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JSF 2.0 and AJAX Problem

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Posts: 36

posted 14 years ago

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Hi all,

facing a strange problem for some days when build up a very simple General-Detail-View. I reproduce the issue with a (even more simple) demo application.

[The Idea]
- select from a list box an item
- a detail view appears. which edit the underlaying data-object
- save the date

[The Problem]
- selecting an item from a listbox and show the detail-data with ajax-request work.
- the FIRST time after changing the item-list i edit a field from the detail-data and submit the form, the changes are not saved in the bean (and the action-method isn't invoked)
- the SECOND time (without changing the item, just edit the field again) works (model-update and action-method)
>> Problem doesn't occurs when i deactivate the ajax-change event on the listbox and make a full request

[The Code]
Simple Java Bean:

the handler

@ManagedBean(name = "demoHandler")
@SessionScoped
public class DemoHandler
{

private HashMap<String, DemoBean> map = new HashMap<String, DemoBean>();

private DemoBean                  selectedBean;

@PostConstruct
  private void init()
  {
    map.put("ID1", new DemoBean("ID1", "Ich bin Id 1"));
    map.put("ID2", new DemoBean("ID2", "Ich bin Id 2"));
    map.put("ID3", new DemoBean("ID3", "Ich bin Id 3"));
    map.put("ID4", new DemoBean("ID4", "Ich bin Id 4"));
  }

public DemoBean getSelectedBean()
  {
    return selectedBean;
  }

public void setSelectedBean(DemoBean selectedBean)
  {
    this.selectedBean = selectedBean;
  }

public Set<String> getIds()
  {
    return this.map.keySet();
  }

public String getSelectedBeanId()
  {
    return selectedBean == null ? null : selectedBean.getId();
  }

public void setSelectedBeanId(String selectedBeanId)
  {
    this.selectedBean = map.get(selectedBeanId);
  }

public String printout()
  {
    System.out.println(this.selectedBean.getText());
    return null;
  }

}

the page:

I am out of ideas, maybe someone else can test it and see my mistake .

Thanks a lot
Dom

Dominik Müller

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Posts: 36

posted 14 years ago

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Hi All,

i have no ideas, removed ajax functions from my application for resolving the problem, but that isn't a real good solution.

To test it, i uploaded a little war file, including the sources, i hope somebody can test it and maybe find the solution.

http://rapidshare.com/files/423794519/AjaxBug.war

Thanks a lot again.
Dom

Ilari Moilanen

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Posts: 199

posted 14 years ago

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Just a guess, but maybe something to test.

You are updating a value in different form there. Is it possible to combine those two forms and send both requests (ajax and full) from the same form?

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