Struct SegmentId

pub struct SegmentId(pub u32);

Semantic type for segment identifiers, as an opacified integer.

Since segment identifiers are reused between incremental runs, and new segments can be inserted between any two existing segments, the internal numeric order of segment identifiers need not mean anything at all and is not exposed. If you need to compare segment identifiers for order, get a reference to the database’s SegmentOrder object.

Tuple Fields

0: u32

Trait Implementations

impl Clone for SegmentId

fn clone(&self) -> SegmentId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Comparer<SegmentId> for Database

fn cmp(&self, left: &SegmentId, right: &SegmentId) -> Ordering

Compares two objects, like Ord::cmp, but with additional state data from the comparer that can be used for the ordering.

fn lt(&self, left: &T, right: &T) -> bool

Returns true if the left argument is (strictly) less than the right argument

fn le(&self, left: &T, right: &T) -> bool

Returns true if the left argument is less or equal to the right argument

impl Debug for SegmentId

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

Formats the value using the given formatter.

impl Default for SegmentId

fn default() -> SegmentId

Returns the “default value” for a type.

impl Hash for SegmentId

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 PartialEq for SegmentId

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SegmentId

impl Eq for SegmentId

impl StructuralPartialEq for SegmentId