Struct ObjectiveRegistry 

pub struct ObjectiveRegistry<T: Send + Sync> { /* private fields */ }

Registry of named objectives.

Thread-safe: all operations are behind a single RwLock.

Implementations

impl<T: Send + Sync> ObjectiveRegistry<T>

pub fn new() -> Self

Create an empty registry with no objectives and no default set.

pub fn register( &self, name: impl Into<String>, objective: Box<dyn Objective<T>>, ) -> Option<Arc<RegisteredObjective<T>>>

Register a named objective; returns the previous entry if the name was already taken.

pub fn register_with_desc( &self, name: impl Into<String>, description: impl Into<String>, objective: Box<dyn Objective<T>>, ) -> Option<Arc<RegisteredObjective<T>>>

Register a named objective with a human-readable description.

pub fn set_default(&self, name: impl Into<String>) -> ObjectiveResult<()>

Set the named objective as the registry default.

Returns ObjectiveError::NotFound when no objective with that name is registered.

pub fn get(&self, name: &str) -> ObjectiveResult<Arc<RegisteredObjective<T>>>

Retrieve a registered objective by name.

Returns ObjectiveError::NotFound when the name is not registered.

pub fn get_default(&self) -> ObjectiveResult<Arc<RegisteredObjective<T>>>

Retrieve the current default objective.

Returns ObjectiveError::NotFound when no default has been set.

pub fn list(&self) -> Vec<String>

List all registered objective names in sorted order.

pub fn contains(&self, name: &str) -> bool

Return true if an objective with the given name is registered.

pub fn score( &self, name: &str, candidate: &T, context: &ObjectiveContext, ) -> ObjectiveResult<f64>

Raw score via a named objective (no precision weighting).

pub fn select<'a>( &self, name: &str, candidates: &'a [T], context: &ObjectiveContext, ) -> ObjectiveResult<Selection<&'a T>>

Select the best candidate using the named objective.

Returns ObjectiveError::NoMatch when the candidate slice is empty.

pub fn select_default<'a>( &self, candidates: &'a [T], context: &ObjectiveContext, ) -> ObjectiveResult<Selection<&'a T>>

Select the best candidate using the current default objective.

Returns ObjectiveError::NotFound when no default is set.

Trait Implementations

impl<T: Send + Sync> Debug for ObjectiveRegistry<T>

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

Formats the value using the given formatter.

impl<T: Send + Sync> Default for ObjectiveRegistry<T>

fn default() -> Self

Returns the “default value” for a type.