[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-1733) A limitation in the expression language enhancements is not documented

A limitation in the expression language enhancements is not documented ---------------------------------------------------------------------- Key: JBSEAM-1733 URL: http://jira.jboss.com/jira/browse/JBSEAM-1733 Project: JBoss Seam Issue Type: Task Components: Documentation, EL, JSF Reporter: Wise Guy Priority: Minor There is a limitation in the expression language enhancements that is not documented. It would look like this: --- http://docs.jboss.com/seam/2.0.0.B1/reference/en/html/elenhancements.html Chapter 29. Expression language enhancements 29.1.2. Limitations 29.1.2.3. Cannot pass a variable to a MethodBinding You may not pass a variable to a MethodBinding, hence the following syntax is not valid: <ui:repeat var="curLocale" value="#{localeSelector.supportedLocales}"> <s:link value="#{curLocale.label}" action="#{localeSelector.selectLanguage(curLocale.value)}"/> </ui:repeat> Seam cannot evaluate "curLocale.value" in the rendering phase because it is a part of a MethodBinding. If you need to do implement the same functionality then use the f:param tag: <s:link value="#{curLocale.label}" action="#{localeProvider.updateLocale()}"> <f:param name="l" value="#{curLocale.value}"/> </s:link> Then, having the field variable "l" injected as a @RequestParameter, you would do this: public void updateLocale() { if (l != null && l.length() > 0) { localeSelector.selectLanguage(l); } } -- May I also point out that you should merge "29.1. Parameterized Method Bindings" and "29.2. Parameterized Value Bindings". (2.0.0.B1/reference) Thank you for the attention -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira