April 2013
Beginner to intermediate
330 pages
7h 37m
English
Content preview from Oracle ADF 11gR2 Development Beginner's GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Validating and Using the Model Data
Validating data is important as business depends on the data that gets stored in the database. So how do we validate the data? Validation is something that makes sure that valid data is getting stored in the database. Validation could be anything from comparing two fields in a table to multiple validations on a single field involving different columns from a different table.
In any other framework, we would end up writing a lot of code even for a small validation. But in ADF, we do little or no coding at all, and most of the validations are achieved declaratively.
In this chapter, we will learn the following topics:
- Declarative validation
- Groovy expressions
- Learning about APIs
- Managing transactions ...
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