Skip to main content

A review of APEX World 2017 - Day 2

(You can read my impression of the first day here)
After a short but good night sleep and an excellent breakfast, Mike Hichwa delivered his second keynote "RAD Challenge: Build a Real World application in 60 minutes”. Although he suffered from connection issues, Mike managed to wow the audience showing the new packaged app "Quick SQL” and  the new (currently Cloud-only) “Blueprint” option to create a new application. As JSON is not code (but just a collection of value-attribute pairs), it was really a no-code showcase!

Then it was parallel session time again and I went to see how Christian Rokitta would "Bootstrapify Universal Theme”. The message is: You don’t have to unsubscribe from the Universal Theme (and please don’t!) to create an application that looks totally different from the “regular” APEX applications.

Then I had to deliver my second presentation “Docker for Dummies”. It was aimed at people who might have heard of Docker but really have hardly a clue what it is - and what the benefits are. I received really good feedback on this session and quite a lot of additional questions afterwards. So it seems I did made people curious and enthousiast about Docker. Mission completed! 

During another excellent lunch, we could still enjoy the beautiful weather and the Rotterdam skyline. It was good to spend some time outside in the fresh air.

Then the last part of the event started. Dimitri kicked it off with “Moving my APEX app to the Exadata Express Cloud. Live!”. He explained the differences in (some of) the cloud offerings Oracle has and how you can move your application and data from your local instance into the Exadata Express Cloud. As Mike explained during his keynote on the first day, EECS will get better: more workspaces, really “Cloud first”, optional upgrading (after APEX 5.1), a local datacenter etc. Oh, yes, and a free subscription to the Oracle Developer Cloud Service as well!

The last regular session I attended was “Forms to APEX” by Sergei Martens. The APEX pages he showed were impressive. So different than anything else and enriched with numerous cool features. I especially liked the “Outlook style” interface because it is so close to what a user is used to, he/she can start using that application right away without any training whatsoever. The presentation could even be better if he had shown the original Forms screens as a reference ...

And finally, at the last keynote, Shakeeb could do his “The Center of the Universal Theme” presentation. Of course the presentation wasn’t just good looking - it had good content as well and I really like Shakeeb’s presentation style (as do a lot of other people I heard afterwards). 

As a “goodbye” we were offered some drinks and snacks and then it was time to go home. 

Next year APEX World 2018 it will probably be on the same wonderful location. I am already looking forward to it and i encourage everyone who is interested in APEX to attend! 
Post a Comment

Popular posts from this blog

A review of APEX World 2017 - Day 1

Last week the SS Rotterdam was the beautiful location of the largest gathering of APEX Developers worldwide. With around 380 (!) attendees a new high was set. And they came from all over the world : I spotted people from The Netherlands, Belgium, Switzerland, Austria, Croatia, Germany, Denmark, Norway, UK, Ireland and the USA. And I even might have missed one or two ….

The event started with a presentation by the “father of APEX”, Mike Hichwa, talking about "Oracle APEX Past, Present and Future”. Of course everyone is curious what the APEX future might bring: Friendly URL’s, automated testing, more JSON, concurrent APEX versions, third party Oauth 2 authentication (think Facebook, Google), APEX app diff and more, a lot more, REST capabilities. And now we have to wait for APEX 5.2 … and that might take a while! 
After this keynote, the conference split up in three tracks. After the coffee break I returned to to big theatre where Geertjan Wielenga talked about "Finally Javas…

Push changed rows to an Interactive Grid

For pushing changes from the database to the end user, the regular solution is using websockets. A change in a record is detected - using a trigger or using the CQN (Change Query Notification) feature - and a notification is send to a websocket server. That websocket server broadcasts the notification over a channel to all browsers that are tuned in to that websocket channel. Then the browser reacts to that notification, usually showing an alert or refreshing a report. This trick is described on multiple sites, just Google for "oracle apex websockets" or similar.

So back in the old days, we used that notification in the browser to refresh the (interactive) report. But along comes the Interactive Grid (IG). While he full-refresh mechanism still works for IG, an IG has also the option to refresh just one row.  So wouldn't it be awesome that just the changed row(s) get refreshed upon a change in the database, instead of the whole report? Can we do it ... yes we can!
First i…

Showing a success message after closing a modal dialog

APEX 5 comes with Modal Dialogs out of the box. Very neat. Especially for adding and changing data. And to minimise the number of time a user has to click, it could be useful to add a "Close Dialog" process after the actual data processing. When the data processing fails, the Dialog stays on top showing the error. When data processing runs fine, the Dialog is closed ... without any confirmation. And this might be scary for a shaky user.

So how can we provide the user some feedback? On Page 4 of the Sample Dialog Application you can see one solution: up on a Dialog Closed Event on the parent page it does a redirect to refresh the parent page appending the success message of the "Close Dialog" process. This has two drawbacks. First, it probably refreshes more than necessary. And second, if you're using multiple layers of dialogs (dialogs that open other dialogs) the message appears in the "parent dialog".
As an alternative you could follow these steps: 1…