Struct Vid 

pub struct Vid(/* private fields */);

Internal Vertex ID (64 bits) - pure auto-increment

VIDs are dense, sequential identifiers assigned on vertex creation. Unlike the previous design, VIDs no longer embed label information. Label lookups are done via the VidLabelsIndex.

For O(1) array indexing during query execution, use DenseIdx via VidRemapper.

Implementations

impl Vid

pub const INVALID: Vid

Sentinel value representing an invalid/null VID.

pub fn new(id: u64) -> Vid

Creates a new vertex ID from a raw u64 value.

pub fn as_u64(&self) -> u64

Returns the raw u64 value of this VID.

pub fn is_invalid(&self) -> bool

Check if this VID is the invalid sentinel.

Trait Implementations

impl Clone for Vid

fn clone(&self) -> Vid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Vid

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

Formats the value using the given formatter.

impl Default for Vid

fn default() -> Vid

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Vid

fn deserialize<__D>( __deserializer: __D, ) -> Result<Vid, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Vid

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

Formats the value using the given formatter.

impl From<u64> for Vid

fn from(val: u64) -> Vid

Converts to this type from the input type.

impl FromIterator<Vid> for IdMap

fn from_iter<I>(iter: I) -> IdMap

where I: IntoIterator<Item = Vid>,

Creates a value from an iterator.

impl FromStr for Vid

fn from_str(s: &str) -> Result<Vid, Error>

Parses a Vid from a numeric string.

type Err = Error

The associated error which can be returned from parsing.

impl Hash for Vid

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

where __H: Hasher,

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 Vid

fn cmp(&self, other: &Vid) -> 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 Vid

fn eq(&self, other: &Vid) -> 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 PartialOrd for Vid

fn partial_cmp(&self, other: &Vid) -> 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 Serialize for Vid

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&Value> for Vid

type Error = UniError

The type returned in the event of a conversion error.

fn try_from(value: &Value) -> Result<Vid, <Vid as TryFrom<&Value>>::Error>

Performs the conversion.

impl TryFrom<Value> for Vid

type Error = UniError

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Vid, <Vid as TryFrom<Value>>::Error>

Performs the conversion.

impl Copy for Vid

impl Eq for Vid

impl StructuralPartialEq for Vid