Struct QueryPlan 

pub struct QueryPlan {
    pub mode: QueryMode,
    pub driver_domain: Option<SemanticDomain>,
    pub peer_domains: HashSet<SemanticDomain>,
    pub driver_signature: Vec<TypeId>,
}

A pre-calculated execution strategy for a specific set of component types.

This plan is cached in the World to avoid re-analyzing query signatures on every frame.

Fields

mode: QueryMode

The execution mode (Native or Transversal).

driver_domain: Option<SemanticDomain>

If Transversal, this is the domain that drives the iteration.

peer_domains: HashSet<SemanticDomain>

If Transversal, these are the peer domains that must be joined.

driver_signature: Vec<TypeId>

The signature used to find matching pages (driver domain components).

Implementations

impl QueryPlan

pub fn new( is_transversal: bool, driver_domain: Option<SemanticDomain>, peer_domains: HashSet<SemanticDomain>, driver_signature: Vec<TypeId>, ) -> Self

Creates a new QueryPlan for the given component types.

Trait Implementations

impl Clone for QueryPlan

fn clone(&self) -> QueryPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryPlan

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

Formats the value using the given formatter.