Struct ActivityTimeConstraint 

pub struct ActivityTimeConstraint {
    pub earliest_start_ms: Option<i64>,
    pub latest_start_ms: Option<i64>,
    pub earliest_end_ms: Option<i64>,
    pub latest_end_ms: Option<i64>,
    pub constraint_type: ConstraintType,
    pub penalty_per_ms: f64,
}

Time constraint for an activity.

Unlike calendar TimeWindow (which models resource availability), this struct represents scheduling-level boundaries: earliest/latest start and end times, optionally with penalties.

Examples

use u_schedule::models::time_constraints::{ActivityTimeConstraint, ConstraintType};

// Hard deadline: must finish by 5000 ms
let c = ActivityTimeConstraint::deadline(5000);
assert!(c.check_violation(0, 4000).is_none());
assert!(c.check_violation(0, 6000).is_some());

Fields

earliest_start_ms: Option<i64>

Earliest allowed start time (ms).

latest_start_ms: Option<i64>

Latest allowed start time (ms).

earliest_end_ms: Option<i64>

Earliest allowed end time (ms).

latest_end_ms: Option<i64>

Latest allowed end time (ms) — due date.

constraint_type: ConstraintType

Hard or soft constraint.

penalty_per_ms: f64

Penalty per millisecond of violation (for soft constraints).

Implementations

impl ActivityTimeConstraint

pub fn new() -> Self

Creates an empty (unconstrained) time constraint.

pub fn bounded(start_ms: i64, end_ms: i64) -> Self

Creates a constraint with start/end boundaries.

pub fn deadline(deadline_ms: i64) -> Self

Creates a hard deadline (must complete by).

pub fn release(release_ms: i64) -> Self

Creates a release time (cannot start before).

pub fn hard(self) -> Self

Sets as hard constraint.

pub fn soft(self, penalty_per_ms: f64) -> Self

Sets as soft constraint with penalty.

pub fn with_earliest_start(self, ms: i64) -> Self

Sets earliest start.

pub fn with_latest_start(self, ms: i64) -> Self

Sets latest start.

pub fn with_due_date(self, ms: i64) -> Self

Sets latest end (due date).

pub fn check_violation( &self, start_ms: i64, end_ms: i64, ) -> Option<TimeWindowViolation>

Checks if a scheduled time violates the constraint.

Returns None if no violation, or a TimeWindowViolation with details.

Trait Implementations

impl Clone for ActivityTimeConstraint

fn clone(&self) -> ActivityTimeConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActivityTimeConstraint

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

Formats the value using the given formatter.

impl Default for ActivityTimeConstraint

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ActivityTimeConstraint

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ActivityTimeConstraint

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.