Struct MetaData 

pub struct MetaData {
    pub task: Value,
    pub login_info: Value,
    pub module_config: Value,
    pub trait_meta: Value,
}

Fields

task: Value

Task metadata. Provenance: Task definition → ParserModel/ErrorModel processing → TaskFactory merge → Module.generate() → Request.meta Stored by serializing the task config into a Value via add_task_config().

login_info: Value

Login information. Provenance: the LoginInfo.extra field → user authentication/authorization system → Module.generate() → Request.meta Extracted from LoginInfo’s extra field and serialized via add_login_info().

module_config: Value

Module configuration. Provenance: database (account/platform/middleware relation tables) → ModuleConfig instance → module initialization → Module.generate() → Request.meta Includes: account table config, platform table config, the module’s own config, rel_module_account config, rel_module_platform config, middleware config, and so on. Stored by serializing the whole ModuleConfig struct via add_module_config().

trait_meta: Value

Trait metadata. Provenance: individual trait implementations → trait type definitions → business code calls → add_trait_config() → Request.meta Stores trait-level custom configuration and extension data via add_trait_config().

Implementations

impl MetaData

pub fn add(self, key: impl AsRef<str>, value: Value, source: MetaSource) -> Self

pub fn add_task_config<T>(self, task_meta: T) -> Self

where T: Serialize,

pub fn add_login_info(self, login_info: &LoginInfo) -> Self

pub fn add_module_config(self, module_config: &ModuleConfig) -> Self

pub fn add_trait_config<T>(self, key: impl AsRef<str>, value: T) -> Self

where T: Serialize,

pub fn get_trait_config<T>(&self, key: &str) -> Option<T>

where T: for<'de> Deserialize<'de>,

pub fn get_login_config<T>(&self, key: &str) -> Option<T>

where T: for<'de> Deserialize<'de>,

pub fn get_module_config<T>(&self, key: &str) -> Option<T>

where T: for<'de> Deserialize<'de>,

pub fn get_task_config<T>(&self, key: &str) -> Option<T>

where T: for<'de> Deserialize<'de>,

Trait Implementations

impl Clone for MetaData

fn clone(&self) -> MetaData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetaData

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

Formats the value using the given formatter.

impl Default for MetaData

fn default() -> MetaData

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaData

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<MetaData> for Value

fn from(value: MetaData) -> Self

Converts to this type from the input type.

impl Serialize for MetaData

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.