Struct Snapshot 

pub struct Snapshot {
    pub tokens: HashMap<String, i64>,
    pub data: HashMap<String, Value>,
}

The current state of all states in a schema.

Fields

tokens: HashMap<String, i64>

data: HashMap<String, Value>

Implementations

impl Snapshot

pub fn new() -> Self

pub fn from_schema(s: &Schema) -> Self

Creates a snapshot initialized from schema defaults.

pub fn get_tokens(&self, state_id: &str) -> i64

pub fn set_tokens(&mut self, state_id: &str, count: i64)

pub fn add_tokens(&mut self, state_id: &str, delta: i64)

pub fn get_data(&self, state_id: &str) -> Option<&Value>

pub fn set_data(&mut self, state_id: &str, value: Value)

pub fn get_data_map(&self, state_id: &str) -> Option<&Map<String, Value>>

Returns data as a mutable JSON object, or None.

pub fn get_data_map_value(&self, state_id: &str, key: &str) -> Option<&Value>

Gets a value from a data state map.

pub fn set_data_map_value(&mut self, state_id: &str, key: &str, value: Value)

Sets a value in a data state map.

Trait Implementations

impl Clone for Snapshot

fn clone(&self) -> Snapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Snapshot

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

Formats the value using the given formatter.

impl Default for Snapshot

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Snapshot

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Snapshot

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

where __S: Serializer,

Serialize this value into the given Serde serializer.