public Object getAsObject(FacesContext context, UIComponent component, String value) {
       return value;
    }

    public String getAsString(FacesContext context, UIComponent component, Object value) {
        if (value == null) {
            return null;
        }
        Clob clobData = (Clob) value;
        Reader reader = null;
        try {
            reader = clobData.getCharacterStream();
        } catch (SQLException ex) {
            return ex.getMessage();
        }
        CharArrayWriter writer = new CharArrayWriter();
        int i = -1;
        try {
            while ((i = reader.read()) != -1) {
                writer.write(i);
            }
        } catch (IOException ex) {
            return ex.getMessage();
        }
        return new String(writer.toCharArray());
    }