protected HashMap createMapOfParameters(Map objectModel,
    Collection set) 
{
        String name;
        HashMap params = new HashMap(set.size());
        // put required params into hash
        Request request = ObjectModelHelper.getRequest(objectModel);
        for (Iterator i = set.iterator(); i.hasNext();) {
            name = ((Configuration) i.next()).getAttribute("name", "").trim();
            Object[] values = request.getParameterValues(name);
            if (values != null) {
                switch (values.length) {
                    case 0 :
                        params.put(name, null);
                        break;
                    case 1 :
                        params.put(name, values[0]);
                        break;
                    default :
                        params.put(name, values);
                }
            } else {
                params.put(name, values);
            }
        }
        return params;
}

Reads parameter values from request parameters for all parameters that are contained in the active constraint list. If a parameter has multiple values, all are stored in the resulting map.

 boolean isStringEncoded() 
{
        return true;
}