Struct MetadataMap 

pub struct MetadataMap {
    pub inner: HashMap<String, MetadataValue>,
}

A generic metadata map. Newtype with a flattened map so that serde encodes just a JSON/YAML object and not an inner field name.

Fields

inner: HashMap<String, MetadataValue>

Implementations

impl MetadataMap

pub fn new() -> Self

Create an empty metadata map.

pub fn iter(&self) -> impl Iterator<Item = (&String, &MetadataValue)>

Iterate over key-value pairs.

pub fn insert<K: Into<String>, V: Into<MetadataValue>>( &mut self, key: K, value: V, )

Insert any value implementing Into.

pub fn get(&self, key: &str) -> Option<&MetadataValue>

Get a value by key.

pub fn get_mut(&mut self, key: &str) -> Option<&mut MetadataValue>

Mutable get.

pub fn is_empty(&self) -> bool

Returns true if map is empty.

pub fn len(&self) -> usize

Length of the map.

pub fn extend(&mut self, other: MetadataMap)

Extend metadata map with another.

Trait Implementations

impl Clone for MetadataMap

fn clone(&self) -> MetadataMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataMap

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

Formats the value using the given formatter.

impl Default for MetadataMap

fn default() -> MetadataMap

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetadataMap

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<MetadataMap> for MetadataValue

fn from(m: MetadataMap) -> Self

Converts to this type from the input type.

impl<K, V> FromIterator<(K, V)> for MetadataMap

where K: Into<String>, V: Into<MetadataValue>,

fn from_iter<I: IntoIterator<Item = (K, V)>>(iter: I) -> Self

Creates a value from an iterator.

impl JsonSchema for MetadataMap

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for MetadataMap

fn eq(&self, other: &MetadataMap) -> 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 Serialize for MetadataMap

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 MetadataMap

impl TryFrom<&MetadataValue> for MetadataMap

type Error = MetadataConversionError

The type returned in the event of a conversion error.

fn try_from(value: &MetadataValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<MetadataValue> for MetadataMap

type Error = MetadataConversionError

The type returned in the event of a conversion error.

fn try_from(value: MetadataValue) -> Result<Self, Self::Error>

Performs the conversion.