Enum ColumnDescriptor

pub enum ColumnDescriptor {
    Time(IndexColumnDescriptor),
    Component(ComponentColumnDescriptor),
}

Variants

Time(IndexColumnDescriptor)

Component(ComponentColumnDescriptor)

Implementations

impl ColumnDescriptor

pub fn sanity_check(&self)

Debug-only sanity check.

pub fn entity_path(&self) -> Option<&EntityPath>

pub fn component_name(&self) -> Option<&ComponentName>

pub fn short_name(&self) -> String

pub fn is_static(&self) -> bool

pub fn arrow_datatype(&self) -> ArrowDatatype

pub fn to_arrow_field(&self, batch_type: BatchType) -> ArrowField

pub fn to_arrow_fields(columns: &[Self], batch_type: BatchType) -> ArrowFields

pub fn from_arrow_fields( chunk_entity_path: Option<&EntityPath>, fields: &[ArrowFieldRef], ) -> Result<Vec<Self>, ColumnError>

chunk_entity_path: if this column is part of a chunk batch, what is its entity path (so we can set ComponentColumnDescriptor::entity_path)?

impl ColumnDescriptor

pub fn try_from_arrow_field( chunk_entity_path: Option<&EntityPath>, field: &ArrowField, ) -> Result<Self, ColumnError>

chunk_entity_path: if this column is part of a chunk batch, what is its entity path (so we can set ComponentColumnDescriptor::entity_path)?

Trait Implementations

impl Clone for ColumnDescriptor

fn clone(&self) -> ColumnDescriptor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnDescriptor

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

Formats the value using the given formatter.

impl<'a> From<&'a ColumnDescriptor> for ColumnDescriptorRef<'a>

fn from(desc: &'a ColumnDescriptor) -> Self

Converts to this type from the input type.

impl Hash for ColumnDescriptor

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ColumnDescriptor

fn cmp(&self, other: &ColumnDescriptor) -> 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 ColumnDescriptor

fn eq(&self, other: &ColumnDescriptor) -> 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 ColumnDescriptor

fn partial_cmp(&self, other: &ColumnDescriptor) -> 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 ColumnDescriptor

impl StructuralPartialEq for ColumnDescriptor