if (getFieldData()==null) return BYTES_NULL_VALUE;
if (getFieldData() == null) {  if (bytes != null) return bytes; else if (binaryStream != null) throw new FBDriverNotCapableException(); else if (characterStream != null) throw new FBDriverNotCapableException(); else return BYTES_NULL_VALUE; }
    public byte[] getCachedObject() throws SQLException {        if (getFieldData()==null)             return BYTES_NULL_VALUE;		  return getBytesInternal();    }