Struct Attribute 

pub struct Attribute {
    pub tag: BString,
    pub attribute_type: char,
    pub value: BString,
}

Represents an optional attribute in a graph

Attributes consist of three components:

• tag - Identifier for the attribute (e.g., “name”, “weight”)
• attribute_type - Single character identifying the data type:
  • ‘i’: Integer
  • ‘f’: Float
  • ‘Z’: String (default)
  • ‘J’: JSON
  • ‘H’: Hexadecimal
  • ‘B’: Binary bytes
• value - The actual value stored as a BString

Attributes are typically formatted as “tag:type:value” when serialized.

Fields

tag: BString

attribute_type: char

value: BString

Implementations

impl Attribute

pub fn builder() -> AttributeBuilder

Create an instance of Attribute using the builder syntax

impl Attribute

pub fn typed_value(&self) -> Result<AttributeValue>

Get the attribute value as the appropriate type based on the attribute type

pub fn as_int(&self) -> Result<isize>

Get the integer value if the attribute type is ‘i’

pub fn as_float(&self) -> Result<f32>

Get the float value if the attribute type is ‘f’

pub fn as_string(&self) -> Result<&BStr>

Get the string value if the attribute type is ‘Z’

pub fn as_json(&self) -> Result<Value>

Get the JSON value if the attribute type is ‘J’

Trait Implementations

impl Clone for Attribute

fn clone(&self) -> Attribute

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Attribute

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

Formats the value using the given formatter.

impl Default for Attribute

fn default() -> Attribute

Returns the “default value” for a type.

impl Display for Attribute

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

Formats the value using the given formatter.

impl FromStr for Attribute

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self>

Parses a string s to return a value of this type.