Enum ColumnValue

pub enum ColumnValue {
    Number(usize),
    Column(RefCell<OColumnBaseChunk>),
}

A value is a collection of lookup devices. A number is decoded by the appropriate function, but the object is a reference to one of the number columns. Number types are eventually sorted, so we track the column and index with the data.

Variants

Number(usize)

raw number index pointing to a location in the cache column

Column(RefCell<OColumnBaseChunk>)

a reference to a column

Trait Implementations

impl Clone for ColumnValue

fn clone(&self) -> ColumnValue

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColumnValue

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<RefCell<OColumnBaseChunk>> for ColumnValue

fn from(chunk: RefCell<OColumnBaseChunk>) -> Self

Converts to this type from the input type.

impl From<usize> for ColumnValue

fn from(index: usize) -> Self

Converts to this type from the input type.

impl Ord for ColumnValue

fn cmp(&self, other: &ColumnValue) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ColumnValue

fn eq(&self, other: &ColumnValue) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ColumnValue

fn partial_cmp(&self, other: &ColumnValue) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for ColumnValue

impl StructuralPartialEq for ColumnValue