Struct tantivy::directory::WatchCallbackList
source · pub struct WatchCallbackList { /* private fields */ }
Expand description
Helper struct to implement the watch method in Directory
implementations.
It registers callbacks (See .subscribe(...)
) and
calls them upon calls to .broadcast(...)
.
Implementations§
source§impl WatchCallbackList
impl WatchCallbackList
sourcepub fn subscribe(&self, watch_callback: WatchCallback) -> WatchHandle
pub fn subscribe(&self, watch_callback: WatchCallback) -> WatchHandle
Subscribes a new callback and returns a handle that controls the lifetime of the callback.
sourcepub fn broadcast(&self) -> FutureResult<()> ⓘ
pub fn broadcast(&self) -> FutureResult<()> ⓘ
Triggers all callbacks
Trait Implementations§
source§impl Default for WatchCallbackList
impl Default for WatchCallbackList
source§fn default() -> WatchCallbackList
fn default() -> WatchCallbackList
Returns the “default value” for a type. Read more
Auto Trait Implementations§
impl !Freeze for WatchCallbackList
impl RefUnwindSafe for WatchCallbackList
impl Send for WatchCallbackList
impl Sync for WatchCallbackList
impl Unpin for WatchCallbackList
impl UnwindSafe for WatchCallbackList
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
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Rc<Trait>
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.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
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. This is needed since Rust cannot
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&mut Trait
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) to &Any
. This is needed since Rust cannot
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