Trait SetVirtualDataColumn 

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

Trait for types that can be written to a [ColumnBuilder] 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 ColumnBuilder) -> Result<(), &'static str>

Writes this value (sequentially) to the given column builder.

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

fn new_builder() -> ColumnBuilder

Creates a new empty column builder 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".

Implementations on Foreign Types

impl SetVirtualDataColumn for Option<bool>

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

fn new_builder() -> ColumnBuilder

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<f64>

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

fn new_builder() -> ColumnBuilder

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<i32>

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

fn new_builder() -> ColumnBuilder

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<i64>

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

fn new_builder() -> ColumnBuilder

fn to_scalar(self) -> Scalar

impl SetVirtualDataColumn for Option<String>

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

fn new_builder() -> ColumnBuilder

fn to_scalar(self) -> Scalar

Implementors