Difference between DataControl.cpx and Datacontrol.dcx in Oracle ADF

Question

In Oracle ADF what is the difference between DataControl.dcx and DataControl.cpx ? What goes where ?

Answer 1

Databindings.cpx- Data Binding Registry
Jdeveloper Creates this first time when you data bind a UI Component
It has
pageMap maps all user interface URLs and the corresponding page definition usage name. This map is used at runtime to map a URL to its page definition.
pageDefinitionUsages maps a page definition usage (BindingContainer instance) name to the corresponding page definition. The id attribute represents the usage ID. The path attribute represents the full path to the pagedefinition.
dataControlUsages declares a list of data control usages (shortnames)corresponding path to the data control definition entries is available in datacontrols.dcx file

Datacontrols.dcx -Data Controls Registry
Lists ADF Data control available in a project
It Contains Information needed to initialize the data control to work with. a particular service (Java bean web service ,EJB) J developer Creates this file when you create a data control . This file is not generated for Oracle ADF Business Components

Answer 2

Check out the doc at A.7 DataBindings.cpx