Struct MetadataSchema 

pub struct MetadataSchema { /* private fields */ }

Metadata schema for core keys and plugin extension keys.

Implementations

impl MetadataSchema

pub fn core() -> Self

Creates schema containing all core:* keys.

pub fn register_plugin_key( &mut self, key: &str, kind: MetadataKind, ) -> Result<()>

Registers a plugin metadata key in publisher/plugin:key format.

pub fn contains_key(&self, key: &str) -> bool

Returns true when key is registered in schema.

pub fn kind(&self, key: &str) -> Option<MetadataKind>

Returns declared metadata kind for registered key.

pub fn is_core_key(&self, key: &str) -> bool

Returns true when key is one of built-in core:* keys.

pub fn validate_value(&self, key: &str, value: &MetadataValue) -> Result<()>

Validates that key is registered and value matches declared kind.

Trait Implementations

impl Clone for MetadataSchema

fn clone(&self) -> MetadataSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataSchema

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

Formats the value using the given formatter.

impl PartialEq for MetadataSchema

fn eq(&self, other: &MetadataSchema) -> 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 Eq for MetadataSchema

impl StructuralPartialEq for MetadataSchema