Struct ComponentColumnDescriptor 

pub struct ComponentColumnDescriptor {
    pub store_datatype: DataType,
    pub component_type: Option<ComponentType>,
    pub entity_path: EntityPath,
    pub archetype: Option<ArchetypeName>,
    pub component: ComponentIdentifier,
    pub is_static: bool,
    pub is_tombstone: bool,
    pub is_semantically_empty: bool,
}

This is an ArrowField that contains specific meta-data.

Fields

store_datatype: DataType

The Arrow datatype of the stored column.

This is the log-time datatype corresponding to how this data is encoded in a chunk. Currently this will always be an arrow::array::ListArray, but as we introduce mono-type optimization, this might be a native type instead.

component_type: Option<ComponentType>

Optional semantic name associated with this data.

This is fully implied by the component, but included for semantic convenience.

Example: rerun.components.Position3D.

entity_path: EntityPath

The path of the entity.

If this column is part of a chunk batch, this is the same for all columns in the batch, and will also be set in the schema for the whole chunk.

If this is missing from the metadata, it will be set to /.

archetype: Option<ArchetypeName>

Optional name of the Archetype associated with this data.

None if the data wasn’t logged through an archetype.

Example: rerun.archetypes.Points3D.

component: ComponentIdentifier

Identifier of the field associated with this data.

None if the data wasn’t logged through an archetype.

Example: positions.

is_static: bool

Whether this column represents static data.

IMPORTANT: this is not always accurate, see crate::ChunkBatch::chunk_schema.

is_tombstone: bool

Whether this column represents a Clear-related components.

IMPORTANT: this is not always accurate, see crate::ChunkBatch::chunk_schema.

is_semantically_empty: bool

Whether this column contains either no data or only contains null and/or empty values ([]).

IMPORTANT: this is not always accurate, see crate::ChunkBatch::chunk_schema.

Implementations

impl ComponentColumnDescriptor

pub fn sanity_check(&self)

Debug-only sanity check.

pub fn component_path(&self) -> ComponentPath

pub fn component_descriptor(&self) -> ComponentDescriptor

pub fn is_static(&self) -> bool

pub fn matches(&self, selector: &ComponentColumnSelector) -> bool

Checks if the current column descriptor matches a given ComponentColumnSelector.

pub fn returned_datatype(&self) -> DataType

pub fn inner_datatype(&self) -> DataType

Returns the child’s datatype of the outer list-array.

Logs a warning if the outer type is not a list-array, which should never happen in current Sorbet versions.

pub fn display_name(&self) -> &str

What we show in the UI

pub fn column_name(&self, batch_type: BatchType) -> String

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

impl ComponentColumnDescriptor

pub fn from_arrow_field( chunk_entity_path: Option<&EntityPath>, field: &Field, ) -> ComponentColumnDescriptor

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 ComponentColumnDescriptor

fn clone(&self) -> ComponentColumnDescriptor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComponentColumnDescriptor

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

Formats the value using the given formatter.

impl Display for ComponentColumnDescriptor

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

Formats the value using the given formatter.

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

fn from(desc: &'a ComponentColumnDescriptor) -> ColumnDescriptorRef<'a>

Converts to this type from the input type.

impl From<&ComponentColumnDescriptor> for ComponentDescriptor

fn from(descr: &ComponentColumnDescriptor) -> ComponentDescriptor

Converts to this type from the input type.

impl From<ComponentColumnDescriptor> for ComponentColumnSelector

fn from(desc: ComponentColumnDescriptor) -> ComponentColumnSelector

Converts to this type from the input type.

impl From<ComponentColumnDescriptor> for ComponentDescriptor

fn from(descr: ComponentColumnDescriptor) -> ComponentDescriptor

Converts to this type from the input type.

impl From<ComponentColumnDescriptor> for IndexColumn

fn from(value: ComponentColumnDescriptor) -> IndexColumn

Converts to this type from the input type.

impl From<ComponentColumnDescriptor> for IndexColumn

fn from(value: ComponentColumnDescriptor) -> IndexColumn

Converts to this type from the input type.

impl Hash for ComponentColumnDescriptor

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

where __H: Hasher,

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 ComponentColumnDescriptor

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

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

fn partial_cmp(&self, other: &ComponentColumnDescriptor) -> 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 SizeBytes for ComponentColumnDescriptor

fn heap_size_bytes(&self) -> u64

Returns how many bytes self uses on the heap.

fn total_size_bytes(&self) -> u64

Returns the total size of self in bytes, accounting for both stack and heap space.

fn stack_size_bytes(&self) -> u64

Returns the total size of self on the stack, in bytes.

fn is_pod() -> bool

Is Self just plain old data?

impl Eq for ComponentColumnDescriptor

impl StructuralPartialEq for ComponentColumnDescriptor