scope>
        </dependency>

AN INTRODUCTION TO SEARCHING

Searching through data takes many different forms. You might use a tool like grep, find, Agent Ransack, Spotlight, or Windows Search to locate a file on your hard drive. You could look for matching filenames or matching file contents. Perhaps most familiar to you, searching might involve opening your web browser and using a popular search tool such as Google to find content on the Internet. Or maybe you have a Gmail account and you use the search bar at the top of a Gmail page to find e-mails and create filters ...