Tuesday Sep 17, 2013

Sample of declarative components in ADF - Confirm Button

Oracle Application Development Framework

Very often we need to provide the same functionality in various places in our ADF application.Quite common example could be a confirmation dialog which needs to be displayed after pressing some buttons (e.g. for deleting rows in a table). Of course most of us know the recipe for that: af:button + af:popup + af:showPopupBehavior + backing bean method. In order to simplify our lives it would be nice to wrap those pieces in something which we could simply drop on the page once and configure only the necessary parts. That's the use case for ADF Declarative Components feature.

I have created a simple example (using the latest and greatest ADF 12c) of how to use declarative components to provide a new composite button with confirmation dialog.

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Tuesday Mar 13, 2012

ADF Bussiness Components: In-Memory Sorting and Filtering

When we work with the ADF Business Components, we work with the View Objects that retrieves its rows from database. This is the default behavior we may need to change sometimes. It is much efficient to work with the data in the memory in such cases. Once we have the view object instance with the rows populated from the database, we can work with the existing rows in memory without re-querying the database.
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Tuesday Jun 07, 2011

Working with the ADF Business Components: Programming ADF Entity Objects

When you develop a Java application, you will need to map java objects to relational data while managing transactions and locking mechanism. This is where ADF BC steps in. Database interaction and operation of an entity object can be achieved without using custom Java code. However ADF uses MVC (Model/View/Controller) architecture, which means there is a back-end code implemented separately. That can be complex business logic or utility classes. This can raise a need of accessing ADF BC programmatically with Java code. In that case we will need to generate Java classes for the entities that require custom behavior.[Read More]
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