Hello Stefan, i do not have the right and complete answer, but one or two hints: - have a look at the facelets FAQ (http://wiki.java.net/bin/view/Projects/FaceletsFAQ), there's an entry about build-time and render-time tags, and the difference on c:forEach and ui:repeat - on this list there was a thread about the evaluation of child components depending on the parent's rendered attribute: http://www.mail-archive.com/users_at_myfaces.apache.org/msg24702.html (replace the _at_)
Perhaps this might take you some steps further,
cheers,
Martin :)
On Wed, 2006-07-19 at 20:12 +0200, Stefan Neumann wrote:
> Hi all,
>
> I have a profile structure editor, where I can choose different Values
> and add them to a list. Each property of such a profile can have
> different datatypes like String, Address(contains street, city, zip
> code), CreditCard (owner, number ...) and so on.
>
> After this profile structure is saved I want to display the profile in
> the normal known way with
>
> <label>: <InputFields>
>
> Inputfields would be in case of a String simply an inputText, in case of
> an address several new label with their inputFields.
>
> street: <inputText>
> zip code: <inputText>
> city: <inutText>
>
> So tried something like that
>
>
> <ui:repeat value="#{controller.profileStructure}" var="prop">
> <c:choose>
> <c:when test="prop.isString">
> DISPLAY STRING STUFF
> </c:when>
> <c:when test="prop.isAddress">
> DISPLAY ADDRESS STUFF
> </c:when>
> <c:otherwise>
> UNKNOWN TYPE!
> </c:otherwise>
> </ui:repeat>
>
> After a long time of trying I just realised, that this will never work,
> because the test of the jstl stuff is calculated ONCE before rendered.
> But in this case, prop is null and so it cannot be used. (I chosed this
> was first, because you have an otherwise and can see, if a type
> implementation is missing.
>
> But next try, using the jsf rendered attribute:
>
> <tr jsfc="ui:repeat" value="#{controller.profileStructure}" var="prop">
>
> <h:panelGroup rendered="#{prop.isString}">
> <!-- display label -->
> <td>
> <span jsfc="h:outputLabel" value="#{prop.name}" />
> </td>
> <td>
> <span jsfc="h:inputText" value="#{prop.value}" />
> </td>
> </h:panelGroup>
>
> <h:panelGroup rendered="#{prop.isAddress}">
> <!-- display label -->
> <td>
> <span jsfc="h:outputLabel" value="#{prop.name}" />
> </td>
> <td>
> <!-- Display Address as a block -->
> <table>
> <tr>
> <td>
> Street:
> </td>
> <td>
> <span jsfc="h:inputText"
> value="#{prop.value.street}" /> </td>
> </tr>
> [.. Display other fields of address ..]
> </table>
> </td>
> </h:panelGroup>
> </tr>
>
> BUT,.... (argh!!)
>
> I had already read in this list, but have not remembered, also the parts
> are not rendered the are also interpreted, so also I want to display a
> String value, the template tries to <string-value>.street and that
> throws an exception.
>
>
> Back to my question: How can I do just a functionality? I cannot have a
> conditional statement and I am not able to not render stuff. What else
> can I do?
>
>
> Thanks in advance for your help,
>
> Stefan
--
Martin Grotzke
Bernstorffstr. 17, 22767 Hamburg
Tel. +49 (0) 40.98239888
Mobil +49 (0) 170.9365656
E-Mail [EMAIL PROTECTED]
Online http://www.javakaffee.de
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