Struct RangeCursor 

pub struct RangeCursor { /* private fields */ }

Stable cursor token for resumable range scans.

The token is independent of in-memory traversal state: it records the last emitted key, and the next scan resumes strictly after that key. This makes it suitable for checkpointing background indexing or sync jobs for an immutable tree snapshot.

Implementations

impl RangeCursor

pub fn start() -> Self

Start scanning from the beginning of the requested range.

pub fn after_key(key: impl Into<Vec<u8>>) -> Self

Resume scanning strictly after key.

pub fn after(&self) -> Option<&[u8]>

Return the key this cursor resumes after, if any.

pub fn is_start(&self) -> bool

Whether this cursor represents the beginning of a range.

Trait Implementations

impl Clone for RangeCursor

fn clone(&self) -> RangeCursor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RangeCursor

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

Formats the value using the given formatter.

impl Default for RangeCursor

fn default() -> RangeCursor

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RangeCursor

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for RangeCursor

impl PartialEq for RangeCursor

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for RangeCursor

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 RangeCursor