Hello everyone,
I'm trying to display a list of items in a collection using JSTL.
Each item in the collection has x, y, z and id variables.
The user can choose whether he wants the display order (of the items
in the collection) to be
1) x y z
2) z y x
As far as I know the display ordering can be accomplished in two ways:
1) as shown in the code snippet below, create two different loops for
each display format. The drawback with this approach is that a lot of
the common stuff is duplicated between the two loops.
2) Have a c:choose , selection within a single loop, which decides
between the two formats. The drawback is that the the same condition
checking repeats for each loop iteration.
Is there a way to set the formatting outside the loop , and use that
format in the loop to address the two drawbacks above.
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="
http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title></title>
</head>
<body>
<c:choose>
<c:when test="${param.listBy == 'xFirst' }">
<c:forEach var="item" items="${requestScope.items}">
${item.x} ${item.y} ${item.z}
<a href="/show?id=${item.id}">show item</a>
<a href="/edit?id=${item.id}">edit item</a>
<a href="/delete?id=${item.id}">delete item</a>
</c:forEach>
</c:when>
<c:otherwise>
<c:forEach var="item" items="${requestScope.items}">
${item.z} ${item.y} ${item.x}
<a href="/show?id=${item.id}">show item</a>
<a href="/edit?id=${item.id}">edit item</a>
<a href="/delete?id=${item.id}">delete item</a>
</c:forEach>
</c:otherwise>
</c:choose>
</body>
</html>
Any input is appreciated.
-Rashmi
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