Struct vrp_core::construction::constraints::CapacityConstraintModule

pub struct CapacityConstraintModule<T: Load + Add<Output = T> + Sub<Output = T> + 'static> { /* fields omitted */ }

A module which ensures vehicle capacity limitation while serving customer’s demand.

Implementations

impl<T: Load + Add<Output = T> + Sub<Output = T> + 'static> CapacityConstraintModule<T>

pub fn new(
    transport: Arc<dyn TransportCost + Send + Sync>,
    activity: Arc<dyn ActivityCost + Send + Sync>,
    code: i32
) -> Self

Creates a new instance of CapacityConstraintModule without multi trip (reload) functionality

pub fn new_with_multi_trip(
    transport: Arc<dyn TransportCost + Send + Sync>,
    activity: Arc<dyn ActivityCost + Send + Sync>,
    code: i32,
    multi_trip: Arc<dyn MultiTrip<T> + Send + Sync>
) -> Self

Creates a new instance of CapacityConstraintModule with multi trip (reload) functionality

Trait Implementations

impl<T: Load + Add<Output = T> + Sub<Output = T> + 'static> ConstraintModule for CapacityConstraintModule<T>

fn accept_insertion(
    &self,
    solution_ctx: &mut SolutionContext,
    route_index: usize,
    job: &Job
)

Accept insertion of specific job into the route. Called once job has been inserted into solution represented via solution_ctx. Target route is defined by route_index which refers to routes collection in solution context. 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. Please note, that it is important to update only stale routes as this allows to avoid updating non changed route states.

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.