Data Presenter article in Top 10 OTN WebCenter Articles for 2014

Happy to know that my article about Data Presenter on OTN is in top 10 Webcenter articles on OTN. Below is the link for the listing of top 10 webcenter articles on OTN.

https://blogs.oracle.com/archbeat/entry/top_10_otn_webcenter_articles

Congrats to all the persons whose article is there on the list.

Its Good to close 2014 on a Happy Note :)

Have loads of fun on New Year Eve and may you have an awesome 2015.

See you guys in 2015 with next post.

Thanks

Custom Exception Handling in ADF - Model Layer Generic Framework Design

I have observed that there are lot of users who asks questions on OTN and have problem in designing the custom generic exception handling framework. So in this and next some of the posts I will be describing how we can lay down a generic way to report custom exceptions to the page. These custom exceptions may be mostly for Business Specific errors for which we need to display a custom user friendly message on the page to the user.

In this post we will be seeing how we can customize the error on Model layer and take error messages from a resource bundle defined in the application.

Lets get started. We will first create a generic framework project where we will add exception handling related classes. We give it a name as FrameworkUtil. Framework util project will be dependent on model project from where custom Exceptions will be thrown in the enterprise applications.

First lets set up FrameworkUtil project - ADF Model Project 

NIAIOUG - 9th Tech Meet at Jaipur India

I will be a part of 9th NIAIOUG Tech meet at Jaipur Rajasthan India. This is for the first time NIAIOUG is organizing Oracle User Group Tech Meet in Rajasthan. I am very please to be part of this meet and look forward to a great audience at JECRC University Jaipur. Hope to see some awesome IT Professionals and Students in my session.

Aman, Nikhil and Navneet will be speaking on Database topics. This all will be very useful for DBA's as well as aspiring DBA's.

I will be speaking on ADF and Jdeveloper 12c. There will be a small demo at the end and then there will be open question answers session where anyone can ask questions as how to learn , move into Oracle ADF.

Hope to have a good time @ JECRC Jaipur.

Thanks !!

Data Presenter Framework - Webcenter Portal PS7

Data Presenter

One of the most useful features of Webcenter Portal is Data Presenter. Data Presenter allows developers/administrators to create data controls at runtime, and they are readily and immediately available for application usage, without any restart of servers. One more advantage of Data Presenter is ability to create task flows at runtime. Both data controls and task flows can be created at runtime in the Webcenter Portal PS7, with no coding needed in JDeveloper. These newly created data controls can be used in the task flows to create UI and these task flows can be reused wherever needed across the application.

This is useful for Developers, Technical Leads and Technical Architects as earlier, they need to take a decision to create custom task flows separately in JDeveloper and deploy them on Weblogic and use them inside the Webcenter Portal. This is highly useful for developers and Webcenter administrators due to easy learning, and saves significant effort. All this requires quite an effort and is little cumbersome to set it up at the beginning. Data Presenter marks this problem and provides solution to this in quite good way.This article provides an overview of WebCenter Data Presenter and hands-on instructions, steps to implement above functionality.

Persisting to MDS Store using Programmatic API's in ADF

In last some of the posts regarding MDS, we saw how to achieve Personalizations and Seeded Customizations in Enterprise applications using Oracle ADF. There was explanation how to leverage Oracle ADF MDS framework for this purpose. Most of the personalization and customization is provided OOTB by the framework and just requires correct configurations and steps to achieve. These are declarative user customizations which allow to implicit save component changes done by the user.

But there are scenarios where some custom persistence is required to be saved to MDS Store. This means, that state of the components needs to be changes based on certain conditions. This explicit saving of state of components can be done using Java API provided by the framework.

Lets take an example for this post:
This example uses a ShowDetailFrame which is webcenter component. There is a button show/hide SDF which hides and shows the below SDF. Now this hide and show of SDF is being persisted in MDS Store. For now we will take File system based MDS Store. So for a particular user, when user performs show or hide of SDF, its state is stored in MDS and is presented to the user when it Logins next time into the application.

Sangam 14 - My Experience

It was a proud moment for myself to attend and present in Largest Independent Oracle Event in India. The conference was very well organised by AIOUG and was a way to network and learn about latest trends in Oracle Stack. Though the conference had large number of  DBA's (Yes they are super people) sessions but there were also good amount of sessions for Oracle Fusion Middleware.

Session on Big Data by Satyender was an eye opener of where we are heading towards in way to store data apart from conventional RDMS. Its the way ahead and also for Application Developers. For application developers, we should know how to use NoSQL and Big Data databases for our applications.

Session at Sangam 2014 - AIOUG

I am proud to announce that I will be Presenting a Session at Sangam 2014 this year in Bangalore India.

Sangam is a yearly Oracle User Group Conference Hosted by All India Oracle User Group (AIOUG) and is the largest Independent Oracle event in India.


Below are the details of my Session :

Session           : 201421

Session Title   : Customizations of Enterprise Applications using Meta Data Services in Oracle ADF

Duration          : 50 Minutes

Track               : Development Track

The Session will be about Customizations and Personalizations of Applications using powerful XML based MDS framework provided by Oracle ADF. It will consist of introduction to Meta Data Services (MDS) and how MDS framework is enabled in ADF applications using Jdeveloper. There will be an explanation of how MDS works behind the scenes and how requests for Customizations are being persisted in MDS Store. Finally there will be a Demo of Personalization using Jdeveloper 12c.

I am excited to talk about this topic @ Sangam14.

See you there !!