Primefaces 3.3.1 picklist performance is slow

Question

I recently updated my primefaces-project to the new version of primefaces.

Everything seems to work fine but the picklist is very slow when clicking the "add all"-button. I have a huge data-set (about 130 items) in the list. The problem is also described in this forum post.

UPDATE: A very basic example should demonstrate the problem:

<p:pickList value="#{testForm.dualList}"
            var="id"
            itemLabel="#{id}"
            itemValue="#{id}" />

The form (in session scope):

@Component("testForm")
@Scope("session")
public class TestForm implements Serializable {
     private DualListModel<Integer> dualList;
     //getter & setter methods
}

Method which creates the DualListModel:

prepareForm() {
    List<Integer> source = Lists.newLinkedList();
    List<Integer> target = Lists.newLinkedList();
    //add 100 integers as source:
    for(int i = 0; i <= 99; i++) {
       source.add(i);
    }

    DualListModel<Integer> model = new DualListModel<Integer>(source, target);
    testForm.setDualList(model);
}

Is there something i could do to make it faster?

And do you mean that in your old primefaces version it was working fine and get slowed once you updated to the new version? — fareed
3.3.1 doesn't seems to be a release try with 3.3 instead. Or use older. — La Chamelle
@fareed It's seems it use with many items. Lodger post your code. May be you compute everytime your list or something else. — La Chamelle
I added the code to the question. @fareed yes, everything worked fine with the old version of primefaces. — CSan

CSan CSan · Accepted Answer · 2012-08-10T11:00:29

It seems to be a bug in primefaces-version. I have found a few other posts in the primefaces forum about this topic.

I have implemented my own picklist and everything works fine now.

Primefaces 3.3.1 picklist performance is slow

2 Answers