Binding the Data - Oracle ADF 11gR2 Development Beginner's Guide - page 137

accessorIterator
acessorIterator is used to iterate the Accessor hierarchy from the data control
layer. The CacheResults property will manage the collecion between requests.
ChangeEventPolicy will control the behavior of the refresh acion. The opions
available are as follows:
none : The iterator is refreshed based on the refresh condiion provided.
push : Asynchronous data changes will automaically be refreshed.
ppr : ppr is a parial page rendering, which will refresh only some part of
the page. The seing will help the iterator to be refreshed if the current
row of the iterator is changed and the ppr acion occurs.
invokeAction
We create this executable to invoke an acion on a speciic condiion. For example, if we
want to invoke the Commit acion on a condiion and on a page load, we will map the
invokeAction item to the Commit operaion binding and then move the invokeAction
item to the top as the irst executable in the list of executables in the page deiniion. The
invokeAction item provides a Refresh property, which will allow the accessor method
based on the opion provided. The opions available are as follows:
always : This opion refreshes the executable always.
deferred : If the refresh is based on another executable, this opion refreshes
the executable accordingly.
ifNeeded : The refresh is taken care of whenever needed by the framework.
This is the default for executables.
never : Never refreshes the executable.
prepareModel : Refreshes every ime the binding is prepared.
prepareModelIfNeeded : Only refreshes if needed and/or if the page binding
container is prepared.
refreshAfter : Sets the dependent executable to execute the current executable
ater the one menioned.
renderModel: Refreshes the executable when the page is rendered.
renderModeIfNeeded : Refreshes the executable only if it is needed by the
framework when the page is rendered.
The RefreshCondition item will hold the condiion on which the refresh is to happen.
RefreshAfter will hold the condiion ater which the executable is refreshed.