The Definitive Guide to Jakarta Faces in Jakarta EE 10: Building Java-Based Enterprise Web Applications

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

B. Scholtz, A. TijmsThe Definitive Guide to Jakarta Faces in Jakarta EE 10https://doi.org/10.1007/978-1-4842-7310-4_5

5. Conversion and Validation

Bauke Scholtz¹   and Arjan Tijms²

(1)

Willemstad, Curaçao

(2)

Amsterdam, Noord-Holland, The Netherlands

 

At its core, Jakarta Faces as an HTML form–based MVC (model-view-controller ) framework basically needs to convert between Java objects (entities, beans, value objects, data transfer objects, and whatnot) and character sequences (strings) all the time. The HTTP request is basically broken down into plain vanilla strings representing headers and parameters, not into Java objects. The HTTP response is basically written ...