JSF component ID defined dynamically with EL

I would like to create dynamically the ID of a component (af:inputText by example)
with an EL (#{backing_bean.createID})
I have the following error:
How to define this ID dynamically ?
java.lang.IllegalArgumentException: Illegal id: _#{serviceOfferGroupLinkManagement.serviceOfferGroupManagement.name}_0_0 at oracle.adf.view.faces.component.UIXComponentBase._throwBadId(UIXComponentBase.java:1185) at oracle.adf.view.faces.component.UIXComponentBase._validateId(UIXComponentBase.java:1177) at oracle.adf.view.faces.component.UIXComponentBase.setId(UIXComponentBase.java:254) at javax.faces.webapp.UIComponentTag.createComponent(UIComponentTag.java:1016) at javax.faces.webapp.UIComponentTag.createChild(UIComponentTag.java:1036) at javax.faces.webapp.UIComponentTag.findComponent(UIComponentTag.java:749) at javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:429) at oracle.adf.view.faces.webapp.UIXComponentTag.doStartTag(UIXComponentTag.java:85) at commercialofferjspx._jspService(_commercialoffer_jspx.java:621) [commercialoffer.jspx]

Hello Frederic,
You cannot do that. It's strange though since I cannot find the constraint in the specification about it. The constraint exists on the core libraries but don't seem to be required for the html one.
Anyway, spec or not, I checked the source code and you cannot use EL with the id attribute.
EDIT: Nevermind, I found it in the spec (section 3.1.4). Parent and id attribute disallows value bindings. Thinking about it I can see why I think. Associating the id with a value binding would not garantee the stability of the id during a long period of time. This could lead to inconsistency when the JSF core would try to apply request values.
Sorry,
Simon Lessard
Message was edited by:
Simon Lessard

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