Trait SetVirtualDataColumn 

pub trait SetVirtualDataColumn {
    // Required methods
    fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>;
    fn new_column() -> VirtualDataColumn;
    fn to_scalar(self) -> Scalar;
}

Trait for types that can be written to a VirtualDataColumn which enforces sequential construction.

This trait enables type-safe insertion of values into virtual data columns, ensuring that values are written to columns of the correct type.

Required Methods

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

Writes this value (sequentially) to the given column.

Returns an error if the column type does not match the value type.

fn new_column() -> VirtualDataColumn

Creates a new empty column of the appropriate type for this value.

fn to_scalar(self) -> Scalar

Converts this value to a Scalar representation.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl SetVirtualDataColumn for Option<bool>

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

fn new_column() -> VirtualDataColumn

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<f64>

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

fn new_column() -> VirtualDataColumn

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<i32>

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

fn new_column() -> VirtualDataColumn

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<i64>

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

fn new_column() -> VirtualDataColumn

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<String>

fn write_to(self, col: &mut VirtualDataColumn) -> Result<(), &'static str>

fn new_column() -> VirtualDataColumn

fn to_scalar(self) -> Scalar

Implementors