Struct CounterOperator 

pub struct CounterOperator;

Counter operator for counting use cases (addition)

Trait Implementations

impl Clone for CounterOperator

fn clone(&self) -> CounterOperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CounterOperator

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

Formats the value using the given formatter.

impl Default for CounterOperator

fn default() -> CounterOperator

Returns the “default value” for a type.

impl MergeOperator<i64> for CounterOperator

fn merge(&self, left: i64, right: i64) -> Result<i64, MapletError>

Merge two values using the operator ⊕

fn identity(&self) -> i64

Get the identity element for this operator

fn is_associative(&self) -> bool

Check if the operator is associative

fn is_commutative(&self) -> bool

Check if the operator is commutative

impl MergeOperator<u32> for CounterOperator

fn merge(&self, left: u32, right: u32) -> Result<u32, MapletError>

Merge two values using the operator ⊕

fn identity(&self) -> u32

Get the identity element for this operator

fn is_associative(&self) -> bool

Check if the operator is associative

fn is_commutative(&self) -> bool

Check if the operator is commutative

impl MergeOperator<u64> for CounterOperator

fn merge(&self, left: u64, right: u64) -> Result<u64, MapletError>

Merge two values using the operator ⊕

fn identity(&self) -> u64

Get the identity element for this operator

fn is_associative(&self) -> bool

Check if the operator is associative

fn is_commutative(&self) -> bool

Check if the operator is commutative

impl PartialEq for CounterOperator

fn eq(&self, other: &CounterOperator) -> 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 Copy for CounterOperator

impl Eq for CounterOperator

impl StructuralPartialEq for CounterOperator