Struct QueryOptions 

pub struct QueryOptions {
    pub limit_items: usize,
    pub ordering: Ordering,
    /* private fields */
}

Validated, normalized form of QueryOptions (the proto wire type).

Fields

limit_items: usize

ordering: Ordering

Implementations

impl QueryOptions

pub fn from_proto( request: Option<&ProtoQueryOptions>, default_limit_items: u32, max_limit_items: u32, query_type: QueryType, filter: Option<&impl Message>, ) -> Result<Self, RpcError>

pub fn scan_direction(&self) -> ScanDirection

pub fn is_ascending(&self) -> bool

pub fn has_after_cursor(&self) -> bool

Whether the request explicitly positioned the low end of the scan via an after cursor. apply_cursor_bounds only ever raises range.start from after (in both orderings); before bounds the high end. Together with an explicit start_checkpoint, this lets the pruning-floor check distinguish “resume/start from here” (error if below the floor — the data is gone) from an open-ended low end (clamp up to the floor).

pub fn apply_cursor_bounds(&self, resolved: ResolvedRange) -> ResolvedRange

pub fn cursor_for_item(&self, checkpoint: u64, position: u64) -> Bytes

pub fn cursor_for_boundary(&self, checkpoint: u64, position: u64) -> Bytes

Trait Implementations

impl Clone for QueryOptions

fn clone(&self) -> QueryOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryOptions

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

Formats the value using the given formatter.

impl PartialEq for QueryOptions

fn eq(&self, other: &QueryOptions) -> 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 QueryOptions

impl StructuralPartialEq for QueryOptions