Struct declarative_dataflow::TxData

pub struct TxData(pub isize, pub Value, pub Aid, pub Value, pub Option<Time>);

Transaction data.

Methods

impl TxData

pub fn add(e: Eid, a: &str, v: Value) -> Self

Creates TxData representing the addition of a single fact.

pub fn add_at(e: Eid, a: &str, v: Value, t: Time) -> Self

Creates TxData representing the addition of a single fact at a specific point in time.

pub fn retract(e: Eid, a: &str, v: Value) -> Self

Creates TxData representing the retraction of a single fact.

pub fn retract_at(e: Eid, a: &str, v: Value, t: Time) -> Self

Creates TxData representing the retraction of a single fact at a specific point in time.

Trait Implementations

impl PartialEq<TxData> for TxData

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for TxData

fn clone(&self) -> TxData

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialOrd<TxData> for TxData

fn partial_cmp(&self, other: &TxData) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &TxData) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &TxData) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &TxData) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &TxData) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for TxData

impl Ord for TxData

fn cmp(&self, other: &TxData) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl Debug for TxData

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

Formats the value using the given formatter.

impl Hash for TxData

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Serialize for TxData

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

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for TxData

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.