The representation of if-elseif-else in EL using JSF
The following JSF code contains two separate <c:if></c:if>. Let's look at it.
<?xml version='1.0' encoding='UTF-8' ?>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:c="http://java.sun.com/jsp/jstl/core">
<h:head>
<title>JSF EL</title>
</h:head>
<h:body>
<h:form>
<c:set scope="request" var="row" property="x" value="10"/>
<c:if test="#{row==10}">
<h:outputLabel value="value = 10"/>
</c:if>
<c:if test="#{row==15}">
<h:outputLabel value="value = 15"/>
</c:if>
</h:form>
</h:body>
</html>
It simply displays value=10 on the JSF page at run time. I need to represent the above same <c:if></c:if> with the following if-elseif-else (Java context).
if(row.equals(10))
{
//Do something...(JSF stuff)
}
else if(row.equals(15))
{
//Do something...(JSF stuff)
}
else
{
//Do something...(JSF stuff)
}
How can it be represented with Expression Language (EL) using JSF?
Answer
You can use EL if you want to work as IF:
<h:outputLabel value="#{row==10? '10' : '15'}"/>
Changing styles or classes:
style="#{test eq testMB.test? 'font-weight:bold' : 'font-weight:normal'}"
class="#{test eq testMB.test? 'divRred' : 'divGreen'}"