Search a Cutomer through API

Hi,

I am trying to search a Customer thanks to SOAP API on a basic field.
But I don't understand where my criteria has to be set...


Here is my snippet :



       CustomerSearch customerSearch = new CustomerSearch();

        SearchRequest sr = new SearchRequest();
        sr.setSearchRecord(customerSearch);

        SearchResponse searchResp = webService.search(sr);

        List<Customer> customerList = new ArrayList<Customer>();
        if(searchResp.getSearchResult().getStatus().isIsSuccess())
        {
            RecordList rl = searchResp.getSearchResult().getRecordList();
            for(Record r : rl.getRecord())
            {
                Customer c = (Customer)r;
                customerList.add(c);
                System.out.println(c.getAccountNumber());
            }
        }