Monday Mar 05, 2012
Friday Oct 14, 2011
By Grant Ronald on Oct 14, 2011
I've just published two new ADF Insider Essentials on You Tube. The first demonstrates how to set an attribute's default value to the value found in another entity object. This is a common use case where, for example, an employees default salary is the min salary for the job role, which is defined in the jobs table.
The second explains how to implement a total. Again a common use case where, for example, you want to display the total salary for a department (which of course is based on the total of all the relevant employee's salary).
These should be essential skills for anyone developing in the Oracle ADF world.
Monday Sep 05, 2011
By Grant Ronald on Sep 05, 2011
I've just published a new ADF Insider Essentials video showing how to implement programmatic PPR. Why would you need to know this? ADF Faces has a number of features for declaratively defining when data is submitted on a page and which data should be refreshed automatically. However, there are some times when the framework maybe doesn't refresh a component when you expect it to and so you decide to force the PPR of a component in code.
Its actually pretty easy and this 7 minute video explains how you can do this.
Monday Aug 15, 2011
By Grant Ronald on Aug 15, 2011
A really neat feature of ADF Business Components is that you can define different LOVs for the same attribute. So why might you want to do that? Well consider the use case that for an order you have PaymentType=Cash or Credit. You also have an attribute PaymentDetail, depending on the PaymentType you want to display either a list of credit card companies OR a list of currencies.
I've just uploaded a new ADF Insider Essentials to our YouTube channel that shows you to implement this behaviour. This will also be uploaded onto OTN. If you are not already, it might be worth subscribing to the channel.
Friday Jul 08, 2011
By Grant Ronald on Jul 08, 2011
A common development use case in Oracle ADF is being able to dynamically filter data based on runtime data such as who is logged in, which screen are they on, maybe even the time of the day. This is usually achieved by applying view criteria on the view object. The dynamic element comes from the fact you can apply, remove and append view criteria from code.
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