Trait ConfigSource 

pub trait ConfigSource: Send {
    // Required methods
    fn name(&self) -> &str;
    fn load(
        &self,
        builder: &mut ConfigSourceBuilder<'_>,
    ) -> Result<(), ConfigError>;

    // Provided methods
    fn allow_refresh(&self) -> bool { ... }
    fn refreshable(&self) -> Result<bool, ConfigError> { ... }
}

Config source.

Config source examples:

• Load from programming.
• Load from environment.
• Load from file.
• Load from network.
• …

Required Methods

fn name(&self) -> &str

Config source name.

fn load(&self, builder: &mut ConfigSourceBuilder<'_>) -> Result<(), ConfigError>

Load config source.

Provided Methods

fn allow_refresh(&self) -> bool

If this config source can be refreshed.

fn refreshable(&self) -> Result<bool, ConfigError>

Check if config source is refreshable.

Implementor should notice that everytime this method is called, the refreshable state must be reset to false.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors