Struct TxBuilder 

pub struct TxBuilder { /* private fields */ }

Builds a TxData value from transaction forms.

Implementations

impl TxBuilder

pub fn new() -> Self

An empty transaction.

pub fn entity(self, entity: EntityMap) -> Self

Adds a map-form entity.

pub fn add(self, e: impl IntoEdn, a: &str, v: impl IntoEdn) -> Self

Asserts a fact: [:db/add e a v].

pub fn retract(self, e: impl IntoEdn, a: &str, v: impl IntoEdn) -> Self

Retracts a fact: [:db/retract e a v].

pub fn cas( self, e: impl IntoEdn, a: &str, old: impl IntoEdn, new: impl IntoEdn, ) -> Self

Compare-and-swap: [:db/cas e a old new].

pub fn retract_entity(self, e: impl IntoEdn) -> Self

Retracts a whole entity: [:db/retractEntity e].

pub fn form(self, form: Edn) -> Self

Appends a raw transaction form (an escape hatch for forms the typed builder does not model, e.g. :db/fn invocations).

pub fn build(self) -> TxData

Finalizes the transaction.

Trait Implementations

impl Clone for TxBuilder

fn clone(&self) -> TxBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TxBuilder

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

Formats the value using the given formatter.

impl Default for TxBuilder

fn default() -> TxBuilder

Returns the “default value” for a type.