Struct AccumulatePattern 

pub struct AccumulatePattern {
    pub result_var: String,
    pub source_pattern: String,
    pub extract_field: String,
    pub source_conditions: Vec<String>,
    pub function: Box<dyn AccumulateFunction>,
}

Accumulate pattern in a rule condition

Fields

result_var: String

Variable to bind the result to (e.g., “$total”)

source_pattern: String

Source pattern to match facts (e.g., “Order”)

extract_field: String

Field to extract from matching facts (e.g., “amount”)

source_conditions: Vec<String>

Conditions on the source pattern (e.g., “status == ‘completed’”)

function: Box<dyn AccumulateFunction>

Accumulate function to apply (sum, avg, count, etc.)

Implementations

impl AccumulatePattern

pub fn new( result_var: String, source_pattern: String, extract_field: String, function: Box<dyn AccumulateFunction>, ) -> Self

Create a new accumulate pattern

pub fn with_condition(self, condition: String) -> Self

Add a condition to the source pattern

Trait Implementations

impl Clone for AccumulatePattern

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AccumulatePattern

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

Formats the value using the given formatter.