pub trait PlanNodeMeta {
type Convention: ConventionMarker;
const NODE_TYPE: PlanNodeType;
// Required methods
fn plan_base(&self) -> &PlanBase<Self::Convention>;
fn plan_base_ref(&self) -> PlanBaseRef<'_>;
}Expand description
The trait for accessing the meta data and PlanBase for plan nodes.
Required Associated Constants§
const NODE_TYPE: PlanNodeType
Required Associated Types§
Required Methods§
Sourcefn plan_base(&self) -> &PlanBase<Self::Convention>
fn plan_base(&self) -> &PlanBase<Self::Convention>
Get the reference to the PlanBase with corresponding convention.
Sourcefn plan_base_ref(&self) -> PlanBaseRef<'_>
fn plan_base_ref(&self) -> PlanBaseRef<'_>
Get the reference to the PlanBase with erased convention.
This is mainly used for implementing AnyPlanNodeMeta. Callers should prefer
PlanNodeMeta::plan_base instead as it is more type-safe.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.