Monday Dec 29, 2014

ADF Region Data Synchronisation with Change Event Policy by Andrejus Baranovskis

clip_image002This post applies for multiple ADF regions, based on the same Data Control. I will show you can avoid using ADF Contextual Events to synchronise two ADF regions, when both are based on the same Data Control and this Data Control is shared between the two.
Sample application contains two ADF Task Flows, both are using the same VO instance from shared Data Control:

Two ADF regions are implemented based on these TF's, one implements table component and another a form: Read the complete article here.

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Thursday Oct 23, 2014

Discover popular uses for in-memory data grids – Webcast October 29th 2014

LogoTop Three Reasons to Use an In-Memory Data Grid
Date: Wednesday, October 29, 2014
Time: 10:00 AM PDT
As data volumes and customer expectations increase—driven by social, mobile, and cloud devices—so does the need to manage more data, often in real time. Companies facing this challenge benefit from the in-memory data grid technology of Oracle Coherence due to its ability to offload overburdened databases and shared data services and provide real-time data updates to applications. This saves infrastructure cost and ensures optimal performance.
Join the webcast to learn how companies like yours are:

  • Offloading their mainframes and shared services
  • Delivering real-time data to customers to provide the best experiences
  • Caching commonly used data to keep it highly available for application consumption

For details please visit our registration page here.

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Friday Jul 04, 2014

Working with the Array Data Type in a Table by Eugene Fedorenko

In this post I would like to follow up on my previous article about Oracle collection data types and I am going to focus on working with oracle.jbo.domain.Array attributes in af:table component.
So, in my database I have the following SQL type:
create or replace type varchar2_array_type as table of varchar2(200)
And I've got the following table:
create table testarray (
SomeField Number,
ArrValue VARCHAR2_ARRAY_TYPE)

nested table ArrValue store as arrvalue_tab return as value;
There is an entity in ADF BC model which is based on the testarray table:

The data type of the attribute Arrvalue is oracle.jbo.domain.Array.
There is a corresponding attribute binding in the binding container: Read the complete article here.

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Saturday May 17, 2014

Implementing Data Caching and Data Syncing by A-Team

Oracle's A-Team has developed a free JDeveloper extension called the "ADF Mobile Persistence Sample". This extension contains powerful design-time wizards and a comprehensive runtime library, allowing you to very quickly create a mobile application with data caching and data syncing capabilities. Check out this impressive video that shows the development process with this extension from start to finish.

More information can be found in two articles on the A-Team Chronicles website:

Oracle A-Team and Mobile Platform Product Management are currently investigating how the functionality of this extension can best be integrated in future releases of the product.

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Saturday Aug 17, 2013

Active Data Guard & Fusion Middleware Repositories by Jacco H. Landlust

Last year while working on a POC Rob den Braber noticed the following in Disaster Recovery for Oracle Elastic Cloud with Oracle ExaData Database Machine on page 13.

Currently, Oracle Fusion Middleware does not support configuring Oracle Active Data Guard for the database repositories that are a part of the Fusion Middleware topology. However, Active Data Guard can be configured if your custom applications are designed to leverage the technology.

Today this came up in a discussion with Simon Haslam , and he didn’t hear from this support issue before. So it seems that it is not that well know that Active Data Guard and Oracle Fusion Middleware is not a supported combination.

This makes this blog post a reminder from what is already in documentation (unless someone can comment and tell me that currently in the quote is not so currently anymore).
Hope this helps.

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