Enum CostPolicy 

pub enum CostPolicy {
    Midpoint,
    Optimistic,
    Pessimistic,
}

Policy for calculating expected cost from ranges (RFC-0001)

Variants

Midpoint

Use midpoint: (min + max) / 2

Optimistic

Use minimum (optimistic)

Pessimistic

Use maximum (pessimistic)

Implementations

impl CostPolicy

pub fn expected(&self, min: Decimal, max: Decimal) -> Decimal

Calculate expected value from a range

Trait Implementations

impl Clone for CostPolicy

fn clone(&self) -> CostPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CostPolicy

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

Formats the value using the given formatter.

impl Default for CostPolicy

fn default() -> CostPolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CostPolicy

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CostPolicy

fn eq(&self, other: &CostPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CostPolicy

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CostPolicy

impl Eq for CostPolicy

impl StructuralPartialEq for CostPolicy