Using ADF BC Declarative Built-in Rules (Part 6 of 10): List validator by Antonis Antoniou

clip_image002Using ADF BC Declarative Built-in Rules (Part 6 of 10): List validator

The "List Validator" is yet another validator that can be defined at either the entity level or the attribute level but pertains to an entity object attribute to ensure that a value is either in a list or not.
So the "List Validator" compares an attribute against a list of
a) literal values ensuring that the value is in or not in the list of literal values that you define,
b) against an SQL query ensuring that the value is in or not in the first column of the query’s result set,
c) against a view attribute ensuring that the value is in or not in the attribute of the specified view object or
d) against a view accessor ensuring that the value is in or not in the specified attribute in all rows of the view object retrieved by the view accessor.
Let’s see a demo of the "List Validator". I have created a new ADF Fusion Web Application and created the basic business components that I will be using in this demo, an entity object based on the Departments HR table, a view object based on the Departments entity object and a default application module. Read the complete article here.

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