Struct Mapping 

pub struct Mapping {
    pub format_version: u16,
    pub schema_generation: SchemaGeneration,
    pub mode: IndexMode,
    pub fields: BTreeMap<String, FieldMapping>,
    pub extensions: MappingExtensions,
}

Normalized mapping semantics for one schema generation.

Durable catalog records own the canonical bytes for this exact type. Execution crates compile it but do not define a second mapping model.

Fields

format_version: u16

schema_generation: SchemaGeneration

mode: IndexMode

fields: BTreeMap<String, FieldMapping>

extensions: MappingExtensions

Semantics owned by the sole current mapping format.

Implementations

impl Mapping

pub fn empty(mode: IndexMode) -> Self

pub fn normalized(self) -> Self

Completes format-4 metadata whose defaults are intrinsic to the native mapping model. Adapter-specific policy defaults are never applied here.

pub fn decode_canonical(bytes: &[u8]) -> Result<Self, MappingCodecError>

Decodes exact canonical catalog/public bytes after a minimal, duplicate-safe current-format probe.

pub fn encode_canonical(&self) -> Result<Vec<u8>, MappingCodecError>

pub fn validate(&self) -> Result<(), MappingValidationError>

Validates the dependency-free semantic mapping contract.

pub fn validate_current(&self) -> Result<(), MappingValidationError>

Validates a mapping admitted for a new index or successor generation.

pub fn is_additive_successor_of(&self, predecessor: &Self) -> bool

Returns whether self is an additive successor of predecessor.

This is the shared semantic check used before entering the catalog CAS. Existing field definitions and every format-4 extension identity are immutable; a successor may only append new definitions and their matching metadata.

Trait Implementations

impl Clone for Mapping

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Mapping

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Mapping

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Mapping

impl PartialEq for Mapping

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Mapping

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Mapping