In this chapter, we saw various techniques to index data. We went through index handlers and how they help us in indexing data using XML and JSON formats. We made use of the Solr Cell framework to index binary data formats. We then saw how language detection works. We finally touched on various client APIs available for indexing, though this will be covered in detail in a later chapter.

In the next chapter, we will see in detail how searching works in Solr. We will cover faceting, spell checking, highlighting, ranking, pagination, and many other features related to searches.