Struct Txn

pub struct Txn {
    pub(super) req: TxnRequest,
    c_when: bool,
    c_then: bool,
    c_else: bool,
}

Fields

req: TxnRequest

c_when: bool

c_then: bool

c_else: bool

Implementations

impl Txn

pub fn merge_all<T: IntoIterator<Item = Txn>>(values: T) -> Self

pub fn merge(self, other: Txn) -> Self

pub fn new() -> Self

pub fn put_if_not_exists(key: Vec<u8>, value: Vec<u8>) -> Self

Builds a transaction that puts a value at a key if the key does not exist.

pub fn compare_and_put(key: Vec<u8>, expect: Vec<u8>, value: Vec<u8>) -> Self

Builds a transaction that puts a value at a key if the key exists and the value is equal to expect.

pub fn when(self, compares: impl Into<Vec<Compare>>) -> Self

Takes a list of comparison. If all comparisons passed in succeed, the operations passed into and_then() will be executed. Or the operations passed into or_else() will be executed.

pub fn and_then(self, operations: impl Into<Vec<TxnOp>>) -> Self

Takes a list of operations. The operations list will be executed, if the comparisons passed into when() succeed.

pub fn or_else(self, operations: impl Into<Vec<TxnOp>>) -> Self

Takes a list of operations. The operations list will be executed, if the comparisons passed into when() fail.

pub fn max_operations(&self) -> usize

Trait Implementations

impl Clone for Txn

fn clone(&self) -> Txn

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Txn

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

Formats the value using the given formatter.

impl Default for Txn

fn default() -> Txn

Returns the “default value” for a type.

impl From<Txn> for Txn

fn from(txn: Txn) -> Self

Converts to this type from the input type.

impl From<Txn> for TxnRequest

fn from(txn: Txn) -> Self

Converts to this type from the input type.

impl PartialEq for Txn

fn eq(&self, other: &Txn) -> 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 StructuralPartialEq for Txn