Struct RetryBackend 

pub struct RetryBackend { /* private fields */ }

Decorator backend that retries transient failures with exponential backoff.

Implementations

impl RetryBackend

pub fn new(inner: Arc<dyn Backend>) -> Self

Create a new retry decorator.

pub fn max_retries(self, n: u32) -> Self

Set the maximum number of retry attempts.

pub fn base_delay(self, d: Duration) -> Self

Set the base delay between retries (doubles each attempt).

Trait Implementations

impl Backend for RetryBackend

fn scheme(&self) -> &'static str

Returns the URL scheme this backend handles (e.g., "env").

fn get(&self, url: &Url) -> Result<SecretString, Error>

Fetch the secret at the given URL.

fn put(&self, url: &Url, value: &SecretString) -> Result<(), Error>

Store a secret at the given URL.

fn list(&self, url: &Url) -> Result<Vec<Entry>, Error>

List entries matching the URL prefix or pattern.

fn delete(&self, url: &Url) -> Result<(), Error>

Delete the secret at the given URL.

fn exists(&self, url: &Url) -> Result<bool, Error>

Returns true if a secret exists at the given URL.

fn validate(&self, _url: &Url) -> Result<(), Error>

Validate URL grammar without performing I/O.