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In JSF what is the shortest way to output List<SomeObj> as comma separated list of "name" properties of SomeObj

Answer 1

+4 A:

use <ui:repeat> (from facelets). It's similar to c:forEach

Or pre-compute the comma-separated string in the managed bean, and obtain it via a getter.

Bozho 2010-07-12 18:19:45

I think he's not using Facelets since he explicitly tagged JSP.

BalusC 2010-07-12 20:44:49

sometimes they tag so just because a `.jsp` extension is used (with facelets inside) :)

Bozho 2010-07-12 23:54:33

actualy I am using facelets, but any good solution will do

Vitaly Polonetsky 2010-07-13 19:42:11

@BalusC - see :) my sixth sense worked :)

Bozho 2010-07-13 20:08:37

@Vitaly Polonetsky use `ui:repeat` and use the inner part from BalusC's answer

Bozho 2010-07-13 20:09:29

Answer 2

+2 A:

Use JSTL c:forEach (just drop jstl-1.2.jar in /WEB-INF/lib to install it, if not done yet). You can use LoopTagStatus#isLast() to determine if the currently iterated item is the last item and if so, then omit the comma.

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
...
<c:forEach items="#{listHolder.lst}" var="someObj" varStatus="loop">
    ${someObj.name}${!loop.last ? ', ' : ''}
</c:forEach>

Update: since you're actually using Facelets, here's a Facelets targeted answer:

<html xmlns:ui="http://java.sun.com/jsf/facelets"&gt;
...
<ui:repeat value="#{listHolder.lst}" var="someObj" varStatus="loop">
    #{someObj.name}#{!loop.last ? ', ' : ''}
</ui:repeat>

But you should really accept Bozho's answer since he was first and his sixth sense has it right ;)

BalusC 2010-07-12 20:45:48

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In JSF what is the shortest way to output List<SomeObj> as comma separated list of "name" properties of SomeObj

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