Enum Query 

pub enum Query {
    All,
    Items(Vec<QueryItem>),
}

A query: a set of QueryItems OR’d together, or the catch-all Query::All.

All is a distinct variant rather than “an item with no constraints” so the read and condition paths can recognise a full scan and bypass the index entirely. An empty Items set is the opposite: it matches nothing.

Variants

All

Matches every event. Full scans and broad projection catch-up use this and skip the index.

Items(Vec<QueryItem>)

Matches an event if any contained item matches (logical OR). Empty matches nothing.

Implementations

impl Query

pub fn all() -> Self

The catch-all query, matching every event.

pub fn items(items: impl Into<Vec<QueryItem>>) -> Self

A query over a set of items, OR’d together.

pub fn item(item: QueryItem) -> Self

A query with a single item.

Trait Implementations

impl Clone for Query

fn clone(&self) -> Query

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Query

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

Formats the value using the given formatter.

impl Eq for Query

impl PartialEq for Query

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Query