Struct MapExternalProvider 

pub struct MapExternalProvider { /* private fields */ }

An ExternalConditionProvider backed by a HashMap<String, bool>.

Returns True/False for keys present in the map and Unknown for missing keys. This is the simplest way for API callers to supply external condition values.

Example

use std::collections::HashMap;
use automapper_validation::{MapExternalProvider, ConditionResult};
use automapper_validation::eval::ExternalConditionProvider;

let mut conditions = HashMap::new();
conditions.insert("DateKnown".to_string(), true);

let provider = MapExternalProvider::new(conditions);
assert_eq!(provider.evaluate("DateKnown"), ConditionResult::True);
assert_eq!(provider.evaluate("Unknown"), ConditionResult::Unknown);

Implementations

impl MapExternalProvider

pub fn new(conditions: HashMap<String, bool>) -> Self

Creates a new MapExternalProvider from the given condition map.

Trait Implementations

impl ExternalConditionProvider for MapExternalProvider

fn evaluate(&self, condition_name: &str) -> ConditionResult

Evaluate an external condition by name.

fn now(&self) -> DateTime<Utc>

The present moment, for conditions that compare against it: UTILMD [494] “das hier genannte Datum muss der Zeitpunkt sein, zu dem das Dokument erstellt wurde, oder ein Zeitpunkt, der davor liegt”. The wall clock by default; a caller on a simulated clock overrides it.