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way to print in alp order??

Posted on 2011-09-08
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Last Modified: 2012-05-12
Hi,

How can I sort items, items='${company.sites}' in alphabetical order and print them?
Do I need to sort it in Java class first?


<c:forEach items='${company.sites}' var="site">
  <tr><td><ul><li class="${site.name}">
               <a href="${site.url}" target="_blank" class="${site.tag}">${site.name}</a>
            </li>
         </ul></td>                          
    <td style="width:25%">${site.lastUpdate } </td></tr>
</c:forEach>

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Question by:dkim18
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10 Comments
 
LVL 40

Expert Comment

by:gurvinder372
ID: 36503985
like this?
http://stackoverflow.com/questions/712046/jstl-foreach-reverse-order

i guess you need to sort the collection in servlet, before you get to jsp
0
 
LVL 27

Assisted Solution

by:rrz
rrz earned 100 total points
ID: 36504358
You could order the sites when you put them into your collection,
or you could create a tag file to do the sorting,
or you could create a custom EL function to do the sorting. Please ask us here, if you want example code.
0
 

Author Comment

by:dkim18
ID: 36504768
If you can show me an example code, it will be very helpful.
If you could show me one that is not too hard!
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Author Comment

by:dkim18
ID: 36504800
I have a basic java question, ${company.sites}
I can see the Site class but I can't find the Sites class.
I can't find where Sites collection is.
How does this servlet  syntax work?
I have this Java project and trying to understand what it is doing and fix bugs if I can..
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LVL 40

Expert Comment

by:gurvinder372
ID: 36504944
you can simply include this scriptlet in your code

<%
List list = (List)session.getAttribute("company.sites");
Comparator comp = .... //comparator class defined to sort the sites
Collections.sort(list, comp);
%>
0
 

Author Comment

by:dkim18
ID: 36505357
OK.
I came to understand that Com
Company class {
Company company;
...


public List<String> getOwnerNames() {
        List<String> owners = LuceneConfig.getOwnernames();
        return Collections.sort( owners );
       
    }

public List<Site> getSites() {
       List<Site> xsites = LuceneConfig.getSites();
       return  Collections.sort(xsites);  <=== I need help this part...
      }

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Author Comment

by:dkim18
ID: 36505369
There is no Collections.sort() so are you saying I need to use Comparable <Site> =...?
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LVL 40

Accepted Solution

by:
gurvinder372 earned 400 total points
ID: 36505619
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LVL 27

Expert Comment

by:rrz
ID: 36506869
>I can see the Site class  
If you want more help, then please show us that code.
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LVL 27

Expert Comment

by:rrz
ID: 36506885
Also, tell us how you want to sort the List of sites.  On the name = site.getName() ?
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