Equivalent of JSTL / JSF variables in ADF Faces

Question

Is there any equivalent of JSTL core variables <c:set property="" value="" /> in ADF faces? ...The problem with those JSTL variables are they are immediate expressions ($) and they cannot be used with EL expressions in ADF component properties, as they deal with {# defered}..We have <f:attribute> which we add that to any component, but can retrived only using from backend code when any events are generated. like event.getComponent().getAttributes()....
I am looking for some declarative attribute which holds some value within jsff page fragment....(not the one like managed bean attribute)

Answer 1

Yes, We can use keep the variable in viewScope....But how do you define any variable in jsff declaratively in that viewScope (not using any backing bean method) .....if you see <c:set > you can define that in page and use it across.....I cant use property listener or action listener ..as i can set these values only on invoking certain action on a component....i want to set them based on certain condition like using c:if and not on some action...I dont see any way other than using some backing bean and binding with some property and setting some value...