Struct Scope 

pub struct Scope {
    pub cats: Vec<CategoryId>,
    pub keys: BTreeSet<Vec<ItemId>>,
}

The coordinates a statement touched, over one relation’s dimension categories.

Fields

cats: Vec<CategoryId>

The touched categories.

keys: BTreeSet<Vec<ItemId>>

Touched coordinates: one item per Scope::cats entry.

Implementations

impl Scope

pub fn from_rows( model: &Model, cats: &[CategoryId], rows: &[Vec<Option<String>>], ) -> Scope

From transition-table rows (item names in cats order). A row with a NULL or never-minted value is skipped: no cell can have it.

pub fn restrict_inputs(&self, model: &mut Model)

Drop the input cells no in-scope output cell reads: those whose projection onto the touched categories was not touched. Valid only for an element-wise Plan.

pub fn retain_rows( &self, model: &Model, measure: MeasureId, rows: &mut ResultRows, ) -> Result<()>

Keep only measure’s result rows in scope.

Trait Implementations

impl Clone for Scope

fn clone(&self) -> Scope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Scope

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

Formats the value using the given formatter.

impl Default for Scope

fn default() -> Scope

Returns the “default value” for a type.

impl PartialEq for Scope

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Scope