Notification of change of management int ADF Fusion Web Application database

I'm trying to implement a system that detects changes (for example the insert operation) in the database. I searched the net and found these two examples: [blog technology AMIS | http://technology.amis.nl/2012/06/18/notifying-adf-applications-of-database-changes-fast-and-lean-using-database-query-result-change-notification-part-one/] and [post niallcblogs | http://niallcblogs.blogspot.nl/2009/06/auto-refreshing-adf-chart-objects-in.html]

I downloaded an application example in BLOG of FRIENDS and follow the steps which the listeners of notifications to the database.
Both requires a privilege "change notification" in the database so the privilege of change notification, I added to my user db.
When I run the application it properly registers listeners to the db with the method 'registerForDatabaseNotifications' notifications
Adds instances of DatabaseNotificationHandler as listeners. But when I inserted a line in the table,
It does not reach to the method "onDatabaseChangeNotification", as provided in the example.

After this failed attempt, I tried niallcblogs post, followed the steps to create and update a chart according to the emp and dept
iln SCOTT schema tables. But once again the notification does not reach to the method.

I use Jdeveloper 11.1.1.4.0 and access to the HR schema on a remote connection to our Oracle database
You have an idea? I can add the sources of the project if necessary?

Well, if you can't ping your server db machine machine, how you expect your db send notifications of change? :)
In one of my previous posts, I described my test scenario (which is more complex than yours) and this work when the firewall is disabled (or configured correctly :))
So, check (or disable :)) your antivirus and firewall software/hardware.

Dario

Tags: Java

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