19 Querying JPA with Querydsl
This chapter covers
- Introducing Querydsl
- Creating a Querydsl application
- Querying a database with Querydsl
Querying a database is essential to retrieve information that meets certain criteria. This chapter focuses on Querydsl, one of the alternatives for querying a database from Java programs. The “dsl” part of the Querydsl name refers to domain specific languages (DSLs), which are languages dedicated to particular application domains. For example, querying a database is such a domain.
In this chapter we’ll examine the most important capabilities of Querydsl, and we’ll apply them in a Java persistence project. For comprehensive documentation of Querydsl, see its website: http://querydsl.com/.
19.1 Introducing Querydsl ...
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