pub enum SubscriptionMessage<T> {
Record(T),
Batch(RecordBatch),
Watermark(i64),
}Expand description
Message types that can be received from a subscription.
Variants§
Record(T)
A single record.
Batch(RecordBatch)
A batch of records.
Watermark(i64)
A watermark timestamp.
Implementations§
Source§impl<T: Record> SubscriptionMessage<T>
impl<T: Record> SubscriptionMessage<T>
Sourcepub fn is_watermark(&self) -> bool
pub fn is_watermark(&self) -> bool
Returns true if this is a watermark message.
Sourcepub fn to_batch(self) -> Option<RecordBatch>
pub fn to_batch(self) -> Option<RecordBatch>
Converts to a RecordBatch if this is a data message.
Trait Implementations§
Auto Trait Implementations§
impl<T> Freeze for SubscriptionMessage<T>where
T: Freeze,
impl<T> !RefUnwindSafe for SubscriptionMessage<T>
impl<T> Send for SubscriptionMessage<T>where
T: Send,
impl<T> Sync for SubscriptionMessage<T>where
T: Sync,
impl<T> Unpin for SubscriptionMessage<T>where
T: Unpin,
impl<T> !UnwindSafe for SubscriptionMessage<T>
Blanket Implementations§
Source§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
Source§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Source§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata,
) -> <T as Pointee>::Metadata
fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
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> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> LayoutRaw for T
impl<T> LayoutRaw for T
Source§fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>
Returns the layout of the type.
Source§impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
impl<T, N1, N2> Niching<NichedOption<T, N1>> for N2
Source§unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
unsafe fn is_niched(niched: *const NichedOption<T, N1>) -> bool
Returns whether the given value has been niched. Read more
Source§fn resolve_niched(out: Place<NichedOption<T, N1>>)
fn resolve_niched(out: Place<NichedOption<T, N1>>)
Writes data to
out indicating that a T is niched.