What happens when we drop a data collection on a page?
When we drag a view object instance (data collection) from the Data Controls panel and drop it on a page, JDeveloper IDE creates (or updates, if existing) binding metadata XML files for holding binding definitions. IDE performs the following tasks:
IDE adds ADF Faces Components to the JSF page. Common attributes of the UI components are defaulted by using the attribute definitions present in the model, referred through Expression Language (EL).
Note
Expression Language is used to access underlying the model component in the ADF Faces pages. To learn general concepts on Expression Language, go to http://java.sun.com/products/jsp/reference/techart/unifiedEL.html.
It creates
DataBindings.cpx
if it is not found in the default view package under the ADFm source directory. The default location of the ADF model source is theadfmsrc
folder located under the view project.It creates
adfm.xml
if it is not found in theMETA-INF
folder under theadfmsrc...