Struct DataSourceConfig 

pub struct DataSourceConfig { /* private fields */ }

数据源配置：source 名 → DataSource

Implementations

impl DataSourceConfig

pub fn new() -> Self

pub fn from_json(v: &Value) -> Result<Self, String>

从 JSON 解析：{ "sources": { "<name>": "<kind>" } }

null / 无 sources → 空配置（等价单源 Mongo）。

pub fn register(&mut self, name: &str, source: DataSource)

注册 / 覆盖一个数据源

pub fn get(&self, name: &str) -> Option<DataSource>

pub fn resolve(&self, source: Option<&str>) -> Result<DataSource, String>

解析 schema 声明的 source 名 → DataSource

• None（schema 未声明）→ 名为 DEFAULT_SOURCE 的数据源；配置未声明则回落 Mongo
• Some(name) → 必须已在配置中声明，否则 Err（避免静默走错库）

Trait Implementations

impl Clone for DataSourceConfig

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 DataSourceConfig

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

Formats the value using the given formatter.

impl Default for DataSourceConfig

fn default() -> Self

Returns the “default value” for a type.