Struct Encoding 

pub struct Encoding {

    pub primitive_type: Option<PrimitiveType>,
    pub offset: Option<usize>,
    pub presence: Presence,
    pub since_version: u16,
    pub null_value: Option<u64>,
    pub character_encoding: Option<String>,
    pub semantic_type: Option<String>,
    pub min_value: Option<u64>,
    pub max_value: Option<u64>,
    pub description: Option<String>,
    pub constant_value: Option<String>,
    pub length: Option<usize>,
    pub epoch: Option<String>,
    pub time_unit: Option<String>,
    pub is_variable_length: bool,
    pub deprecated: bool,
}

How a token is encoded on the wire.

Fields

primitive_type: Option<PrimitiveType>

Primitive type for leaf tokens; None for structural tokens.

offset: Option<usize>

Byte offset within the enclosing block; None when not declared.

presence: Presence

Presence of the value.

since_version: u16

Schema version in which this token was introduced.

null_value: Option<u64>

Null sentinel for optional fields; None when not applicable.

character_encoding: Option<String>

Character encoding for string fields (e.g. "UTF-8", "ASCII"); None for non-string fields.

semantic_type: Option<String>

SBE semantic type annotation (e.g. "Price", "Qty"); None when not declared.

min_value: Option<u64>

Minimum valid value for the type; None when not declared.

max_value: Option<u64>

Maximum valid value for the type; None when not declared.

description: Option<String>

Human-readable description from XML; None when absent.

constant_value: Option<String>

Constant value for presence="constant" fields; None otherwise.

length: Option<usize>

Array length for fixed-size primitive arrays.

epoch: Option<String>

Epoch for timestamp encoding (e.g. “unix”); None when not declared.

time_unit: Option<String>

Time unit for timestamp encoding (e.g. “nanoseconds”); None when not declared.

is_variable_length: bool

Whether this token’s wire size is variable; used for var-data composites.

deprecated: bool

Whether this type or field is marked as deprecated in the schema.

Trait Implementations

impl Clone for Encoding

fn clone(&self) -> Encoding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Encoding

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

Formats the value using the given formatter.

impl Default for Encoding

fn default() -> Encoding

Returns the “default value” for a type.

impl Eq for Encoding

impl PartialEq for Encoding

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Encoding