Struct vrp_core::prelude::EvolutionConfigBuilder

pub struct EvolutionConfigBuilder<C, O, S, K>where
    C: 'static + HeuristicContext<Objective = O, Solution = S> + Stateful<Key = K>,
    O: 'static + HeuristicObjective<Solution = S>,
    S: 'static + HeuristicSolution,
    K: 'static + Hash + Eq + Clone + Send + Sync,{ /* private fields */ }

Provides configurable way to build evolution configuration using fluent interface style.

Implementations

impl<C, O, S, K> EvolutionConfigBuilder<C, O, S, K>where
    C: 'static + HeuristicContext<Objective = O, Solution = S> + Stateful<Key = K>,
    O: 'static + HeuristicObjective<Solution = S>,
    S: 'static + HeuristicSolution,
    K: 'static + Hash + Eq + Clone + Send + Sync,

pub fn with_max_generations(
    self,
    limit: Option<usize>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets max generations to be run by evolution. Default is 3000.

pub fn with_max_time(
    self,
    limit: Option<usize>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets max running time limit for evolution. Default is 300 seconds.

pub fn with_min_cv(
    self,
    min_cv: Option<(String, usize, f64, bool)>,
    key: K
) -> EvolutionConfigBuilder<C, O, S, K>

Sets variation coefficient termination criteria. Default is None.

pub fn with_target_proximity(
    self,
    target_proximity: Option<(Vec<f64, Global>, f64)>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets target fitness and distance threshold as termination criteria.

pub fn with_initial(
    self,
    max_size: usize,
    quota: f64,
    operators: Vec<(Box<dyn InitialOperator<Objective = O, Context = C, Solution = S> + Sync + Send + 'static, Global>, usize), Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets initial parameters used to construct initial population.

pub fn with_processing(
    self,
    processing: ProcessingConfig<C, O, S>
) -> EvolutionConfigBuilder<C, O, S, K>

Specifies processing configuration.

pub fn with_init_solutions(
    self,
    solutions: Vec<S, Global>,
    max_init_size: Option<usize>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets initial solutions in population. Default is no solutions in population.

pub fn with_objective(
    self,
    objective: Arc<dyn HeuristicObjective<Solution = S> + 'static>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets objective.

pub fn with_context(self, context: C) -> EvolutionConfigBuilder<C, O, S, K>

Sets heuristic context.

pub fn with_termination(
    self,
    termination: Box<dyn Termination<Context = C, Objective = O> + 'static, Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets termination.

pub fn with_heuristic(
    self,
    heuristic: Box<dyn HyperHeuristic<Solution = S, Objective = O, Context = C> + 'static, Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets a different heuristic replacing initial.

pub fn with_strategy(
    self,
    strategy: Box<dyn EvolutionStrategy<Solution = S, Context = C, Objective = O> + 'static, Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets a different heuristic replacing initial.

pub fn with_search_operators(
    self,
    search_operators: Vec<(Arc<dyn HeuristicSearchOperator<Objective = O, Context = C, Solution = S> + Sync + Send + 'static>, String), Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets search operators for dynamic heuristic.

pub fn with_diversify_operators(
    self,
    diversify_operators: Vec<Arc<dyn HeuristicDiversifyOperator<Solution = S, Context = C, Objective = O> + Sync + Send + 'static>, Global>
) -> EvolutionConfigBuilder<C, O, S, K>

Sets diversify operators for dynamic heuristic.

pub fn build(self) -> Result<EvolutionConfig<C, O, S>, String>

Builds the evolution config.

Trait Implementations

impl<C, O, S, K> Default for EvolutionConfigBuilder<C, O, S, K>where
    C: 'static + HeuristicContext<Objective = O, Solution = S> + Stateful<Key = K>,
    O: 'static + HeuristicObjective<Solution = S>,
    S: 'static + HeuristicSolution,
    K: 'static + Hash + Eq + Clone + Send + Sync,

fn default() -> EvolutionConfigBuilder<C, O, S, K>

Returns the “default value” for a type.