[jboss-user] [JBoss Seam] - Parameters in EL method binding

[jbeaken]

Using facelets, jboss 1.2.1GA, jboss4.2.1, ajax4jsf
>From the seam docs:

 Seam provides an enhancement to the EL that allows parameters to be included in a method expression itself. This applies to any Seam method expression, including any JSF method binding, for example: 

<s:commandButton action="#{hotelBooking.bookHotel(hotel)}" value="Book Hotel"/>

To use this feature in Facelets, you will need to declare a special view handler, SeamFaceletViewHandler in faces-config.xml. 

<faces-config>
    
        <view-handler>org.jboss.seam.ui.facelet.SeamFaceletViewHandler</view-handler>
    
</faces-config>

but as I'm using AJAX4JSF this declaration is moved to web.xml


	<context-param>
		<param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
		<param-value>
			org.jboss.seam.ui.facelet.SeamFaceletViewHandler
		</param-value>
	</context-param>


But in my xhtml (using faclets), if I even hint at using parameters such as :
<f:selectItems  value="#{roleSelectItemListService.allRoles()}"/>

it throws

Caused by: javax.el.ELException: Error Parsing: #{roleSelectItemListService.allRoles()}
        at org.apache.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:125)
        at org.apache.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:146)
        at org.apache.el.lang.ExpressionBuilder.createValueExpression(ExpressionBuilder.java:190)
        at org.apache.el.ExpressionFactoryImpl.createValueExpression(ExpressionFactoryImpl.java:68)
        at org.jboss.seam.ui.facelet.SeamExpressionFactory.createValueExpression(SeamExpressionFactory.java:107)
        at com.sun.facelets.tag.TagAttribute.getValueExpression(TagAttribute.java:256)
        ... 75 more
Caused by: org.apache.el.parser.ParseException: Encountered "(" at line 1, column 37.

If I use

<f:selectItems  value="#{roleSelectItemListService.allRoles}"/>

it works fine,

has anybody else come across this

thanks in advance



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