Struct Hierarchy 

pub struct Hierarchy { /* private fields */ }

Represents a hierarchy in the cube

A hierarchy defines a drill-down path through related dimensions (e.g., Year → Quarter → Month → Day for time-based analysis).

Implementations

impl Hierarchy

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

Create a new hierarchy

Arguments

• name - The name of the hierarchy
• levels - Ordered list of dimension names from coarse to fine granularity

Example

let time_hierarchy = Hierarchy::new(
    "time",
    vec!["year", "quarter", "month", "day"]
);

pub fn with_config( name: impl Into<String>, levels: Vec<String>, description: Option<String>, ) -> Self

Create a new hierarchy with description

pub fn name(&self) -> &str

Get the hierarchy name

pub fn levels(&self) -> &[String]

Get the levels

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

Get the description

pub fn depth(&self) -> usize

Get the number of levels

pub fn level_at(&self, index: usize) -> Option<&str>

Get a level by index (0 = coarsest, depth-1 = finest)

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

Get the coarsest (top) level

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

Get the finest (bottom) level

pub fn parent_of(&self, level: &str) -> Option<&str>

Get the parent level of a given level

pub fn child_of(&self, level: &str) -> Option<&str>

Get the child level of a given level

pub fn contains_level(&self, level: &str) -> bool

Check if a level exists in this hierarchy

pub fn ancestors_of(&self, level: &str) -> Vec<&str>

Get all ancestor levels of a given level (from top to parent)

pub fn descendants_of(&self, level: &str) -> Vec<&str>

Get all descendant levels of a given level (from child to bottom)

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

Set the description

pub fn with_description(self, description: impl Into<String>) -> Self

Builder-style: set description

pub fn validate(&self) -> Result<(), String>

Validate the hierarchy

Trait Implementations

impl Clone for Hierarchy

fn clone(&self) -> Hierarchy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hierarchy

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Hierarchy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Hierarchy

fn eq(&self, other: &Hierarchy) -> 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 Serialize for Hierarchy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Hierarchy