Struct ChangeStreamPipeline 

pub struct ChangeStreamPipeline {
    pub stages: Vec<PipelineStage>,
}

A pipeline stage for filtering Change Stream events.

Fields

stages: Vec<PipelineStage>

Pipeline stages.

Implementations

impl ChangeStreamPipeline

pub fn new() -> Self

Create a new empty pipeline.

pub fn match_stage(self, filter: Value) -> Self

Add a $match stage to filter events.

pub fn operation_types(self, types: &[ChangeType]) -> Self

Filter by operation type(s).

pub fn namespace(self, db: &str, collection: &str) -> Self

Filter by namespace (database.collection).

pub fn project(self, projection: Value) -> Self

Add a $project stage.

Trait Implementations

impl Clone for ChangeStreamPipeline

fn clone(&self) -> ChangeStreamPipeline

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangeStreamPipeline

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

Formats the value using the given formatter.

impl Default for ChangeStreamPipeline

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ChangeStreamPipeline

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ChangeStreamPipeline

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.