Struct hakuban::TagExposeContract
source · pub struct TagExposeContract { /* private fields */ }
Expand description
Represents a wish, a contract to expose any object with specific tag
TagExposeContract is a Stream, emitting ObjectStateSink objects.
A new ObjectStateSink will get emitted if/when LocalExchange gets to know at least one observer (ObjectObserveContract) of an object tagged with the tag the contract pertains to. TagExposeContract will not emit more than one ObjectStateSink per object at a time. It will emit multiple ObjectStateSinks accepting ObjectStates of different objects. New ObjectStateSink for a specific object will only get emitted when previous ObjectStateSink of that object gets dropped.
The Stream will end when contract gets TagExposeContract::terminated.
Cloning
TagExposeContract can be cloned, but cloning does not create a new contract. Think of it as creating o paper copy of an on-paper contract. It’s a new sheet of paper, but not a new deal/agreement. Clones are basically references to a logical agreement.
Accordingly, terminating any of the clones (or the original), renders all of them terminated.
Implementations§
source§impl TagExposeContract
impl TagExposeContract
pub fn descriptor(&self) -> &TagDescriptor
pub fn ready(&mut self) -> Vec<ObjectStateSink> ⓘ
pub fn terminate(&mut self)
Trait Implementations§
source§impl Clone for TagExposeContract
impl Clone for TagExposeContract
source§fn clone(&self) -> TagExposeContract
fn clone(&self) -> TagExposeContract
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Stream for TagExposeContract
impl Stream for TagExposeContract
§type Item = ObjectStateSink
type Item = ObjectStateSink
Auto Trait Implementations§
impl RefUnwindSafe for TagExposeContract
impl Send for TagExposeContract
impl Sync for TagExposeContract
impl Unpin for TagExposeContract
impl UnwindSafe for TagExposeContract
Blanket Implementations§
source§impl<T> StreamExt for Twhere
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impl<T> StreamExt for Twhere T: Stream + ?Sized,
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