/*

    // The problem here is that an LDAP Address Book may exist as 

    // a Mozilla Address Book. So we need to limit the number of

    // records returned by the Server:

    // 1. Determine if this is an LDAP Address Book 

    // [LDAP overrides the default operations(write|read|search) of all types with search only].

    // 2. Determine if the limit is already set by us.

    // 3. Use the mozilla preferences to see if this value is set.

    // 4. Use value or else default to 100.

    */

    PRBool isWriteable;

    rv = directory->GetOperations (&isWriteable);

    NS_ENSURE_SUCCESS(rv, rv);

    if (!(isWriteable & nsIAbDirectory::opWrite))

    {

        if(m_nMaxNrOfReturns == -1)

        {

            // Determine if the limit maxHits has been set in the mozilla preferences

            // if set, then use the value otherwise default to 100

            nsCOMPtr<nsIPref> prefs = do_GetService(NS_PREF_CONTRACTID, &rv); 

            NS_ENSURE_SUCCESS(rv, rv);

            // create the ldap maxHits entry for the preferences file.

            // Note: maxHits is applicable to LDAP only in mozilla.

            nsCAutoString prefName(NS_LITERAL_CSTRING("ldap_2.servers."));

            const char *pAddressBook = MTypeConverter::ouStringToCCharStringAscii(m_aAddressbook);

            prefName.Append(pAddressBook);

            prefName.Append(NS_LITERAL_CSTRING(".maxHits"));

           PRInt32 maxHits;

           rv = prefs->GetIntPref(prefName.get(), &maxHits);

           if (NS_FAILED(rv))

               m_nMaxNrOfReturns = 100;

           else

               m_nMaxNrOfReturns = maxHits;

        }

    }