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Common mistake when iterating rows

In a blog entry from 2010, Oracle's Jobinesh Purushothaman writes about exceptions that are getting raised after developers iterate the collection of a RichTable instance using calls to setRowKey(key). http://jobinesh.blogspot.co.uk/2010/02/common-mistake-while-iterating-through.html The reason for the exception is that the selected row state is change on the table without synchronization to happen with the ADF bindinglayer. The failure of synchronizing the table selected row...

Tuesday, May 29, 2012 | ADFm | Read More

Guess What - We Want You!

Grant Ronald and the team are looking for help. Grant put the following job posting out on the Internet today The ADF Product Management team are looking for a strong ADF technologist to join people like Frank Nimphius, Chris Muir and Lynn Munsinger as part of the ADF Product Management team tasked with ensuring customers are able to successfully adopt and implement ADF applications. Full details of the job post can be found from the link below, or search on IRC1793732 at https:...

Friday, May 11, 2012 | Info | Read More

Managing component value state correctly

A frequent problem reported on OTN is about failure in saving component values using managed beans especially when multi-select components are used. Usually the problem arises when developers store select choice components values in managed beans they use for JSF component bindings as well (which then makes the managed bean becoming a backing bean). Backing beans however are saved in request scope (at least they should to not err again).Request scope beans however reset their...

Tuesday, May 8, 2012 | ADFv | Read More

Scope object serialization failed (object not serializable)

A common reason for the "SEVERE: ADFc: Scope object serialization failed (object not serializable)" error message is that application developers reference JSF components in managed beans with a scope larger than request. When using the JSF component Binding property to point to a managed bean, think backing bean and thus don't reference beans that are in scopes larger than request scope (don't: viewScope, pageFlowSope, sessionScope, applicationScope). If, from a managed bean...

Friday, May 4, 2012 | ADFv | Read More

How-to invoke a method once upon application start

A requirement on the OTN forum was to execute a method only once upon application start either for the application as a whole (all user instances) or once per application user session. In addition, the method to be executed was exposed as an Operation binding on the ADF binding layer. One way to provide a solution to this requirement is to within the combination of a phase listener on the JSPX of JSF document level and amanaged bean in application or session scope (dependent...

Monday, April 23, 2012 | ADFv | Read More

Which option to choose for accessing Web Services in ADF

Oracle ADF provides three options for integrating Web Service:· Web Service Data Control · JAX-WS proxy client and POJO Data Control · JAX-WS proxy client and programmatic View Objects Note: In the above, I exclude REST services in my recommendation because this is what ADF will address much better using the URL data control in JDeveloper 11g R2 (available) and with improved functionality in the upcoming Oracle JDeveloper 12c release. For deciding which option to use for...

Friday, April 20, 2012 | Web Service | Read More
 

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