Enum LookupResult 

pub enum LookupResult {
    Hit(RecordBatch),
    Pending,
    NotFound,
}

Result of a lookup operation.

Variants

Hit(RecordBatch)

Cache hit — value found in memory.

Pending

The lookup is in progress (async source query pending).

NotFound

Key does not exist in the source.

Implementations

impl LookupResult

pub const fn is_hit(&self) -> bool

Returns true if this is a cache hit.

pub const fn is_not_found(&self) -> bool

Returns true if the key was not found.

pub fn into_batch(self) -> Option<RecordBatch>

Extracts the RecordBatch from a Hit, consuming self.

Trait Implementations

impl Clone for LookupResult

fn clone(&self) -> LookupResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LookupResult

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

Formats the value using the given formatter.

impl PartialEq for LookupResult

fn eq(&self, other: &Self) -> 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 Eq for LookupResult