Struct NotifyWatcher 

pub struct NotifyWatcher<TValueFn, TValue>
where
    TValueFn: Fn() -> TValue,
{ /* private fields */ }

Watcher that calls a ‘notify’ method whenever its core value changes

Implementations

impl<TValueFn, TValue> NotifyWatcher<TValueFn, TValue>

where TValueFn: Fn() -> TValue,

pub fn new( get_value: TValueFn, to_notify: Arc<dyn Notifiable>, ) -> (NotifyWatcher<TValueFn, TValue>, ReleasableNotifiable)

Creates a new notify watcher

The return value is the watcher and the function to call to indicate that a change has happened in the underlying data store (the corresponding to_notify notification will be fired only if get() has been called since the last update)

Trait Implementations

impl<TValueFn, TValue> Drop for NotifyWatcher<TValueFn, TValue>

where TValueFn: Fn() -> TValue,

fn drop(&mut self)

Executes the destructor for this type.

impl<TValueFn, TValue> Watcher<TValue> for NotifyWatcher<TValueFn, TValue>

where TValueFn: Fn() -> TValue,

fn get(&self) -> TValue

Reads the current value of the binding. The notification associated with this watcher will be fired if the value is changed from the last value that was returned by this call.