src/main/java/org/efaps/ui/wicket/models/objects/UIForm.java
@Override
    public void execute()
    {
        try {
            // evaluate now to give the chance to change the mode
            if (evaluate4Instance()) {
                if (isCreateMode() || isSearchMode()) {
                    execute4NoInstance();
                } else {
                    if (getInstance() == null) {
                        execute4NoInstance();
                    } else {
                        execute4Instance();
                    }
                }
            }
        } catch (final EFapsException e) {
            throw new RestartResponseException(new ErrorPage(e));
        }
        super.setInitialized(true);
    }
@Override
    public void execute()
    {
        try {
            // evaluate now to give the chance to change the mode
            if (evaluate4Instance()) {
                if (isCreateMode() || isSearchMode()) {
                    execute4NoInstance();
                } else {
                    if (getInstance() == null) {
                        execute4NoInstance();
                    } else {
                        execute4Instance();
                    }
                }
            }
        } catch (final EFapsException e) {
            throw new RestartResponseException(new ErrorPage(e));
        }
        super.setInitialized(true);
    }
Method is used to execute the UIForm. (Fill it with data).