Chapter 5. Singleton Bean, Validations, and SOAP Web Services
Now that we saw how to expose and consume web services using REST, let's see how to use another popular technology, SOAP, to achieve the same results.
There's a wide (and sometimes wild) discussion about which one is better, and we aren't endorsing any of them by setting this specific order—the architectural factors and implications of such decisions are out of scope of this book.
Also, we already accessed the persistence layer provided by the server to connect and retrieve information from a database. In this chapter we will use this mechanism to insert data, detailing the transactional aspects involved, and will declare the bean validation rules to check the values being passed ...