Struct JsonDataSource 

pub struct JsonDataSource { /* private fields */ }

Shared JSON-based data source that reads version data from JSON objects. Result: Vec<HashMap<String, Value>> in version priority order.

Implementations

impl JsonDataSource

pub fn from_value(data: Value, versions: &[String]) -> Result<Self, DataError>

Creates a JSON data source from a JSON object. Expected format: { "VersionName": { "key1": value1, "key2": value2, ... }, ... }

pub fn from_str( json_content: &str, versions: &[String], ) -> Result<Self, DataError>

Creates a JSON data source from JSON text.

pub fn from_path( path: impl AsRef<Path>, versions: &[String], ) -> Result<Self, DataError>

Creates a JSON data source from a JSON file path.

Trait Implementations

impl DataSource for JsonDataSource

fn retrieve_single_value(&self, name: &str) -> Result<DataValue, DataError>

Retrieves a single numeric or boolean value.

fn retrieve_1d_array_or_string( &self, name: &str, ) -> Result<ValueSource, DataError>

Retrieves a 1D array (from sheet reference) or a literal string.

fn retrieve_2d_array( &self, name: &str, ) -> Result<Vec<Vec<DataValue>>, DataError>

Retrieves a 2D array from a sheet reference.