Struct odbc_api::buffers::BinColumnSliceMut

pub struct BinColumnSliceMut<'a> { /* private fields */ }

A view to a mutable array parameter text buffer, which allows for filling the buffer with values.

Implementations

impl<'a> BinColumnSliceMut<'a>

pub fn set_cell(&mut self, row_index: usize, element: Option<&[u8]>)

Sets the value of the buffer at index at Null or the specified binary Text. This method will panic on out of bounds index, or if input holds a text which is larger than the maximum allowed element length. element must be specified without the terminating zero.

pub fn ensure_max_element_length(
    &mut self,
    element_length: usize,
    num_rows_to_copy: usize
) -> Result<(), Error>

Ensures that the buffer is large enough to hold elements of element_length. Does nothing if the buffer is already large enough. Otherwise it will reallocate and rebind the buffer. The first num_rows_to_copy_elements will be copied from the old value buffer to the new one. This makes this an extremly expensive operation.