Struct GlobalsRegistry 

pub struct GlobalsRegistry { /* private fields */ }

Global variables registry Thread-safe storage for global variables shared across rules

Implementations

impl GlobalsRegistry

pub fn new() -> Self

Create a new globals registry

pub fn define(&self, name: impl Into<String>, value: FactValue) -> Result<()>

Define a global variable

pub fn define_readonly( &self, name: impl Into<String>, value: FactValue, ) -> Result<()>

Define a read-only global variable

pub fn get(&self, name: &str) -> Result<FactValue>

Get a global variable value

pub fn set(&self, name: &str, value: FactValue) -> Result<()>

Set a global variable value

pub fn exists(&self, name: &str) -> bool

Check if a global variable exists

pub fn remove(&self, name: &str) -> Result<()>

Remove a global variable

pub fn list_globals(&self) -> Vec<String>

List all global variable names

pub fn get_all(&self) -> HashMap<String, FactValue>

Get all globals as a HashMap

pub fn clear(&self)

Clear all global variables

pub fn increment(&self, name: &str, delta: f64) -> Result<()>

Increment a numeric global variable

Trait Implementations

impl Clone for GlobalsRegistry

fn clone(&self) -> GlobalsRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GlobalsRegistry

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

Formats the value using the given formatter.

impl Default for GlobalsRegistry

fn default() -> Self

Returns the “default value” for a type.