Struct FeatureBuilder

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pub struct FeatureBuilder(/* private fields */);
Expand description

Provides a way to build feature with some checks.

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impl FeatureBuilder

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pub fn from_feature(feature: Feature) -> Self

Creates a builder from another feature.

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pub fn with_name(self, name: &str) -> Self

Sets given name.

Examples found in repository?
examples/custom_constraint.rs (line 111)
102fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
103    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
104    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
105    let transport_feature = TransportFeatureBuilder::new("min-distance")
106        .set_transport_cost(transport)
107        .set_time_constrained(false)
108        .build_minimize_distance()?;
109    // create our custom feature
110    let hardware_feature = FeatureBuilder::default()
111        .with_name("hardware")
112        .with_constraint(HardwareConstraint { code: ViolationCode::default() })
113        .build()?;
114
115    // configure goal of optimization
116    GoalContextBuilder::with_features(&[minimize_unassigned, transport_feature, capacity_feature, hardware_feature])?
117        .build()
118}
More examples
Hide additional examples
examples/custom_objective.rs (line 127)
117fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
118    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
119    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
120    let transport_feature = TransportFeatureBuilder::new("min-distance")
121        .set_transport_cost(transport)
122        .set_time_constrained(false)
123        .build_minimize_distance()?;
124
125    // create our custom feature that consists of an objective and a state
126    let priority_feature = FeatureBuilder::default()
127        .with_name("maximize-priority")
128        .with_objective(PriorityObjective)
129        .with_state(PriorityState)
130        .build()?;
131
132    // configure goal of optimization
133    GoalContextBuilder::with_features(&[priority_feature, minimize_unassigned, transport_feature, capacity_feature])?
134        .build()
135}
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pub fn with_constraint<T: FeatureConstraint + 'static>( self, constraint: T, ) -> Self

Adds given constraint.

Examples found in repository?
examples/custom_constraint.rs (line 112)
102fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
103    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
104    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
105    let transport_feature = TransportFeatureBuilder::new("min-distance")
106        .set_transport_cost(transport)
107        .set_time_constrained(false)
108        .build_minimize_distance()?;
109    // create our custom feature
110    let hardware_feature = FeatureBuilder::default()
111        .with_name("hardware")
112        .with_constraint(HardwareConstraint { code: ViolationCode::default() })
113        .build()?;
114
115    // configure goal of optimization
116    GoalContextBuilder::with_features(&[minimize_unassigned, transport_feature, capacity_feature, hardware_feature])?
117        .build()
118}
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pub fn with_objective<T: FeatureObjective + 'static>(self, objective: T) -> Self

Adds given objective.

Examples found in repository?
examples/custom_objective.rs (line 128)
117fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
118    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
119    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
120    let transport_feature = TransportFeatureBuilder::new("min-distance")
121        .set_transport_cost(transport)
122        .set_time_constrained(false)
123        .build_minimize_distance()?;
124
125    // create our custom feature that consists of an objective and a state
126    let priority_feature = FeatureBuilder::default()
127        .with_name("maximize-priority")
128        .with_objective(PriorityObjective)
129        .with_state(PriorityState)
130        .build()?;
131
132    // configure goal of optimization
133    GoalContextBuilder::with_features(&[priority_feature, minimize_unassigned, transport_feature, capacity_feature])?
134        .build()
135}
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pub fn with_state<T: FeatureState + 'static>(self, state: T) -> Self

Adds given state.

Examples found in repository?
examples/custom_objective.rs (line 129)
117fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
118    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
119    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
120    let transport_feature = TransportFeatureBuilder::new("min-distance")
121        .set_transport_cost(transport)
122        .set_time_constrained(false)
123        .build_minimize_distance()?;
124
125    // create our custom feature that consists of an objective and a state
126    let priority_feature = FeatureBuilder::default()
127        .with_name("maximize-priority")
128        .with_objective(PriorityObjective)
129        .with_state(PriorityState)
130        .build()?;
131
132    // configure goal of optimization
133    GoalContextBuilder::with_features(&[priority_feature, minimize_unassigned, transport_feature, capacity_feature])?
134        .build()
135}
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pub fn build(self) -> Result<Feature, GenericError>

Tries to build a feature.

Examples found in repository?
examples/custom_constraint.rs (line 113)
102fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
103    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
104    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
105    let transport_feature = TransportFeatureBuilder::new("min-distance")
106        .set_transport_cost(transport)
107        .set_time_constrained(false)
108        .build_minimize_distance()?;
109    // create our custom feature
110    let hardware_feature = FeatureBuilder::default()
111        .with_name("hardware")
112        .with_constraint(HardwareConstraint { code: ViolationCode::default() })
113        .build()?;
114
115    // configure goal of optimization
116    GoalContextBuilder::with_features(&[minimize_unassigned, transport_feature, capacity_feature, hardware_feature])?
117        .build()
118}
More examples
Hide additional examples
examples/custom_objective.rs (line 130)
117fn define_goal(transport: Arc<dyn TransportCost>) -> GenericResult<GoalContext> {
118    let minimize_unassigned = MinimizeUnassignedBuilder::new("min-unassigned").build()?;
119    let capacity_feature = CapacityFeatureBuilder::<SingleDimLoad>::new("capacity").build()?;
120    let transport_feature = TransportFeatureBuilder::new("min-distance")
121        .set_transport_cost(transport)
122        .set_time_constrained(false)
123        .build_minimize_distance()?;
124
125    // create our custom feature that consists of an objective and a state
126    let priority_feature = FeatureBuilder::default()
127        .with_name("maximize-priority")
128        .with_objective(PriorityObjective)
129        .with_state(PriorityState)
130        .build()?;
131
132    // configure goal of optimization
133    GoalContextBuilder::with_features(&[priority_feature, minimize_unassigned, transport_feature, capacity_feature])?
134        .build()
135}

Trait Implementations§

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impl Default for FeatureBuilder

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fn default() -> FeatureBuilder

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V