initialization function

! * \brief optionally redirect to google's init log * \param argv0 The arguments. */

implement InitRequest

constructor

! * \brief constructor * \param uri the uri of the input, can contain hdfs prefix * \param part_index the part id of current input * \para

! * \brief Determine whether a given path is a symbolic link * \param path String representation of path */

! \return list all names registered in the registry, including alias */

! \brief construct an nil ref */

! * \brief constructor * \param p_buffer the head pointer of the memory region. * \param buffer_size the size of the memorybuffer */

! \brief constructor */

! * \brief constructor * \param p_buffer the pointer to the string. */

! * \brief adapt the iterator interface's Next * NOTE: the call to this function is not threadsafe * use the other Next instead * \retur

! * \brief get a chunk of memory that can contain multiple records, * with hint for how many records is needed, * the caller needs to parse

! * \brief fill the given * chunk with new batch of data without using internal * temporary chunk */

implement next chunk

implement next chunk

implement next chunk

implement next chunk

implement next record

implement next record

implement next record

implement next record

! \brief not support BeforeFirst */

! * \brief constructor * \param msg error message */

override print behavior

override print behavior

override print default