Object pk=rawPrimaryKeyInTransaction(); if(pk == null) return null; if(pk instanceof String || pk instanceof Number) { return pk.toString(); } return NSPropertyListSerialization.stringFromPropertyList(pk);
return ERXEOControlUtilities._stringForPrimaryKey(rawPrimaryKeyInTransaction());
    public String primaryKeyInTransaction() {        Object pk=rawPrimaryKeyInTransaction();        if(pk == null)            return null;        if(pk instanceof String || pk instanceof Number) {            return pk.toString();        }        return NSPropertyListSerialization.stringFromPropertyList(pk);    }