Struct CubeSchema 

pub struct CubeSchema { /* private fields */ }

Schema metadata for an ElastiCube

Contains all metadata about dimensions, measures, and hierarchies, providing a semantic layer over the raw Arrow data.

Implementations

impl CubeSchema

pub fn new(name: impl Into<String>) -> Self

Create a new cube schema

pub fn name(&self) -> &str

Get the cube name

pub fn description(&self) -> Option<&str>

Get the description

pub fn set_description(&mut self, description: impl Into<String>)

Set the description

pub fn add_dimension(&mut self, dimension: Dimension) -> Result<()>

Add a dimension to the schema

pub fn add_measure(&mut self, measure: Measure) -> Result<()>

Add a measure to the schema

pub fn add_hierarchy(&mut self, hierarchy: Hierarchy) -> Result<()>

Add a hierarchy to the schema

pub fn dimensions(&self) -> Vec<&Dimension>

Get all dimensions

pub fn measures(&self) -> Vec<&Measure>

Get all measures

pub fn hierarchies(&self) -> Vec<&Hierarchy>

Get all hierarchies

pub fn get_dimension(&self, name: &str) -> Option<&Dimension>

Get a dimension by name

pub fn get_dimension_mut(&mut self, name: &str) -> Option<&mut Dimension>

Get a mutable dimension by name

pub fn get_measure(&self, name: &str) -> Option<&Measure>

Get a measure by name

pub fn get_measure_mut(&mut self, name: &str) -> Option<&mut Measure>

Get a mutable measure by name

pub fn get_hierarchy(&self, name: &str) -> Option<&Hierarchy>

Get a hierarchy by name

pub fn remove_dimension(&mut self, name: &str) -> Result<Dimension>

Remove a dimension

pub fn remove_measure(&mut self, name: &str) -> Result<Measure>

Remove a measure

pub fn remove_hierarchy(&mut self, name: &str) -> Result<Hierarchy>

Remove a hierarchy

pub fn dimension_count(&self) -> usize

Get the number of dimensions

pub fn measure_count(&self) -> usize

Get the number of measures

pub fn hierarchy_count(&self) -> usize

Get the number of hierarchies

pub fn has_dimension(&self, name: &str) -> bool

Check if a dimension exists

pub fn has_measure(&self, name: &str) -> bool

Check if a measure exists

pub fn has_hierarchy(&self, name: &str) -> bool

Check if a hierarchy exists

pub fn dimension_names(&self) -> Vec<&str>

Get all dimension names

pub fn measure_names(&self) -> Vec<&str>

Get all measure names

pub fn hierarchy_names(&self) -> Vec<&str>

Get all hierarchy names

pub fn add_calculated_measure( &mut self, calc_measure: CalculatedMeasure, ) -> Result<()>

Add a calculated measure to the schema

pub fn add_virtual_dimension( &mut self, virtual_dim: VirtualDimension, ) -> Result<()>

Add a virtual dimension to the schema

pub fn calculated_measures(&self) -> Vec<&CalculatedMeasure>

Get all calculated measures

pub fn virtual_dimensions(&self) -> Vec<&VirtualDimension>

Get all virtual dimensions

pub fn get_calculated_measure(&self, name: &str) -> Option<&CalculatedMeasure>

Get a calculated measure by name

pub fn get_virtual_dimension(&self, name: &str) -> Option<&VirtualDimension>

Get a virtual dimension by name

pub fn remove_calculated_measure( &mut self, name: &str, ) -> Result<CalculatedMeasure>

Remove a calculated measure

pub fn remove_virtual_dimension( &mut self, name: &str, ) -> Result<VirtualDimension>

Remove a virtual dimension

pub fn has_calculated_measure(&self, name: &str) -> bool

Check if a calculated measure exists

pub fn has_virtual_dimension(&self, name: &str) -> bool

Check if a virtual dimension exists

pub fn calculated_measure_count(&self) -> usize

Get the number of calculated measures

pub fn virtual_dimension_count(&self) -> usize

Get the number of virtual dimensions

pub fn to_arrow_schema(&self) -> Schema

Convert CubeSchema to Arrow Schema

Creates an Arrow schema containing fields for all dimensions and measures. The order is: dimensions first (in insertion order), then measures.

Trait Implementations

impl Clone for CubeSchema

fn clone(&self) -> CubeSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CubeSchema

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CubeSchema

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CubeSchema

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.