Struct mongodb::options::EstimatedDocumentCountOptions
source · #[non_exhaustive]pub struct EstimatedDocumentCountOptions {
pub max_time: Option<Duration>,
pub selection_criteria: Option<SelectionCriteria>,
pub read_concern: Option<ReadConcern>,
pub comment: Option<Bson>,
}
Expand description
Specifies the options to a
Collection::estimated_document_count
operation.
Fields (Non-exhaustive)§
This struct is marked as non-exhaustive
Struct { .. }
syntax; cannot be matched against without a wildcard ..
; and struct update syntax will not work.max_time: Option<Duration>
The maximum amount of time to allow the query to run.
This options maps to the maxTimeMS
MongoDB query option, so the duration will be sent
across the wire as an integer number of milliseconds.
selection_criteria: Option<SelectionCriteria>
The criteria used to select a server for this operation.
If none specified, the default set on the collection will be used.
read_concern: Option<ReadConcern>
The level of the read concern.
comment: Option<Bson>
Tags the query with an arbitrary Bson
value to help trace the operation through the
database profiler, currentOp and logs.
This option is only supported on server versions 4.4+. The comment can be any Bson
value on server versions 4.4.14+. On server versions between 4.4.0 and 4.4.14, only
Bson::String
values are supported.
Implementations§
source§impl EstimatedDocumentCountOptions
impl EstimatedDocumentCountOptions
sourcepub fn builder() -> EstimatedDocumentCountOptionsBuilder<((), (), (), ())>
pub fn builder() -> EstimatedDocumentCountOptionsBuilder<((), (), (), ())>
Create a builder for building EstimatedDocumentCountOptions
.
On the builder, call .max_time(...)
(optional), .selection_criteria(...)
(optional), .read_concern(...)
(optional), .comment(...)
(optional) to set the values of the fields.
Finally, call .build()
to create the instance of EstimatedDocumentCountOptions
.
Trait Implementations§
source§impl Clone for EstimatedDocumentCountOptions
impl Clone for EstimatedDocumentCountOptions
source§fn clone(&self) -> EstimatedDocumentCountOptions
fn clone(&self) -> EstimatedDocumentCountOptions
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Default for EstimatedDocumentCountOptions
impl Default for EstimatedDocumentCountOptions
source§fn default() -> EstimatedDocumentCountOptions
fn default() -> EstimatedDocumentCountOptions
source§impl<'de> Deserialize<'de> for EstimatedDocumentCountOptions
impl<'de> Deserialize<'de> for EstimatedDocumentCountOptions
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Auto Trait Implementations§
impl Freeze for EstimatedDocumentCountOptions
impl !RefUnwindSafe for EstimatedDocumentCountOptions
impl Send for EstimatedDocumentCountOptions
impl Sync for EstimatedDocumentCountOptions
impl Unpin for EstimatedDocumentCountOptions
impl !UnwindSafe for EstimatedDocumentCountOptions
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