Struct SharedAdaptiveContext 

pub struct SharedAdaptiveContext { /* private fields */ }

Thread-safe wrapper for AdaptiveContext.

Allows multiple operators to report cardinalities concurrently.

Implementations

impl SharedAdaptiveContext

pub fn new() -> Self

Creates a new shared context.

pub fn from_context(ctx: AdaptiveContext) -> Self

Creates from an existing context.

pub fn record_actual(&self, operator_id: &str, actual: u64)

Records actual cardinality for an operator.

pub fn should_reoptimize(&self) -> bool

Checks if re-optimization should be triggered.

pub fn snapshot(&self) -> Option<AdaptiveContext>

Gets a read-only snapshot of the context.

Trait Implementations

impl Clone for SharedAdaptiveContext

fn clone(&self) -> SharedAdaptiveContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SharedAdaptiveContext

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

Formats the value using the given formatter.

impl Default for SharedAdaptiveContext

fn default() -> Self

Returns the “default value” for a type.