Struct StateTransition 

pub struct StateTransition {
    pub entity: String,
    pub from_state: Option<String>,
    pub to_state: String,
}

State transition identifier

Fields

entity: String

Entity name (e.g., “Order”, “User”)

from_state: Option<String>

From state (None for creation)

to_state: String

To state

Implementations

impl StateTransition

pub fn new( entity: impl Into<String>, from: Option<String>, to: impl Into<String>, ) -> Self

Create a new state transition

pub fn creation( entity: impl Into<String>, initial_state: impl Into<String>, ) -> Self

Create a creation transition (from None to initial state)

pub fn describe(&self) -> String

Get a human-readable description

Trait Implementations

impl Clone for StateTransition

fn clone(&self) -> StateTransition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StateTransition

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StateTransition

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for StateTransition

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StateTransition

fn eq(&self, other: &StateTransition) -> 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 Serialize for StateTransition

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for StateTransition

impl StructuralPartialEq for StateTransition