>> From a java class, I would like to look for an IDM user in the lighthouse with a login name as a search criteria, how can I do this ?
Method 1 if you don't call it from your webapps, and suppose you create a class to query you repository.
Method 2 supposed you call your class from the webapps.
Method 1(bad and ugly method, but no need to read specification): look in your repository, lighouse user are stored here.
Look, for example, in the account table.
Method 2: Read the waveset javadoc, at WSUser.
(IDPACK_2005Q3M3/REF/javadoc/com/waveset/object/WSUser.html)
WSUser(java.lang.String name, java.lang.String noop)
try this :
WSUser user = new WSUser("youraccountname", null);