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.

Customization Classes for MDS in Oracle ADF

In last blog posts Seeded Customizations using MDS in Oracle ADF & Personalization using MDS in Oracle ADF Personalization and Customizations were described using power of MDS framework. The most important part in configuring/implementing Customizations which we can say is heart are Customization Classes. So it becomes very important to know and have a clear concept about what Customization classes are , what they do and how to implement them for use cases.

Customization Classes

First we need to understand what are Customization Classes. Customization classes provide a layer of customization. This is a very common technical definition for MDS Customization classes. In very simple terms, they return a single/multiple values for which different customizations are applied to the base document.
This means suppose while configuring/designing customizations, developer configured ABC changes (Customizations) for X value, then at the runtime when the Customization class method(will the method later in article) will return X value, ABC Changes will be applied on the document. Thus Customization classes return values and changes stored in MDS are applied to the base document based on these Classes.