LDAPConnection

LDAPConnection.search()

LDAPConnection conn = ...

LDAPSearchConstraints searchConstraints = new LDAPSearchConstraints();
searchConstraints.setMaxResults(maxEntries);
searchConstraints.setServerTimeLimit(timeLimit);

LDAPSearchResults results = conn.search(
    baseDN,
    scope,
    filter,
    attrs,
    attrsOnly,
    searchConstraints);

while (results.hasMoreElements()) {
    LDAPEntry entry = results.next();
    ...
}