Trait Provider 

pub trait Provider: Send + Sync {
    // Required methods
    fn name(&self) -> &str;
    fn load(&self, settings: &mut Settings) -> Result;

    // Provided method
    fn reload_token(&self) -> Box<dyn ChangeToken> { ... }
}

Defines the behavior of an object that provides configuration settings.

Required Methods

fn name(&self) -> &str

Gets the name of the provider.

fn load(&self, settings: &mut Settings) -> Result

Loads the provided configuration.

Arguments

• settings - The settings to load the configured values into

Provided Methods

fn reload_token(&self) -> Box<dyn ChangeToken>

Returns a change token that indicates when this provider has changed.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Provider for config::chained::Provider

Available on crate feature chained only.

impl Provider for config::cmd::Provider

Available on crate feature cmd only.

impl Provider for config::env::Provider

Available on crate feature env only.

impl Provider for config::ini::Provider

Available on crate feature ini only.

impl Provider for config::json::Provider

Available on crate feature json only.

impl Provider for config::mem::Provider

Available on crate feature mem only.

impl Provider for config::xml::Provider

Available on crate feature xml only.

impl Provider for config::yaml::Provider

Available on crate feature yaml only.

impl<T: Serialize + Send + Sync> Provider for config::typed::Provider<T>

Available on crate feature typed only.