Trait TypedGetData 

pub trait TypedGetData<'a, T> {
    // Required method
    fn get_opt(
        &'a self,
        row_index: usize,
        field_name: &str,
    ) -> DeltaResult<Option<T>>;

    // Provided method
    fn get(&'a self, row_index: usize, field_name: &str) -> DeltaResult<T> { ... }
}

This is a convenience wrapper over GetData to allow code like: let name: Option<String> = getters[1].get_opt(row_index, "metadata.name")?;

Required Methods

fn get_opt( &'a self, row_index: usize, field_name: &str, ) -> DeltaResult<Option<T>>

Provided Methods

fn get(&'a self, row_index: usize, field_name: &str) -> DeltaResult<T>

Implementors

impl<'a> TypedGetData<'a, &'a str> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, &'a [u8]> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, bool> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, f32> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, f64> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, i8> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, i16> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, i32> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, i64> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, i128> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, String> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, Vec<String>> for dyn GetData<'a> + '_

Provide an impl to get a list field as a Vec<String>. Note that this will allocate the vector and allocate for each string entry.

impl<'a> TypedGetData<'a, HashMap<String, String>> for dyn GetData<'a> + '_

Provide an impl to get a map field as a HashMap<String, String>. Note that this will allocate the map and allocate for each entry

impl<'a> TypedGetData<'a, ListItem<'a>> for dyn GetData<'a> + '_

impl<'a> TypedGetData<'a, MapItem<'a>> for dyn GetData<'a> + '_