Struct EventKey 

pub struct EventKey {
    pub lamport: LamportTimestamp,
    pub stream: StreamId,
    pub offset: Offset,
}

The sort key of an event

It is sorted first by Lamport timestamp and then by stream ID; this combination is already unique. The offset is included to keep track of progress in OffsetMap.

Fields

lamport: LamportTimestamp

stream: StreamId

offset: Offset

Trait Implementations

impl Abomonation for EventKey

unsafe fn entomb<W: Write>(&self, _write: &mut W) -> Result<()>

Write any additional information about &self beyond its binary representation.

fn extent(&self) -> usize

Reports the number of further bytes required to entomb self.

unsafe fn exhume<'a, 'b>( &'a mut self, bytes: &'b mut [u8], ) -> Option<&'b mut [u8]>

Recover any information for &mut self not evident from its binary representation.

impl AddAssign<&EventKey> for OffsetMap

fn add_assign(&mut self, other: &EventKey)

Performs the += operation.

impl Clone for EventKey

fn clone(&self) -> EventKey

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for EventKey

impl Debug for EventKey

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EventKey

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for EventKey

impl From<EventKey> for SortKey

fn from(k: EventKey) -> Self

Converts to this type from the input type.

impl Hash for EventKey

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EventKey

fn cmp(&self, other: &EventKey) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EventKey

fn eq(&self, other: &EventKey) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for EventKey

fn partial_cmp(&self, other: &EventKey) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for EventKey

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for EventKey

impl SubAssign<&EventKey> for OffsetMap

fn sub_assign(&mut self, other: &EventKey)

Ensure that the given event is no longer contained within this OffsetMap.