Enum GraphWeightEncoding 

#[repr(i32)]
pub enum GraphWeightEncoding {
    GraphWeightUnit = 0,
    GraphWeightTextKey = 1,
    GraphWeightJsonKey = 2,
    GraphWeightF32LePrefix = 3,
}

How to decode a non-negative edge cost (weight) from an edge’s properties.

Variants

GraphWeightUnit = 0

No weight is read; every edge costs 1.0 (== unweighted hop count).

GraphWeightTextKey = 1

Properties are the UTF-8 text “:” (e.g. “weight:0.9”). The weight_key field selects (default “weight”). The first matching “:” token wins; missing key falls back to default_weight.

GraphWeightJsonKey = 2

Properties are a UTF-8 JSON object; weight_key names a top-level numeric field (default “weight”). Missing/non-numeric falls back to default_weight.

GraphWeightF32LePrefix = 3

Properties begin with a little-endian f32 cost in the first 4 bytes. This is a NEW convention defined by this RPC (no such prefix existed before); writers that want it must prepend the 4 weight bytes themselves.

Implementations

impl GraphWeightEncoding

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of GraphWeightEncoding.

pub fn from_i32(value: i32) -> Option<GraphWeightEncoding>

👎Deprecated:

Use the TryFrom<i32> implementation instead

Converts an i32 to a GraphWeightEncoding, or None if value is not a valid variant.

impl GraphWeightEncoding

pub fn as_str_name(&self) -> &'static str

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for GraphWeightEncoding

fn clone(&self) -> GraphWeightEncoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for GraphWeightEncoding

impl Debug for GraphWeightEncoding

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

Formats the value using the given formatter.

impl Default for GraphWeightEncoding

fn default() -> GraphWeightEncoding

Returns the “default value” for a type.

impl Eq for GraphWeightEncoding

impl From<GraphWeightEncoding> for i32

fn from(value: GraphWeightEncoding) -> i32

Converts to this type from the input type.

impl Hash for GraphWeightEncoding

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for GraphWeightEncoding

fn cmp(&self, other: &GraphWeightEncoding) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for GraphWeightEncoding

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for GraphWeightEncoding

fn partial_cmp(&self, other: &GraphWeightEncoding) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for GraphWeightEncoding

impl TryFrom<i32> for GraphWeightEncoding

type Error = UnknownEnumValue

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<GraphWeightEncoding, UnknownEnumValue>

Performs the conversion.