I was afraid of something like this.
Moving this logic into managed beans is not so easy because they are not always
accessible, or?
For some simple expressions it can be done but what about expressions in nested
lists?
Sample
<t:dataList id="outer" var="search"
<t:dataList id="inner" var="searchEntry"
<t:inputText
value="#{searchEntry.type=='dateFrom'?search.attributes[searchEntry.name].begin:search.attributes[searchEntry.name].end}"/>
Local iteration var searchEntry does not know search which is in an outer
container and vice versa.
And I cannot pass variables (I don’t use facelets).
Isn’t this a major functionality loss?
Can I use another impl. of the unified EL? If yes which one would you recommend?
Michael
From: [email protected] [mailto:[email protected]] On Behalf Of
Jakob Korherr
Sent: Donnerstag, 17. Dezember 2009 10:54
To: MyFaces Discussion
Cc: Michael Heinen
Subject: Re: JspPropertyNotWritableException - Illegal Syntax for Set Operation
after update to 1.2
Hi Michael,
Due to the change to the Unified EL from MyFaces 1.1 to 1.2 some EL related
things changed. The problem you're describing is one of those, I'm afraid.
Looking at the first item in the stacktrace you can see that the Exception does
not come from MyFaces, but from tomcat's implementation of the Unified EL:
org.apache.jasper.el.JspValueExpression.
You can workaround this by moving the logic to a managed bean property.
Regards,
Jakob Korherr
2009/12/17 Michael Heinen
<[email protected]<mailto:[email protected]>>
Hi,
are conditional Expressions not allowed anymore in value attributes in JSF 1.2?
Stack:
Caused by: org.apache.jasper.el.JspPropertyNotWritableException:
/pages/search.jsp(13,2)
'#{sessionScope.visit.user.restrictedToSearchInBatches?FlatBatchForReviewerCacheBean:NullBean}'
Illegal Syntax for Set Operation
at
org.apache.jasper.el.JspValueExpression.setValue(JspValueExpression.java:88)
at
org.apache.myfaces.custom.savestate.UISaveState.restoreState(UISaveState.java:125)
at
javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:849)
... 48 more
Tag:
<t:saveState id="flatBatchForReviewerCacheBean"
value="#{user.allowedToDoIt?FlatBatchForReviewerCacheBean:NullBean}"/>
It is working if I use either FlatBatchForReviewerCacheBean or NullBean without
the condition.
Input tags are also not working with conditions in the value attribute:
Message:
org.apache.jasper.el.JspPropertyNotWritableException: /pages/search.jsp(154,14)
'#{searchEntry.type=='dateFrom'?search.attributes[searchEntry.name].begin:search.attributes[searchEntry.name].end}'
Illegal Syntax for Set Operation
JSP snippet
<t:dataList id="taxList"
value="#{MyController.fields}"
var="searchEntry" ... >
<t:inputText id="s_date"
value="#{searchEntry.type=='dateFrom'?search.attributes[searchEntry.name].begin:search.attributes[searchEntry.name].end}">
</t:inputText>
Both tags worked well with myfaces 1.1.6 and tomahawk 1.1.7 but not with
myfaces 1.2.8 and tomahawk12_1.1.9
Is it a bug?
Do I have to change anything or is there a workaround?
Michael
