Struct vrp_core::construction::constraints::FleetUsageConstraintModule

pub struct FleetUsageConstraintModule { /* fields omitted */ }

A module which controls fleet size usage.

Implementations

impl FleetUsageConstraintModule

pub fn new_minimized() -> Self

Creates FleetUsageConstraintModule to minimize used fleet size.

pub fn new_maximized() -> Self

Creates FleetUsageConstraintModule to maximize used fleet size.

pub fn new_with_cost(extra_cost: Cost) -> Self

Creates FleetUsageConstraintModule with custom extra cost.

Trait Implementations

impl ConstraintModule for FleetUsageConstraintModule

fn accept_insertion(
    &self,
    _solution_ctx: &mut SolutionContext,
    _route_ctx: &mut RouteContext,
    _job: &Job
)

Accept insertion of specific job. Called once job has been inserted into solution represented via solution_ctx, target route is route_ctx, inserted job is job. This method should call accept_route_state internally.

fn accept_route_state(&self, _ctx: &mut RouteContext)

Accept route and updates its state to allow more efficient constraint checks.

fn accept_solution_state(&self, _ctx: &mut SolutionContext)

Accepts insertion solution context allowing to update job insertion data. This method called twice: before insertion of all jobs starts and when it ends.

fn state_keys(&self) -> Iter<i32>

Returns unique constraint state keys. Used to avoid state key interference.

fn get_constraints(&self) -> Iter<ConstraintVariant>

Returns list of constraints to be used.