I just started to try to use ajax4jsf with my "JBoss Seam" based application. But I get the following exception:
javax.faces.el.EvaluationException: Cannot set value for expression '#{club.code}' to a new value of type java.lang.Stri
ng
at org.apache.myfaces.el.ValueBindingImpl.setValue(ValueBindingImpl.java:310)
at org.jboss.seam.core.Expressions$1.setValue(Expressions.java:61)
at org.jboss.seam.core.Pages.applyViewRootValues(Pages.java:561)
at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeUpdateModelValues(AbstractSeamPhaseListener.java:151)
at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:55)
at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:70)
at org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:207)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:71)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)It appears that this problem is triggered by having a page param with the same name as a Seam component. For example, if I have in my pages.xml file the following:
<page view-id="*">
<param name="club" value="#{club.code}" />
</page>But I also have a Seam component, named club, such as:
@Name("club")
@Scope(SESSION)
public class Club implements Serializable {
private String code = "0";
public String getCode() {
return code ;
}
public void setCode( String code ) {
this.code = code ;
}
}
then the exception happens. However, if I change the pages.xml file to say:
<param name="clb" value="#{club.code}" />then it works fine.
