4.2 DOC BUG: all about the application process
"There is an error in Oracle Application Express Application Builder User Guide version 4.2 §8.8.1 " "on the implementation of the application process":
A process On Demand is a special type of procedure of demand that has a Point of On Demand process and executes when it is called from a process On demand page level or a browser AJAX call. On-demand processes are useful when you have logic of PL/SQL that you want to run different execution points on several pages.
At the request of the process generally must be created on a page and not at the level of the application. On request, process created at the application level are created with an initial authorization scheme of must not be Public user. This prohibits the process invoked with users in authenticated sessions.
As it is perfectly possible (and desirable) at the request of the application process to be invoked, [that] by authenticated users, this should probably read:
A process On Demand is a special type of procedure of demand that has a Point of On Demand process and executes when it is called from a process On demand page level or a browser AJAX call. On-demand processes are useful when you have logic of PL/SQL that you want to run different execution points on several pages.
At the request of the process generally must be created on a page and not at the level of the application. On request, process created at the application level are created with an initial authorization scheme of must not be Public user. This forbidden process be invoked from users not authenticated sessions.
In addition, the second paragraph is a new addition to the documentation for APEX 4.2. What is the reasoning for not creating processes on request at the application level? I've used them for a few years as a way to provide reusable, application- wide (for example, the file downloads and the AJAX content) only items authenticated Apex sessions.
Hello
Thanks again. I added a note to the 5.0 docs.
It is certainly very good create processes at the level of applications On Demand. However, if a process is tied to a single page, only, it is immediately obvious that the process belongs to the interface of this page. It's good from a maintenance point of view, because if you only use application-level processes, it may be more difficult to determine if the process is still in use and where it is called from.
Kind regards
Christian
Tags: Database
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