Trait options::OptionsChangeTokenSource
source · [−]pub trait OptionsChangeTokenSource<TOptions> {
fn token(&self) -> Box<dyn ChangeToken>;
fn name(&self) -> Option<&str> { ... }
}Expand description
Used to fetch ChangeToken used for tracking options changes.
Required Methods
sourcefn token(&self) -> Box<dyn ChangeToken>
fn token(&self) -> Box<dyn ChangeToken>
Creates and returns a ChangeToken which can be
used to register a change notification callback.