BTW: I'm using Seam 2.0.2sp1 to make JSF integration with backing bean easier.
Here's my backing bean:
@Name("test")
@Scope(ScopeType.CONVERSATION)
public class Test implements Serializable {
/**
*
*/
private static final long serialVersionUID = 7261056085418809473L;
@DataModel
private List
> items;
@Factory(value="items")
public void findItems() {
items = new ArrayList
>();
Listfirst=new ArrayList ();
first.add("fvalue1");
first.add("fValue2");
first.add("fvalue3");
items.add(first);
Listsecond=new ArrayList ();
second.add("svalue1");
second.add("sValue2");
second.add("svalue3");
items.add(second);
}
}
And Here's my JSP page:
<?xml version="1.0"?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns="http://www.w3.org/1999/xhtml"
version="2.1">
<jsp:output doctype-root-element="html"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3c.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>
<jsp:directive.page contenttype="text/html">
<html>
<head>
<title>Test</title>
</head>
<body>
<h1>Test</h1>
<f:view>
<table>
<c:foreach items="#{items.wrappedData}" var="_item">
<c:foreach items="#{_item}" var="val">
<tr><td>
<h:outputtext value="#{val}"></h:outputText>
</td></tr>
</c:forEach>
</c:forEach>
</table>
</f:view>
</body>
</html>
</jsp:root>
This works and produces the following results:
fvalue1
fValue2
fvalue3
svalue1
sValue2
svalue3
Which is exactly what I want, but when I do the following it fails.
<?xml version="1.0"?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns="http://www.w3.org/1999/xhtml"
version="2.1">
<jsp:output doctype-root-element="html"
doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN"
doctype-system="http://www.w3c.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>
<jsp:directive.page contenttype="text/html">
<html>
<head>
<title>Test</title>
</head>
<body>
<h1>Test</h1>
<f:view>
<table>
<c:foreach items="#{items.wrappedData}" var="_item">
<c:foreach items="#{_item}" var="val">
<tr><td>
<h:outputtext value="#{val}"></h:outputText>
</td></tr>
</c:forEach>
</c:forEach>
</table>
</f:view>
</body>
</html>
</jsp:root>
This fails with the following exception:root cause
javax.servlet.ServletException: javax.servlet.jsp.JspTagException:
Don't know how to iterate over supplied "items" in <forEach>
org.apache.jasper.runtime.PageContextImpl.doHandlePageException
(PageContextImpl.java:850)
So, it seams you can not access the referenced #{_item} in the
forEach.
