How can I change LDAT user attbibutes from my application ???

Question

how can I change user attbibutes from my application!!!!
It always tries to create a new user but I need to change only values (like tel number!!!) of EXSISTING user!!!
I can not find any class/method to change the value of existing User attribute !!!
I am totally pissed off, please help!!!
I tried this :
AMUser user = amsc.getUser(userDN);
user.setStringAttribute("givenname", "test");

Answer 1

chek this out----
String lastName = req.getParameter("lastname");
storeUserAttributes("sn", lastName, userAttributeMap);
private void storeUserAttributes(String attribute, String value, Map userMap)
Set userSet = new HashSet();
userSet.add(value);
userMap.put(attribute, userSet);
AMPeopleContainer ampc = conn.getPeopleContainer(ouDN);
AMPeopleContainer ampc = conn.getPeopleContainer(ouDN);
if(ampc !=null)
/*My code for create users with Sun Portal Desktop service*/
Set serviceNamesSet = new HashSet();
Set userSet = new HashSet();
serviceNamesSet.add("SunPortalDesktopService");
userSet = ampc.createUsers(userMap1, serviceNamesSet);
this will help u
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