Struct Mapping 

pub struct Mapping {
    pub mapping_type: MappingType,
    pub extra: BTreeMap<String, GenericValue>,
    pub map_values: Option<MappingType>,
}

OpenSearch mapping. mapping_type is required; all other properties are passed through as-is.

Fields

mapping_type: MappingType

extra: BTreeMap<String, GenericValue>

map_values: Option<MappingType>

For a map field (a dynamic-key object), the mapping type of every value; None for every other field. Internal metadata only — it is not serialized into the index body (a map carries just {"type":"object","dynamic":true}, the latter via extra). It exists so a consumer turning the mapping into typed bindings can tell a map from a plain object and offer a value-kind-typed handle.

Trait Implementations

impl Clone for Mapping

fn clone(&self) -> Mapping

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<(), Error>

Formats the value using the given formatter.

impl Hash for Mapping

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 Serialize for Mapping

Serializes the way OpenSearch expects a field mapping — { "type": …, …extra } — rather than the struct’s two named fields. The extra settings sit beside type, exactly as they would in the index body.

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.